Energy absorption box, Anti-collision beam structure and vehicle

Abstract

An energy absorption box, an anti-collision beam structure and a vehicle. The energy absorption box (1000) comprises a flat wall (1), a first inclined wall (2), side wall structures (3) and a second inclined wall (4), wherein the first inclined wall (2) is deflected relative to the flat wall (1); the side wall structures (3) are located on the deflecting side of the first inclined wall (2) relative to the flat wall (1); each side wall structure (3) comprises a first crush rib (31); the second inclined wall (4) is connected to the flat wall (1) and the first inclined wall (2) by means of the side wall structures (3); the second inclined wall (4) is deflected relative to the flat wall (1), the deflection direction being the same as the deflection direction of the first inclined wall (2).

Description

Energy absorption box, anti-collision beam structure, mobile carrier

[0001] Related applications

[0002] The present application claims priority to the Chinese patent application with the application number 202410631332.3, the title of which is "Energy absorption box, anti-collision beam structure, mobile carrier", filed on May 21, 2024, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of impact energy absorption protection, in particular to an energy absorption box, an anti-collision beam structure, and a mobile carrier. BACKGROUND

[0004] Mobile carriers such as cars can be subjected to impacts when running or stopping, and energy absorption protection devices can be provided to transfer and absorb energy, reduce the damage of other components, and reduce maintenance costs. In the automotive industry, there are many standardized tests, such as tests on the rear collision of a car.

[0005] The rear anti-collision beam is a safety component of the rear of a car, which is connected to the rear side of the rear longitudinal beam of the car. However, the height of the rear longitudinal beam of different cars from the ground is different, but the height range of the barrier of the test bed is basically stable, and there will be a height difference between the two, which will result in insufficient overlap; in addition, when the car is actually used, for example, if the rear longitudinal beam is high, the collisions that can occur are all other lower objects. This results in a height difference between the rear anti-collision beam and the rear longitudinal beam in order to ensure the height position of the rear anti-collision beam relative to the ground. Such a rear anti-collision beam, when subjected to a collision, will produce an additional torque when the force is transferred to the rear longitudinal beam. This torque can cause the rear anti-collision beam to lose stability; especially it can cause the rear longitudinal beam to bend and deform, thereby increasing the maintenance cost.

[0006] If the stability is improved by strengthening the rear anti-collision beam and the rear longitudinal beam, the weight and manufacturing cost will increase. SUMMARY

[0007] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0008] According to various embodiments of the present application, an energy absorption box, an anti-collision beam structure, and a mobile carrier are provided.

[0009] The application provides an energy absorption box, comprising: a flat wall having a first extension direction and a second extension direction perpendicular to each other; a first inclined wall connected to one end of the flat wall along the first extension direction, the first inclined wall being deflected relative to the flat wall; two side wall structures oppositely arranged along the second extension direction and located on the deflected side of the first inclined wall relative to the flat wall, the side wall structure comprising a first crush rib, the position of the first crush rib along the first extension direction corresponding to the first inclined wall; and a second inclined wall connected to the flat wall and the first inclined wall through the two side wall structures, the second inclined wall being deflected relative to the flat wall and the deflection direction being the same as that of the first inclined wall; the distance between the second inclined wall and the first crush rib being less than the distance between the first inclined wall and the first crush rib.

[0010] The application also provides a crash beam structure, comprising: the aforementioned energy absorption box having a support side and an impact side opposite along the first extension direction, the flat wall corresponding to the support side and the first inclined wall corresponding to the impact side; a crash beam connected to the first inclined wall of the energy absorption box; and a mounting plate connected to the flat wall of the energy absorption box.

[0011] The application also provides a mobile carrier, comprising: a longitudinal beam; and the aforementioned crash beam structure, the mounting plate of the crash beam structure being connected to the longitudinal beam.

[0012] The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the application will be apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF DRAWINGS

[0013] To better describe and illustrate embodiments and / or examples of the inventions disclosed herein, reference can be made to one or more drawings. Additional details or examples used to describe the drawings should not be considered limiting to the scope of any of the disclosed inventions, presently described embodiments and / or examples, and the best mode presently contemplated of these inventions.

