Energy absorption box structure and vehicle

Abstract

The invention discloses an energy absorption box structure which comprises an energy absorption box body, an installation cavity is formed in the energy absorption box body, the energy absorption box body is provided with a plurality of partition plates, and the partition plates divide the installation cavity into a plurality of energy absorption cavities; the reinforcing support is connected with the energy absorption box body, and the reinforcing support extends in the front-back direction; the width of the energy absorption box body in the left-right direction is gradually reduced from front to back. According to the energy absorption box structure, the left-right width of the energy absorption box body is gradually reduced from front to back, so that impact force can be stably transmitted along the energy absorption box body, the multiple partition plates are arranged to divide the mounting cavity into the multiple energy absorption cavities, and the impact force absorbs collision energy through the multiple energy absorption cavities; and the reinforcing bracket can enhance the structural strength of the energy absorption box body, so that the force transmission stability of the energy absorption box body is further improved, the collision performance of the vehicle is improved, and the safety of passengers is effectively protected.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and more particularly to an energy-absorbing box structure and a vehicle having the energy-absorbing box structure. Background Technology

[0002] The front bumper beam of a car is located at the very front of the vehicle. Its main function is to transfer the impact energy to the energy-absorbing box through its high-strength structure during a collision. The energy-absorbing box then absorbs the energy through deformation, providing a certain degree of cushioning and protecting the occupants by reducing the extent of vehicle damage. However, existing energy-absorbing boxes have their axis largely aligned with the longitudinal beams, and the aluminum profiles used for extrusion have a fixed thickness. This makes it difficult to effectively transfer the impact force to the longitudinal beams during a collision, resulting in insufficient energy absorption and allowing the impact energy to be transferred to the passenger compartment, causing injury to the occupants. Therefore, there is room for improvement. Summary of the Invention

[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 with high structural strength and multiple force transmission paths, which can improve the energy absorption effect of the energy-absorbing box structure and thus improve the collision performance of vehicles.

[0004] According to an embodiment of the present invention, an energy-absorbing box structure includes: an energy-absorbing box body, wherein the energy-absorbing box body has an installation cavity, and the energy-absorbing box body is provided with a plurality of partition plates, the partition plates dividing the installation cavity into a plurality of energy-absorbing cavities; a reinforcing bracket, the reinforcing bracket being connected to the energy-absorbing box body and extending along the front-to-back direction; wherein the width of the energy-absorbing box body in the left-to-right direction is configured to gradually decrease from front to back.

[0005] According to the energy-absorbing box structure of the present invention, by setting the left and right width of the energy-absorbing box body to gradually decrease from front to back, the impact force can be stably transmitted along the energy-absorbing box body. Moreover, the multiple partition plates provided in the energy-absorbing box body divide the mounting cavity into multiple energy-absorbing chambers, so that the impact force is guided and transmitted along the multiple partition plates and absorbed through the multiple energy-absorbing chambers. Furthermore, the reinforcing bracket can enhance the structural strength of the energy-absorbing box body and further improve the force transmission stability of the energy-absorbing box body, thereby improving the energy absorption effect of the energy-absorbing box structure, so as to improve the collision performance of the vehicle and effectively protect the safety of the occupants.

[0006] According to some embodiments of the energy-absorbing box structure of the present invention, the partition plate includes a plurality of longitudinal partition plates, which are spaced apart and distributed in the mounting cavity along the front-back direction;

[0007] And / or, the partition plate includes a plurality of transverse partition plates, which are spaced apart in the left-right direction and distributed within the mounting cavity.

[0008] According to some embodiments of the present invention, the energy-absorbing box structure includes a front end plate and a rear end plate, the front end plate and the rear end plate are distributed opposite to each other in the front-rear direction, the front end plate and the plurality of longitudinal partition plates are all constructed as arc-shaped plates, and the center of the arc-shaped plate is located on the rear side of the arc-shaped plate.

[0009] According to some embodiments of the present invention, the energy-absorbing box structure includes an inner side plate and an outer side plate, the inner side plate and the outer side plate are distributed opposite to each other in the inward and outward directions, and a plurality of transverse partition plates are distributed in parallel and spaced apart between the inner side plate and the outer side plate. The inner side plate is constructed to extend outward from front to back, and the outer side plate is constructed to extend inward from front to back.

[0010] According to some embodiments of the energy-absorbing box structure of the present invention, the angle between the inner side plate and the front-rear direction is A, where 10°≤A≤20°;

[0011] And / or, the angle between the transverse partition and the front-back direction is B, where 0°≤B≤5°;

[0012] And / or, the angle between the inner side plate and the front-rear direction is C, where 10°≤C≤25°.

[0013] According to some embodiments of the energy-absorbing box structure of the present invention, there are two reinforcing brackets, and the two reinforcing brackets are respectively connected to the upper and lower parts of the energy-absorbing box body, and the reinforcing brackets are inserted into the longitudinal partition plate.

[0014] According to some embodiments of the energy-absorbing box structure of the present invention, the reinforcing bracket includes a main board and a plug-in plate, the plug-in plate is connected to the middle of one side of the main board, and the plug-in plate forms a middle plug-in groove that is plugged into and cooperates with the longitudinal partition plate.

[0015] There are two horizontal partition plates. The main board has connecting flanges on both sides in the inward and outward directions. The two connecting flanges are connected to the two horizontal partition plates one by one. The connecting flanges are provided with side insertion grooves that are inserted and matched with the vertical partition plates.

[0016] According to some embodiments of the energy-absorbing box structure of the present invention, there are two longitudinal partition plates, which divide the mounting cavity from front to back into a first energy-absorbing cavity, a second energy-absorbing cavity, and a third energy-absorbing cavity. The cross-sectional areas of the first energy-absorbing cavity, the second energy-absorbing cavity, and the third energy-absorbing cavity decrease sequentially, and the longitudinal widths of the first energy-absorbing cavity, the second energy-absorbing cavity, and the third energy-absorbing cavity increase sequentially.

[0017] Alternatively, the cross-sectional area of ​​the second energy-absorbing cavity is greater than the cross-sectional area of ​​the first energy-absorbing cavity, and also greater than the cross-sectional area of ​​the third energy-absorbing cavity.

[0018] According to some embodiments of the present invention, the energy-absorbing box structure has a rearwardly protruding inner connecting part and an outer connecting part. Both the inner connecting part and the outer connecting part are adapted to be inserted into the longitudinal beam of the naval cabin. The inner connecting part is adapted to be connected to the inner plate of the longitudinal beam of the naval cabin in the inward and outward direction through an inner connecting member, and the outer connecting part is adapted to be connected to the outer plate of the longitudinal beam of the naval cabin in the inward and outward direction through an outer connecting member.

[0019] The present invention also proposes a vehicle.

[0020] According to an embodiment of the present invention, a vehicle includes a front upper frame of the engine compartment, a front bumper beam assembly, a longitudinal beam of the engine compartment, a front lower bumper beam assembly, and an energy-absorbing box structure provided with any of the above embodiments. The front upper frame of the engine compartment, the front bumper beam assembly, and the front lower bumper beam assembly are spaced apart in the vertical direction, and the front upper frame of the engine compartment and the front bumper beam assembly are connected by a first connecting plate, and the front bumper beam assembly and the front lower bumper beam assembly are connected by a second connecting plate.

[0021] The front bumper beam assembly and the cabin longitudinal beam are connected by the energy-absorbing box structure, and the front bumper beam assembly is provided with a pedestrian protection bracket on the side away from the energy-absorbing box structure, and the pedestrian protection bracket is provided with a crumple zone.

[0022] The vehicle and the energy-absorbing box structure described above have the same advantages over the prior art, which will not be repeated here.

[0023] Additional aspects and advantages of the 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

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a cross-section of the energy-absorbing box structure according to an embodiment of the present invention. Figure 1 ;

[0026] Figure 2 This is a cross-section of the energy-absorbing box structure according to an embodiment of the present invention. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the energy-absorbing box structure according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the assembly of the energy-absorbing box structure according to an embodiment of the present invention.

[0029] Figure label:

[0030] Energy-absorbing box structure 100,

[0031] The energy-absorbing box body 1 includes: mounting cavity 11, energy-absorbing cavity 111, first energy-absorbing cavity 112, second energy-absorbing cavity 113, third energy-absorbing cavity 114, partition plate 12, longitudinal partition plate 121, transverse partition plate 122, front end plate 13, rear end plate 14, inner side plate 15, outer side plate 16, inner connecting part 17, outer connecting part 18, reinforcing bracket 2, main board 21, plug-in plate 22, middle plug-in groove 221, connecting flange 23, side plug-in groove 231, inner connector 3, and outer connector 4.

[0032] The engine compartment has a front upper frame 200, an engine compartment side beam 201, a first connecting plate 202, a front anti-collision beam assembly 300, a pedestrian protection bracket 301, a second connecting plate 302, an engine compartment longitudinal beam 400, an engine compartment longitudinal beam inner plate 401, an engine compartment longitudinal beam outer plate 402, an engine compartment longitudinal beam outer extension plate 403, a front lower anti-collision beam assembly 500, and a front subframe 600. Detailed Implementation

[0033] Embodiments of the present invention 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 the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0036] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0037] The following is for reference. Figures 1-4 The energy-absorbing box structure 100 according to an embodiment of the present invention is described. By setting the left and right width of the energy-absorbing box body 1 to gradually decrease from front to back, the impact force can be stably transmitted along the energy-absorbing box body 1. The multiple partition plates 12 provided inside the energy-absorbing box body 1 divide the mounting cavity 11 into multiple energy-absorbing cavities 111, so that the impact force is guided and transmitted along the multiple partition plates 12 and absorbed through the multiple energy-absorbing cavities 111. The reinforcing bracket 2 can enhance the structural strength of the energy-absorbing box body 1 and further improve the force transmission stability of the energy-absorbing box body 1, thereby improving the energy absorption effect of the energy-absorbing box structure 100 and improving the collision performance of the vehicle.

[0038] like Figures 1-4 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 reinforcing bracket 2.

[0039] The energy-absorbing box body 1 has an installation cavity 11 and is provided with multiple partition plates 12, which divide the installation cavity 11 into multiple energy-absorbing cavities 111.

[0040] Specifically, the energy-absorbing box structure 100 is an important component in vehicle collision safety design. The energy-absorbing box body 1 is the main part of the energy-absorbing box structure 100. An installation cavity 11 is formed within the energy-absorbing box body 1 for installing and fixing other components of the energy-absorbing box structure 100. The installation cavity 11 is a hollow cavity with an open side, which can be open along one of the vertical, front-back, or left-right directions. In this embodiment, the installation cavity 11 is open along the vertical direction. Multiple partition plates 12 are provided on the energy-absorbing box body 1. The partition plates 12 can be distributed in various ways, such as spaced apart or staggered, dividing the installation cavity 11 into multiple energy-absorbing cavities 111 for absorbing and dispersing collision energy. Each energy-absorbing cavity 111 is an independent space. The shape and size of each energy-absorbing cavity 111 can be the same or different, and their arrangement is flexible and can be set according to the actual space size and energy absorption capacity. The number of partition plates 12 can be three, four, etc., and the number of energy-absorbing cavities 111 can be three, four, etc.

[0041] The multiple partition plates 12 can transmit force in multiple directions. Through multiple force transmission paths, the impact energy can be dispersed and transmitted, which can effectively reduce the damage to the energy-absorbing box structure 100 and other structures. The multiple partition plates 12 can be welded to the inner wall of the energy-absorbing box body 1. Setting multiple partition plates 12 can enhance the structural strength of the energy-absorbing box body 1 and increase the stability of force transmission.

[0042] The reinforcing bracket 2 is connected to the energy-absorbing box body 1, and the reinforcing bracket 2 extends along the front-to-back direction.

[0043] Specifically, the reinforcing bracket 2 is used to strengthen the strength of the energy-absorbing box body 1. The reinforcing bracket 2 can be located at both ends of the energy-absorbing box body 1, and the reinforcing bracket 2 can be welded to the energy-absorbing box body 1, or it can be detachably connected by fasteners such as bolts. The reinforcing bracket 2 extends in the front-back direction, which can support the structure of the energy-absorbing box body 1 in the front-back direction, improve the structural strength of the energy-absorbing box body 1 in the front-back direction, and improve the longitudinal force transmission characteristics of the energy-absorbing box structure 100.