[0014] FIG. 1 is a structural schematic diagram of a mobile carrier according to one or more embodiments;

[0015] FIG. 2 is a structural schematic diagram of a crash beam structure according to one or more embodiments;

[0016] FIG. 3 is a structural schematic diagram of an energy absorption box according to one or more embodiments;

[0017] FIG. 4 is a structural schematic diagram of an energy absorption box according to one or more embodiments;

[0018] FIG. 5 is a schematic exploded view of an energy absorption box according to one or more embodiments;

[0019] FIG. 6 is a structural schematic diagram of an upper box body of an energy absorption box according to one or more embodiments;

[0020] Fig. 7 is a structural schematic diagram of a lower box body of an energy absorption box according to one or more embodiments;

[0021] Fig. 8 is a schematic top view of a lower box body of an energy absorption box according to one or more embodiments;

[0022] Fig. 9 is a schematic sectional view at A-A in Fig. 8;

[0023] Fig. 10 is a schematic top view of a crash beam structure according to one or more embodiments;

[0024] Fig. 11 is a schematic sectional view at B-B in Fig. 10;

[0025] Fig. 12 is a schematic front view of a crash beam according to one or more embodiments;

[0026] Fig. 13 is a schematic sectional view at C-C in Fig. 12;

[0027] Fig. 14 is a schematic front view of a mounting plate according to one or more embodiments;

[0028] Fig. 15 is a schematic sectional view at D-D in Fig. 14.

[0029] Legend of reference signs: 1000, energy absorption box; 100, first energy absorption box; 200, second energy absorption box; 1, flat wall; 11, reinforcing rib; 2, first inclined wall; 3, side wall structure; 310, first side wall structure; 320, second side wall structure; 31, first crush rib; 32, second crush rib; 321, first rib segment; 322, second rib segment; 33, fifth crush rib; 4, second inclined wall; 41, third crush rib; 42, fourth crush rib; 421, third rib segment; 422, fourth rib segment; 5, first side wall part; 6, second side wall part; 2000, crash beam structure; 2001, crash beam; 2002, mounting plate; 3000, mobile carrier; 3001, rear longitudinal beam. DETAILED DESCRIPTION

[0030] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways beyond the specific embodiments described and claimed herein, and it is therefore intended that the present application not be limited to the embodiments presented herein but include all embodiments falling within the scope of the present application.

[0031] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0032] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0033] In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. For example, the first side wall structure can also be referred to as the second side wall structure, and the second side wall structure can also be referred to as the first side wall structure. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0034] In the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be flexible connection, or it can be rigid connection in at least one direction; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be directly connected while the intermediate medium exists, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. The terms "installation", "setting", "fixing" and the like can be broadly understood as connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] As used herein, the terms "layer", "region", "plate" refer to a portion of material that includes an area with a thickness. A layer can extend horizontally, vertically, and / or along a tapered surface. A layer can be an area of a uniform or non-uniform continuous structure that has a thickness perpendicular to the direction of extension that can be no greater than the thickness of the continuous structure. A layer can include multiple layers, can be a plurality of layers stacked, or can be a plurality of layers extending discretely. The shapes of the various regions, layers, and their relative sizes and positional relationships to one another in the drawings are merely exemplary and can deviate in practice due to manufacturing tolerances or technical limitations, and can be adjusted in design according to actual needs.

[0036] Referring to FIG. 1, FIG. 1 shows a partial structure of a mobile carrier according to the present application. In an exemplary embodiment, the mobile carrier 3000 can be a car. The mobile carrier 3000 can include a longitudinal beam, such as a front longitudinal beam or a rear longitudinal beam 3001.

[0037] In combination with FIG. 2, FIG. 2 shows a crash beam structure according to an embodiment of the present application. The X-axis direction can be parallel to the length direction of the mobile carrier 3000, and can be parallel to the ground; the Y-axis direction can be parallel to the width direction of the mobile carrier 3000, and can be parallel to the ground; and the Z-axis direction can be parallel to the height direction of the mobile carrier 3000, and can be perpendicular to the ground. In some embodiments, the crash beam structure 2000 is installed on the rear longitudinal beam 3001, which helps to prevent the rear longitudinal beam 3001 from being directly impacted. Specifically, the crash beam structure 2000 can be installed on the rear side of the rear longitudinal beam 3001 along the X-axis direction.