[0044] The width of the energy-absorbing box body 1 in the left-right direction gradually decreases from front to back. That is, in the front-back direction, the energy-absorbing box body 1 can be constructed as an inverted trapezoidal structure. The left-right width of the front side of the energy-absorbing box body 1 is larger, which can fully guide the collision energy at the front side of the energy-absorbing box body 1. The left-right width of the energy-absorbing box body 1 gradually decreases from front to back, which improves the continuity of the structure of the energy-absorbing box body 1. The left-right width of the rear side of the energy-absorbing box body 1 is smaller, which is conducive to the installation and cooperation with the rear structure.

[0045] Therefore, after a major collision, the impact force is transmitted from front to rear to the energy-absorbing box body 1. The energy-absorbing box body 1 achieves graded collapse of the impact force, which reduces the energy and speed of the impact force. Finally, it is transmitted to the rear structure such as the engine compartment. The entire collapse process has high stability and good energy absorption effect, which can reduce the damage of the impact force to the vehicle body structure, thereby improving the impact resistance of the front structure of the vehicle and protecting the safety of the passenger compartment.

[0046] According to the embodiment of the present invention, the energy-absorbing box structure 100, by setting the left and right width of the energy-absorbing box body 1 to gradually decrease from front to back, can stably transmit the impact force along the energy-absorbing box body 1. The multiple partition plates 12 provided inside the energy-absorbing box body 1 divide the mounting cavity 11 into multiple energy-absorbing cavities 111, so that the impact force is guided and transmitted along the multiple partition plates 12 and absorbed through the multiple energy-absorbing cavities 111. Furthermore, the reinforcing bracket 2 can enhance the structural strength of the energy-absorbing box body 1, further improving the force transmission stability of the energy-absorbing box body 1, thereby improving the energy absorption effect of the energy-absorbing box structure 100 and improving the collision performance of the vehicle.

[0047] In some embodiments, the partition plate 12 includes a plurality of longitudinal partition plates 121, which are spaced apart in the front-to-back direction within the mounting cavity 11. The longitudinal partition plates 121 can be two, three, or other types. The spacing between the longitudinal partition plates 121 can be the same or different. In practical designs, the longitudinal partition plates 121 can extend in the left-to-right direction, and both ends of the longitudinal partition plates 121 can be connected to the inner wall of the mounting cavity 11. The longitudinal partition plates 121 can be welded to the inner wall of the mounting cavity 11, ensuring a strong and reliable connection between the longitudinal partition plates 121 and the energy-absorbing box body 1. Figure 1 and Figure 3 As shown, there are two longitudinal partition plates 121.

[0048] Furthermore, multiple longitudinal partition plates 121 are spaced apart in the front-to-back direction, which can divide the mounting cavity 11 into multiple energy-absorbing cavities 111 in the front-to-back direction. Each energy-absorbing cavity 111 can independently absorb and disperse the impact force, and achieve multiple energy absorption effects in the front-to-back direction, so as to achieve graded energy absorption and collapse.

[0049] In other embodiments, the partition plate 12 includes multiple transverse partition plates 122, which are spaced apart in the left-right direction within the mounting cavity 11. The transverse partition plates 122 can be two, three, or more, and the spacing between them can be the same or different. In practical designs, the multiple transverse partition plates 122 can extend in the front-back direction, and their ends can be connected to the inner wall of the mounting cavity 11. The multiple transverse partition plates 122 can be welded to the inner wall of the mounting cavity 11, ensuring a strong and reliable connection between the transverse partition plates 122 and the energy-absorbing box body 1. Figure 1 and Figure 3 As shown, there are two horizontal partitions 122.

[0050] Furthermore, multiple transverse partition plates 122 are spaced apart in the left and right directions, which can divide the mounting cavity 11 into multiple energy-absorbing cavities 111 in the left and right directions. Each energy-absorbing cavity 111 can independently absorb and disperse the impact force, and achieve multiple energy absorption effects in the left and right directions, so as to realize multi-channel energy absorption and collapse.

[0051] Therefore, by setting multiple longitudinal partitions 121 spaced apart in the front-to-back direction and multiple transverse partitions 122 spaced apart in the left-to-right direction, the impact force can be more evenly distributed through the longitudinal partitions 121 and transverse partitions 122, reducing the risk of excessive pressure on a single area, thereby protecting the vehicle's critical structure. Furthermore, the multiple energy-absorbing cavities 111 can withstand different levels of force to adapt to collisions of varying strengths.

[0052] In some embodiments, the longitudinal partition 121 and the transverse partition 122 are intersecting. In actual design, the longitudinal partition 121 and the transverse partition 122 can be perpendicularly distributed, or they can intersect but not be perpendicularly distributed. The arrangement is diverse and can be flexibly selected. Figure 3 As shown, the outer periphery of the energy-absorbing box body 1 is a closed structure. Two longitudinal partition plates 121 and two transverse partition plates 122 are simultaneously and intersectingly arranged, which can divide the mounting cavity 11 into nine energy-absorbing cavities 111, forming a grid structure. In this way, after the vehicle is hit by a collision, the impact force can be absorbed and dispersed in multiple directions and multiple energy-absorbing cavities 111 of the energy-absorbing box body 1, ensuring that the impact energy is absorbed in a predetermined manner, reducing intrusion into the passenger compartment, and improving the safety of the occupants.

[0053] Furthermore, the cross-distribution enhances the overall structural strength of the energy-absorbing box body 1, which is beneficial to improving the impact resistance of the energy-absorbing box body 1 and can also improve the force transmission stability of the energy-absorbing box body 1.

[0054] In some embodiments, the energy-absorbing box body 1 includes a front end plate 13 and a rear end plate 14, which are distributed relative to each other in the front-rear direction. Specifically, as shown in the figure... Figure 1 and Figure 3 As shown, the front panel 13 and the rear panel 14 are distributed relative to each other in the front-rear direction. The front panel 13 is located in front of the rear panel 14. During a collision, the impact force is transmitted from the front panel 13 to the rear panel 14. The space between the front panel 13 and the rear panel 14 is used for the installation of multiple longitudinal partitions 121. The front panel 13 is used to connect with structures such as the front anti-collision beam, and the rear of the rear panel 14 is connected with structures such as the cabin longitudinal beam 400.

[0055] The front end plate 13 and the multiple longitudinal partition plates 121 are all constructed as arc-shaped plates, with the center of the arc-shaped plate located on the rear side of the arc-shaped plate, such as... Figure 1 and Figure 3 As shown, multiple arc-shaped plates are arranged from front to back, with the center of each arc-shaped plate located on its rear side. That is, the arc-shaped plates are curved and protruding forward, which can improve the structural strength and impact resistance of the energy-absorbing box body 1. In actual design, multiple arc-shaped plates can be set with the same curvature, which makes the arrangement of the front end plate 13 and multiple longitudinal partition plates 121 simpler and more regular.

[0056] Furthermore, by constructing the front end plate 13 as an arc-shaped plate, the connection area between the front end plate 13 and the front anti-collision beam can be increased, thereby improving the connection strength between the front end plate 13 and the front anti-collision beam. Moreover, by constructing the front end plate 13 and multiple longitudinal partition plates 121 as arc-shaped plates, compared with the straight plate structure, the arc-shaped plates can increase the internal space of the energy-absorbing box body 1, thereby increasing the size of the energy-absorbing cavity 111 and improving the energy absorption effect of the energy-absorbing box body 1. That is, during a collision, the arc-shaped plates can undergo a larger range of bending and deformation, absorbing more collision energy, thereby improving the collision performance of the energy-absorbing box structure 100.

[0057] In some embodiments, the energy-absorbing box body 1 includes an inner side plate 15 and an outer side plate 16, which are distributed opposite to each other in the inward and outward directions, and a plurality of transverse partition plates 122 are distributed in parallel between the inner side plate 15 and the outer side plate 16.

[0058] Specifically, such as Figure 1 and Figure 3As shown, the inner side plate 15 and the outer side plate 16 are distributed relative to each other in the inward and outward directions. The inward and outward directions are along the transverse direction of the vehicle, i.e., the Y direction, with the inner side being the direction closer to the vehicle's centerline and the outer side being the direction away from the vehicle's centerline. The inner side plate 15 is located inside the outer side plate 16. The front end plate 13 and the rear end plate 14 are distributed relative to each other in the front-rear direction. The two ends of the inner side plate 15 and the outer side plate 16 are connected to the front end plate 13 and the rear end plate 14, respectively. This allows the inner side plate 15, the outer side plate 16, the front end plate 13, and the rear end plate 14 to define a mounting cavity 11. The mounting cavity 11 is used for the installation of multiple longitudinal partition plates 121 and multiple transverse partition plates 122. The two ends of the multiple transverse partition plates 122 are supported by the front end plate 13 and the rear end plate 14, respectively, and the two ends of the multiple longitudinal partition plates 121 are supported by the inner side plate 15 and the outer side plate 16, respectively, to improve the overall structural strength of the energy-absorbing box body 1.

[0059] Furthermore, the inner side plate 15 is constructed to extend outward from front to back, and the outer side plate 16 is constructed to extend inward from front to back. In other words, the inner side plate 15 and the outer side plate 16 are set to extend inward from front to back in a relatively close direction, which can form an inverted trapezoidal structure. In actual design, the inclination angles of the inner side plate 15 and the outer side plate 16 can be the same or different, depending on the actual space size and collapse requirements.

[0060] Therefore, the inner side plate 15 and the outer side plate 16 are constructed at an angle, which can form two force transmission paths that guide the force transmission in an inclined manner. The width of the energy absorption box body 1 gradually decreases from front to back, which can fully guide and transmit the impact force through the energy absorption box body 1. The transmission process is stable, thereby improving the overall energy absorption effect.

[0061] In some embodiments, the angle between the inner side panel 15 and the front-rear direction is A, where 10°≤A≤20°, and the front-rear direction is the longitudinal direction of the vehicle. The inner side panel 15 is inclined outward from front to back, that is, the inner side panel 15 intersects with the front-rear direction to form an angle A, and A can be set to 10°, 15°, 17°, 20°, etc. This setting allows the rear end of the inner side panel 15 to be transitionally connected with the rear structure such as the engine compartment longitudinal beam 400, improving the continuity of the two structures. It also allows the front end of the inner side panel 15 to be connected to the front anti-collision beam at a laterally inner position, so that the impact force of the front anti-collision beam at a more inner position can be transmitted to the rear through the inner side panel 15, so as to fully and effectively guide the impact force.

[0062] Specifically, when the angle between the inner side plate 15 and the front-rear direction is within 10°, the inner side plate 15 has no significant supporting function. When the angle between the inner side plate 15 and the front-rear direction is greater than 20°, the inner side plate 15 will interfere with other structures such as the vehicle's front-end cooling module, thus restricting its arrangement. In other words, when the angle between the inner side plate 15 and the front-rear direction is between 10° and 20°, the space at the front of the vehicle can be fully utilized to achieve the maximum energy absorption effect during a vehicle collision. Furthermore, the tilt angle of the inner side plate 15 is set within the above range, forming a floating range, which is beneficial for the processing and manufacturing of the energy absorption box body 1.

[0063] In other embodiments, the angle between the transverse partition 122 and the front-rear direction is B, where 0°≤B≤5°. The transverse partition 122 can be set to be parallel to the front-rear direction, or it can intersect the front-rear direction to form an angle B, where B can be set to 1°, 3°, 5°, etc. The transverse partition 122 can be tilted outward from front to back by a maximum of 5°, or it can be tilted inward from front to back by a maximum of 5°. Both of these settings can achieve the arrangement of the transverse partition 122. With this setting, the angle range of the transverse partition 122 is small, which allows the transverse partition 122 to have a floating setting, making it easier to process and manufacture. In the event of a vehicle collision, the impact force is transmitted backward along the extension direction of the transverse partition 122, thus realizing the force transmission of the transverse partition 122.

[0064] In other embodiments, the angle between the outer side plate 16 and the front-rear direction is C, where 10°≤C≤25°. The outer side plate 16 is inclined inward from front to back, that is, the outer side plate 16 intersects with the front-rear direction to form an angle C. C can be set to 10°, 15°, 17°, 20°, 25°, etc. This setting allows the rear end of the outer side plate 16 to be transitionally connected to the rear structure such as the cabin longitudinal beam 400, improving the continuity of the two structures. It also allows the front end of the outer side plate 16 to be connected to the front anti-collision beam at a slightly outer position in the lateral direction. The impact force from the outermost position of the front anti-collision beam can be transmitted to the rear through the outer side plate 16, achieving sufficient and effective guidance of the impact force.