[0038] Exemplarily, the crash beam structure 2000 includes, in sequence from front to back along the X-axis direction, a mounting plate 2002, an energy absorption box 1000, and a crash beam 2001. Referring to FIG. 1, the crash beam 2001 is lower than the rear longitudinal beam 3001 along the Z-axis direction. In other embodiments, the crash beam 2001 is higher than the rear longitudinal beam 3001. The crash beam 2001 can be at a predetermined height position relative to the ground along the Z-axis direction, thereby achieving sufficient overlap with a predetermined height interval, for example, being able to face the wall barrier of a car crash test trolley.

[0039] Referring to FIGS. 3 and 4, the present application provides an energy absorption box 1000. The energy absorption box 1000 can be crushed to absorb collision energy. The energy absorption box 1000 can be considered to have a support side and an impact side opposite along the X-axis direction. Referring to FIG. 1, the front side of the energy absorption box 1000 is the support side, and the rear side is the impact side. The two ends of the energy absorption box 1000 along the X-axis direction are staggered in the Z-axis direction, for example, the impact end is lower than the support end.

[0040] Exemplarily, the energy absorption box 1000 is in the shape of a cylinder extending along the X-axis direction. The energy absorption box 1000 can include a plurality of wall plates arranged in the circumferential direction; the wall plates can include different regions divided along the X-axis direction. Exemplarily, the cross section of the energy absorption box 1000 is substantially rectangular, and can also be circular or other shapes.

[0041] The energy absorption box 1000 includes a flat wall 1, a first inclined wall 2, a side wall structure 3, and a second inclined wall 4. The energy absorption box 1000 can include two side wall structures 3, specifically, a first side wall structure 310 and a second side wall structure 320.

[0042] The flat wall 1 and the first inclined wall 2 can be used to form a top wall structure. The second inclined wall 4 can be used to form a bottom wall structure. In other embodiments, the top wall structure can be referred to as the bottom wall structure.

[0043] The flat wall 1 has a first extension direction and a second extension direction perpendicular to each other. Exemplarily, the flat wall 1 is parallel to the XY plane, the first extension direction is parallel to the X-axis direction, and the second extension direction is parallel to the Y-axis direction; the perpendicular line of the flat wall 1 can be parallel to the Z-axis direction.

[0044] The first inclined wall 2 is connected to one end of the flat wall 1 along the first extension direction, which can be connected to the rear end of the flat wall 1 along the X-axis direction. The first inclined wall 2 is deflected relative to the flat wall 1. The first inclined wall 2 can have an acute angle relative to the XY plane. Exemplarily, the first inclined wall 2 is downwardly deflected relative to the flat wall 1, and the upper side of the first inclined wall 2 can be referred to as the deflected side and the lower side as the deflected side. The first inclined wall 2 can be relatively flat or have a certain curvature. The first inclined wall 2 and the flat wall 1 can be connected smoothly.

[0045] The two side wall structures 3 are oppositely arranged along the second extension direction. The side wall structure 3 can be substantially parallel to the XZ plane. The side wall structure 3 is located on the deflected side of the first inclined wall 2 relative to the flat wall 1, i.e., on the lower side of the first inclined wall 2. The side wall structure 3 is connected to the first inclined wall 2 or the flat wall 1. The side wall structure 3 and the first inclined wall 2 can be at least partially smoothly connected. The connection between the side wall structure 3 and the flat wall 1 can be configured as a concave edge.

[0046] In an exemplary embodiment, the side wall structure 3 includes a first crush rib 31. Both side wall structures 3 include the first crush rib 31. The positions, shapes of the two first crush ribs 31 can be symmetrical. The position of the first crush rib 31 along the first extension direction corresponds to the first inclined wall 2; on the rear side of the flat wall 1. The specific shape, size, and position of the first crush rib 31 can be adjusted as needed. When the energy absorption box 1000 is impacted, the first crush rib 31 can deform to absorb energy, and the whole can be elongated along the Z-axis direction. Exemplarily, the length direction of the first crush rib 31 is parallel to the Z-axis direction.