[0065] Specifically, when the angle between the outer side panel 16 and the front-rear direction is within 10°, the outer side panel 16 provides no significant support. When the angle between the outer side panel 16 and the front-rear direction is 25°, the outer side panel 16 can better cope with small overlap collisions. In other words, when the angle between the outer side panel 16 and the front-rear direction is between 10° and 25°, the space at the front of the vehicle can be fully utilized to achieve maximum energy absorption during a collision. Furthermore, the tilt angle of the outer side panel 16, set within the above range, can form a floating range, which is beneficial for the processing and manufacturing of the energy absorption box body 1.

[0066] Therefore, with the above configuration, the contact area between the front end of the energy-absorbing box body 1 formed by the inner side plate 15 and the outer side plate 16 and the front bumper beam can be increased in the lateral direction of the vehicle, so as to absorb and buffer more impact force through the energy-absorbing box body 1, realize the rapid transmission of impact force, and reduce damage to the front bumper beam and other structures.

[0067] It should be noted that vehicle collisions include frontal collisions and offset collisions. A frontal collision can be a collision from directly in front of the vehicle's direction of travel, while an offset collision can be a collision from the left or right front of the vehicle's direction of travel. In this embodiment, the energy-absorbing box body 1 can absorb energy from both frontal and offset collisions to ensure the safety of the vehicle's structure and personnel.

[0068] Furthermore, the energy-absorbing box structure 100 is provided with an inner side plate 15, two transverse partition plates 122, and an outer side plate 16 in the left and right directions of the vehicle, respectively. In this way, the collision force can be transmitted along four force transmission channels in the front-rear direction. In the case of a full-width frontal collision, the force transmission of the energy-absorbing box structure 100 is as follows: the two transverse partition plates 122 are the main force transmission paths, and the inner side plate 15 and the outer side plate 16 provide diagonal support. In the case of a frontal offset collision (40%), the force transmission of the energy-absorbing box structure 100 is as follows: the two transverse partition plates 122 and the outer side plate 16 are the main force transmission paths, and the inner side plate 15 provides diagonal support. Different collision energy absorption methods can be achieved.

[0069] In some embodiments, there are two reinforcing brackets 2, and the two reinforcing brackets 2 are respectively connected to the upper and lower parts of the energy-absorbing box body 1, and the reinforcing brackets 2 are inserted into the longitudinal partition plate 121.

[0070] Specifically, the mounting cavity 11 inside the energy-absorbing box body 1 is open in the vertical direction, such as... Figure 2 and Figure 3 As shown, two reinforcing brackets 2 are symmetrically distributed on the upper and lower parts of the energy-absorbing box body 1. The reinforcing brackets 2 extend in the front-to-back direction and can be inserted and matched with multiple longitudinal partition plates 121. During installation, the upper and lower reinforcing brackets 2 are inserted and connected to multiple longitudinal partition plates 121 in the up-down direction, which can make the installation position of the reinforcing brackets 2 and the energy-absorbing box body 1 accurate. After the reinforcing brackets 2 are inserted and matched with multiple longitudinal partition plates 121, they can be fixed by welding to ensure the connection strength between the two and make the installation simpler and more convenient.

[0071] Therefore, by setting the reinforcing bracket 2 and the longitudinal partition plate 121 to be inserted and connected, the reinforcing bracket 2 and the multiple longitudinal partition plates 121 can support and connect with each other, so as to improve the strength of the upper and lower parts of the energy absorption box body 1 respectively, and improve the stability of the impact force transmission during collision.

[0072] In some embodiments, the reinforcing bracket 2 includes a main board 21 and a plug-in board 22. The plug-in board 22 is connected to the middle of one side of the main board 21, and the plug-in board 22 has a middle plug-in groove 221 that engages with the longitudinal partition plate 121.

[0073] Specifically, the main board 21 is connected to the plug-in board 22, and the plug-in board 22 can be connected to one side of the main board 21. The plug-in board 22 is located in the middle of the main board 21. The main board 21 and the plug-in board 22 can be vertically distributed. The plug-in board 22 can support the main board 21 and extends vertically. The extension length of the plug-in board 22 can be set to one-quarter of the vertical length of the longitudinal partition plate 121. The plug-in board 22 has a central plug-in groove 221, which extends vertically and opens in the direction away from the main board 21. After the plug-in board 22 is plugged into the longitudinal partition plate 121 through the central plug-in groove 221, the main board 21 is flush with the top of the energy-absorbing box body 1, and the lower reinforcing bracket 2 and the upper reinforcing bracket 2 are symmetrically distributed. In this way, the upper and lower parts of the energy-absorbing box body 1 are flat, making the overall structure neat and the assembly simpler and more convenient.

[0074] Furthermore, multiple central insertion slots 221 can be provided, and multiple central insertion slots 221 are distributed one-to-one with multiple longitudinal partition plates 121 respectively. By connecting multiple central insertion slots 221 with multiple longitudinal partition plates 121 one-to-one, the insertion plate 22 can be relatively fixed to the longitudinal partition plate 121, thereby increasing the structural strength of the insertion plate 22.

[0075] There are two horizontal partition plates 122. The main board 21 has connecting flanges 23 on both sides in the inner and outer directions. The two connecting flanges 23 are connected to the two horizontal partition plates 122 in a one-to-one correspondence. The connecting flanges 23 are provided with side insertion grooves 231 that are inserted and matched with the vertical partition plates 121.

[0076] Specifically, in the lateral direction of the vehicle, the width of the reinforcing bracket 2 can be the same as the width of the energy-absorbing box body 1. Alternatively, the width of the reinforcing bracket 2 can be set to one-third the width of the energy-absorbing box body 1. There are various ways to set it, and it can be selectively set according to actual needs.

[0077] like Figure 2 and Figure 3As shown, in this embodiment, the width of the reinforcing bracket 2 is set to be the same as the spacing between the two horizontal partition plates 122, that is, the width of the main board 21 can be the same as the spacing between the two horizontal partition plates 122. The main board 21 has connecting flanges 23 at both ends in the inward and outward directions. The two connecting flanges 23 are bent and connected to the main board 21, and the two connecting flanges 23 and the plug-in plate 22 are located on the same side of the main board 21. The two connecting flanges 23 and the plug-in plate 22 are distributed parallel to each other, and the extension length of the two connecting flanges 23 is less than the extension length of the plug-in plate 22. The two connecting flanges 23 are used... Each of the two connecting flanges 23 is connected to two transverse partition plates 122 respectively, and each of the two connecting flanges 23 is provided with a side insertion groove 231. The side insertion groove 231 is inserted into the longitudinal partition plate 121, and the side insertion groove 231 has the same structure as the middle insertion groove 221. The extension length of the side insertion groove 231 is less than the extension length of the middle insertion groove 221. There are multiple side insertion grooves 231. In the front-back direction, the multiple side insertion grooves 231 and the multiple middle insertion grooves 221 are in the same extension direction as the longitudinal partition plate 121, which is conducive to the insertion and cooperation of the two.

[0078] Furthermore, during installation, multiple side insertion slots 231 and multiple center insertion slots 221 are respectively inserted into multiple longitudinal partition plates 121 in the vertical direction, and two connecting flanges 23 are attached to two transverse partition plates 122 and can be welded together to improve the connection strength between the reinforcing bracket 2 and the energy-absorbing box body 1.

[0079] Thus, through the above-mentioned arrangement, the two connecting flanges 23 of the reinforced bracket 2 are mutually supported and connected to the two transverse partition plates 122, which can limit the two transverse partition plates 122 in the Y direction. The plug-in plate 22 is mutually supported and connected to multiple longitudinal partition plates 121, so as to improve the strength of the upper and lower parts of the energy-absorbing box body 1 respectively. The plug-in plate 22 can divide the two transverse partition plates 122 into two energy-absorbing cavities 111. The plug-in plate 22 can also serve as a force transmission path, increasing the force transmission path of the energy-absorbing box body 1 and improving the energy absorption effect of the energy-absorbing box structure 100. Furthermore, the energy-absorbing cavity 111 is a closed cavity, which can improve the stability of the impact force transmission during collision.

[0080] In some embodiments, there are two longitudinal partition plates 121, which divide the mounting cavity 11 from front to back into a first energy-absorbing cavity 112, a second energy-absorbing cavity 113, and a third energy-absorbing cavity 114. The cross-sectional areas of the first energy-absorbing cavity 112, the second energy-absorbing cavity 113, and the third energy-absorbing cavity 114 decrease sequentially, and the longitudinal widths of the first energy-absorbing cavity 112, the second energy-absorbing cavity 113, and the third energy-absorbing cavity 114 increase sequentially.

[0081] Specifically, such as Figure 1 and Figure 3As shown, two longitudinal partition plates 121 are distributed sequentially and spaced apart in the front-to-back direction, which can divide the mounting cavity 11 into three energy-absorbing cavities 111, namely the first energy-absorbing cavity 112, the second energy-absorbing cavity 113, and the third energy-absorbing cavity 114. The first energy-absorbing cavity 112 has the largest cross-sectional area, which can absorb as much collision energy as possible and reduce the rearward transmission of collision energy. The second energy-absorbing cavity 113 and the third energy-absorbing cavity 114 have smaller cross-sectional areas. After absorbing part of the collision energy in the first energy-absorbing cavity 112, the collision energy can continue to be absorbed and dispersed in the second energy-absorbing cavity 113 and the third energy-absorbing cavity 114. The cross-sectional area of ​​the three energy-absorbing cavities 111 gradually decreases from front to back. Energy is absorbed in stages through the three energy-absorbing cavities 111, and the energy absorption process is stable and reliable. Furthermore, the cross-sectional area of ​​the three energy-absorbing chambers 111 gradually decreases from front to back. This not only satisfies the energy absorption effect of the energy-absorbing box body 1, but also reduces the damage to the rear structure as the energy transmitted decreases. In addition, the gradually decreasing cross-sectional area reduces the material required for the energy-absorbing box body 1, thereby reducing the installation cost.

[0082] Furthermore, the longitudinal widths of the first energy-absorbing cavity 112, the second energy-absorbing cavity 113, and the third energy-absorbing cavity 114 increase sequentially. In this embodiment, the first energy-absorbing cavity 112 has the largest cross-sectional area, but its longitudinal width is relatively small and can be set to 50mm (±10mm). The second energy-absorbing cavity 113 has the second largest cross-sectional area, but its longitudinal width is relatively large and can be set to 60mm (±10mm). The third energy-absorbing cavity 114 has the smallest cross-sectional area, but its longitudinal width is the largest and can be set to 80mm (±10mm). In this way, after a vehicle collision, the energy-absorbing box 100 can achieve graded collapse and graded deceleration of the impact force from front to back, while maintaining the structural strength of the rear structure, which may ensure collapse stability and effectively improve the vehicle's collision performance.

[0083] The longitudinal width of each energy-absorbing cavity 111 can also be set to other values, not limited to those listed in this embodiment, and can be selectively set according to the actual space size and collapse capability.

[0084] In other embodiments, the cross-sectional area of ​​the second energy-absorbing cavity 113 is larger than the cross-sectional area of ​​the first energy-absorbing cavity 112 and larger than the cross-sectional area of ​​the third energy-absorbing cavity 114.

[0085] Specifically, the second energy-absorbing cavity 113 has the largest cross-sectional area, while the cross-sectional areas of the first energy-absorbing cavity 112 and the third energy-absorbing cavity 114 are both smaller than that of the second energy-absorbing cavity 113. The cross-sectional areas of the first energy-absorbing cavity 112 and the third energy-absorbing cavity 114 can be the same or different. Different configurations can achieve different energy absorption effects, and the configurations of the three energy-absorbing cavities 111 are diverse and can be flexibly selected.

[0086] Therefore, the first energy-absorbing cavity 112 has a smaller cross-sectional area, which can cope with small collisions and avoid excessive deformation. The second energy-absorbing cavity 113 has the largest cross-sectional area, which can absorb as much collision energy as possible and reduce the rearward transmission of collision energy. The third energy-absorbing cavity 114 has a smaller cross-sectional area, which can ensure root stability during the collision process, so as to achieve stable impact force transmission and improve vehicle collision performance.

[0087] In some embodiments, the energy-absorbing box body 1 is provided with a rearwardly protruding inner connecting part 17 and an outer connecting part 18. Both the inner connecting part 17 and the outer connecting part 18 are adapted to be inserted into the cabin longitudinal beam 400. The inner connecting part 17 is adapted to be connected to the inner plate 401 of the cabin longitudinal beam in the inward and outward direction through the inner connecting member 3, and the outer connecting part 18 is adapted to be connected to the outer plate 402 of the cabin longitudinal beam in the inward and outward direction through the outer connecting member 4.

[0088] Specifically, such as Figure 1 and Figure 4 As shown, the rear end of the energy-absorbing box body 1 is connected to the naval longitudinal beam 400. The rear end of the energy-absorbing box body 1 has an inner connecting part 17 and an outer connecting part 18, which are connected to form a complete square structure. The naval longitudinal beam 400 includes a connected inner naval longitudinal beam plate 401 and an outer naval longitudinal beam plate 402. The inner connecting part 17 and the outer connecting part 18 each have multiple connecting holes. The inner naval longitudinal beam plate 401 and the outer naval longitudinal beam plate 402 each have multiple mounting holes. These mounting holes correspond one-to-one with the multiple connecting holes, and the mounting holes and connecting holes are interconnected along the inner and outer directions, allowing for... Nuts are provided on the side walls of the inner connecting part 17 and the outer connecting part 18 near each other. The inner connecting part 3 and the outer connecting part 4 can be constructed as connecting bolts. During installation, the inner connecting part 17 and the outer connecting part 18 are inserted into the nacelle longitudinal beam 400 in the front-rear direction. The inner plate 401 of the nacelle longitudinal beam is connected to the nut of the inner connecting part 17 by multiple connecting bolts in the inside-outside direction. The outer plate 402 of the nacelle longitudinal beam is connected to the nut of the outer connecting part 18 by multiple connecting bolts in the inside-outside direction. Through the insertion fit and bolt connection, the connection between the energy absorption box body 1 and the nacelle longitudinal beam 400 can be made more stable and reliable, which can improve the stability of impact force transmission.

[0089] Furthermore, both the inner panel 401 and the outer panel 402 of the cabin longitudinal beams are equipped with flange structures on their opposite sides, which can provide support during a collision. In the longitudinal direction, the overlap width between the flange structure and the energy-absorbing box structure 100 is at least 10mm to provide significant support. The flange structure also eliminates the need for a front bumper beam mounting plate, reducing weight and meeting lightweight design requirements.

[0090] In actual processing, the inner connecting part 17 and the outer connecting part 18 can be constructed as an integral structure, which can reduce the connection feature settings of the two, reduce the assembly steps, and the integral structure has high structural strength, making the connection between the energy absorption box body 1 and the cabin longitudinal beam 400 more reliable.

[0091] The present invention also proposes a vehicle.

[0092] The vehicle according to an embodiment of the present invention includes a front upper frame 200 of the engine compartment, a front bumper beam assembly 300, a longitudinal beam of the engine compartment 400, a front lower bumper beam assembly 500, and an energy-absorbing box structure 100 provided with any of the above embodiments. The front upper frame 200, the front bumper beam assembly 300, and the front lower bumper beam assembly 500 are spaced apart in the vertical direction, and the front upper frame 200 and the front bumper beam assembly 300 are connected by a first connecting plate 202, and the front bumper beam assembly 300 and the front lower bumper beam assembly 500 are connected by a second connecting plate 302.

[0093] Specifically, such as Figure 4 As shown, in the vertical direction of the vehicle, the front upper frame 200, the front bumper beam assembly 300, and the front lower bumper beam assembly 500 are distributed sequentially from top to bottom. The rear sides of the left and right ends of the front upper frame 200 are connected to the side beams 201 of the engine compartment, the rear sides of the left and right ends of the front bumper beam assembly 300 are connected to the longitudinal beams 400 of the engine compartment, and the rear sides of the left and right ends of the front lower bumper beam assembly 500 are connected to the front subframe 600. The rear ends of the side beams 201 and the longitudinal beams 400 are connected through the front wheel arches, and the rear end of the longitudinal beams 400 is connected to the rear end of the front lower bumper beam assembly 500. In this way, the sequential connection of the above-mentioned multiple structures forms an overall front frame structure of the vehicle, which supports each other and improves the overall structural strength.

[0094] Furthermore, in the left-right direction of the vehicle, the left and right ends of the front upper frame 200 of the engine compartment and the front bumper beam assembly 300 are detachably connected by the first connecting plate 202, which enables the connection between the front upper frame 200 of the engine compartment and the front bumper beam assembly 300 in the vertical direction. The first connecting plate 202 supports the front upper frame 200 of the engine compartment and the front bumper beam assembly 300 respectively, which improves the connection strength of the three. In addition, the left and right ends of the front bumper beam assembly 300 and the front lower bumper beam assembly 500 are detachably connected by the second connecting plate 302, which enables the connection between the front bumper beam assembly 300 and the front lower bumper beam assembly 500 in the vertical direction. The second connecting plate 302 supports the front bumper beam assembly 300 and the front lower bumper beam assembly 500 respectively, which improves the connection strength of the three.

[0095] Furthermore, after a collision at the front of the vehicle, the impact force is divided into three parts: the impact force can be transmitted from the upper front frame 200 of the engine compartment to the side beam 201 of the engine compartment, from the front bumper beam assembly 300 to the longitudinal beam 400 of the engine compartment, and from the lower front bumper beam assembly 500 to the front subframe 600. Thus, through the three force transmission paths in the vertical direction, the impact force can be dispersed and transmitted, improving the vehicle's impact buffering capacity.

[0096] Additionally, it should be noted that the outer side plate 16 of the energy-absorbing box body 1 can be set within the Y-direction boundary of the cabin longitudinal beam extension plate 403 to ensure that the energy-absorbing box structure 100 can obtain full support on both sides of the Y-direction in a collision accident, and that it can collapse stably and reliably.

[0097] The front bumper beam assembly 300 and the cabin longitudinal beam 400 are connected by the energy-absorbing box structure 100, and the front bumper beam assembly 300 is provided with a pedestrian protection bracket 301 on the side away from the energy-absorbing box structure 100. The pedestrian protection bracket 301 is provided with a crumple zone.

[0098] Specifically, there are two energy-absorbing box structures 100, and the left and right ends of the front bumper beam assembly 300 and the two left and right cabin longitudinal beams 400 are connected by one energy-absorbing box structure 100. The front bumper beam assembly 300 can withstand a large amount of collision energy, and the front bumper beam assembly 300 and the cabin longitudinal beams 400 are the main force transmission channels. Through the energy-absorbing box structures 100, the impact force received by the front bumper beam assembly 300 can be effectively absorbed and dispersed, and the impact energy received by the cabin longitudinal beams 400 can be reduced, thereby reducing the damage of the impact force to the rear structure and the passenger compartment. Its force transmission process is more stable and the safety is higher.

[0099] The front bumper beam assembly 300 includes a front bumper beam body, with a pedestrian protection bracket 301 located on the front side of the front bumper beam body. An energy-absorbing box structure 100 is located on the rear side of the front bumper beam assembly 300. The pedestrian protection bracket 301 can be positioned between the front bumper and the front bumper beam assembly 300. The pedestrian protection bracket 301 provides installation and support for the radiator grille. Multiple pedestrian protection brackets 301 are provided, spaced apart along the left-right direction of the front bumper beam assembly 300. Each pedestrian protection bracket 301 has a crumple zone for deformation and crumple. The pedestrian protection bracket 301 can be detachably connected to the front bumper beam assembly 300 using bolts or other fasteners, making assembly convenient and simple. The pedestrian protection bracket 301 can be made of aluminum sheet, while the front bumper beam body and energy-absorbing box structure 100 can be made of aluminum profiles.

[0100] Furthermore, after a vehicle is involved in a collision, the front bumper and pedestrian protection bracket can deform and collapse backward to absorb the impact force of the collision, thereby reducing the force transmitted to pedestrians and reducing the impact on pedestrians' legs, thus reducing the injury to pedestrians.

[0101] 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 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.

[0102] Although embodiments of the 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 invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An energy absorbing box structure, characterized by The energy-absorbing box body is provided with a plurality of partition plates, and the partition plates separate the mounting cavity into a plurality of energy-absorbing cavities. The reinforcing support is connected with the energy-absorbing box body and extends along the front-rear direction. The width of the energy-absorbing box body in the left-right direction is gradually reduced from front to back. The partition plates include a plurality of longitudinal partition plates which are distributed in the mounting cavity and are spaced apart along the front-rear direction.

2. The energy absorbing box structure of claim 1, wherein, The partition plates include a plurality of transverse partition plates which are distributed in the mounting cavity and are spaced apart along the left-right direction. The energy-absorbing box body includes a front end plate and a rear end plate which are oppositely distributed along the front-rear direction, and the front end plate and the longitudinal partition plates are all arc-shaped plates, and the centers of the arc-shaped plates are located on the rear side of the arc-shaped plates.

3. The energy absorbing box structure of claim 2, wherein, The energy-absorbing box body includes an inner side plate and an outer side plate which are oppositely distributed along the inner-outer direction, the transverse partition plates are parallelly and spacedly distributed between the inner side plate and the outer side plate, the inner side plate is inclinedly extended outward from front to back, and the outer side plate is inclinedly extended inward from front to back.

4. The energy absorbing box structure of claim 2, wherein, The angle between the inner side plate and the front-rear direction is A, and 10°≤A≤20°.

5. The energy absorbing box structure of claim 4, wherein, The angle between the transverse partition plate and the front-rear direction is B, and 0°≤B≤5°. The angle between the inner side plate and the front-rear direction is C, and 10°≤C≤25°. The reinforcing support is connected with the energy-absorbing box body and extends along the front-rear direction.

6. The energy absorbing box structure of claim 2, wherein The reinforcing support includes a main plate and a plug-in plate which is connected to the middle of one side of the main plate, and the plug-in plate is formed with a middle plug-in slot which is plug-connected with the longitudinal partition plate.

7. The energy absorbing box structure of claim 6, wherein, The transverse partition plate is two, the two sides of the main plate in the inner-outer direction are both formed with a connecting flange, the two connecting flanges are connected with the two transverse partition plates one by one, and the connecting flange is provided with a side plug-in slot which is plug-connected with the longitudinal partition plate. The longitudinal partition plate is two, and the two longitudinal partition plates sequentially separate the mounting cavity from front to back into a first energy-absorbing cavity, a second energy-absorbing cavity and a third energy-absorbing cavity, the cross-sectional areas of the first energy-absorbing cavity, the second energy-absorbing cavity and the third energy-absorbing cavity are sequentially reduced, and the longitudinal widths of the first energy-absorbing cavity, the second energy-absorbing cavity and the third energy-absorbing cavity are sequentially increased.

8. The energy absorbing box structure of claim 2, wherein, Or, the cross-sectional area of the second energy-absorbing cavity is greater than that of the first energy-absorbing cavity and that of the third energy-absorbing cavity. The energy-absorbing box body is provided with a rear protruding inner connecting part and an outer connecting part which are suitable for being plug-connected into the cabin longitudinal beam, the inner connecting part is suitable for being connected with the inner plate of the cabin longitudinal beam through an inner connecting piece along the inner-outer direction, and the outer connecting part is suitable for being connected with the outer plate of the cabin longitudinal beam through an outer connecting piece along the inner-outer direction.

9. The energy absorbing box structure of claim 1, wherein, ​ 10. A vehicle characterized by comprising: The cabin front upper frame, the front anti-collision beam assembly, the cabin longitudinal beam, the front lower anti-collision beam assembly and the energy absorption box structure are distributed along the up-down direction with intervals, and the cabin front upper frame and the front anti-collision beam assembly are connected through a first connecting plate, and the front anti-collision beam assembly and the front lower anti-collision beam assembly are connected through a second connecting plate. The front anti-collision beam assembly and the cabin longitudinal beam are connected through the energy absorption box structure, and the front anti-collision beam assembly is provided with a pedestrian protection support on the side away from the energy absorption box structure, and the pedestrian protection support is provided with a collapse portion.

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