[0047] The second inclined wall 4 is connected to the flat wall 1 and the first inclined wall 2 through the two side wall structures 3. The second inclined wall 4 is located at the lower side of the side wall structure 3. The second inclined wall 4 is arranged opposite to the flat wall 1 along the Z-axis direction. The second inclined wall 4 is deflected relative to the flat wall 1, and the deflection direction of the second inclined wall 4 is the same as that of the first inclined wall 2. The front end of the second inclined wall 4 is high, and the rear end is low.

[0048] In the example embodiment, the distance between the first crush rib 31 and the second inclined wall 4 is smaller than that between the first crush rib 31 and the first inclined wall 2. The first crush rib 31 can be located at the lower end of the side wall structure 3, close to or connected to the second inclined wall 4, while there is a gap between the first crush rib 31 and the first inclined wall 2. The side wall structure 3 at the gap can be a flat plate structure or a structure with higher strength than the first crush rib 31. By designing the first crush rib 31 closer to the second inclined wall 4 in the side wall structure 3, it is helpful to guide the crushing deformation mode of the energy absorption box 1000.

[0049] When the force along the X-axis direction is transmitted to the lower position of the impact side of the energy absorption box 1000 compared with the support side, the force flow can be transmitted in an upward inclined manner in the energy absorption box 1000, avoiding direct transmission in a manner parallel to the X-axis direction; and then when transmitted to the support side, it can be transmitted to the middle position of the second inclined wall 4 and the flat wall 1. The moment in the XZ plane at the flat wall 1 is small.

[0050] By combining the flat wall 1 and the first inclined wall 2, a structure different from the second inclined wall 4 is realized, which is helpful to guide the force flow. Also by setting the side wall structure 3, the energy absorption box 1000 is stable when deformed, and the force transmitted through the energy absorption box 1000 is small.

[0051] The energy absorption box 1000 of the present application has a certain stiffness to maintain its shape. The energy absorption box 1000 can absorb collision energy through its crushing deformation after being subjected to a collision. In addition, the energy absorption box 1000 can have the effect of small size and light weight.

[0052] In some embodiments, the second inclined wall 4 is parallel to the first inclined wall 2. The size of the cavity of the energy absorption box 1000 can be as large as possible to increase the stiffness of the energy absorption box 1000; which is helpful for the energy absorption box 1000 to deform stably, absorb energy and transmit force flow to the longitudinal beam when subjected to a collision.

[0053] In some embodiments, the side wall structure 3 further comprises a second crush rib 32. The second crush rib 32 is located on the side of the first crush rib 31 along the X-axis direction, which is towards the flat wall 1. The second crush rib 32 is located on the front side of the first crush rib 31. The second crush rib 32 and the first crush rib 31 can be spaced apart; the distance between them can be less than the width of the first crush rib 31. The second crush rib 32 is longer than the first crush rib 31. Exemplarily, the upper end of the second crush rib 32 along the Z-axis direction is higher than the upper end of the first crush rib 31. Exemplarily, the lower end of the second crush rib 32 can be higher than the lower end of the first crush rib 31. The second crush rib 32 is beneficial to guide the uniform deformation of the energy absorption box 1000 and avoid instability.

[0054] In some embodiments, the second crush rib 32 is spaced apart from the first inclined wall 2, which is beneficial to avoid rapid deformation when impacted and affect the energy absorption effect. The second crush rib 32 can extend downward to the second inclined wall 4.

[0055] Exemplarily, the distance between the second crush rib 32 and the second inclined wall 4 is less than the distance between the second crush rib 32 and the first inclined wall 2. The lower end of the second crush rib 32 can be lower than the upper end of the first crush rib 31. The second crush rib 32 can be parallel to the first crush rib 31, and the end points of the two form a trapezoid, with the two as the lower base and the upper base; the two legs of the trapezoid converge towards the impact side. The combination of multiple crush ribs of the side wall structure 3 is beneficial to guide the transmission of force flow.

[0056] Optionally, the crush ribs of the energy absorption box 1000 can be protrusions or recesses. For example, the first crush rib 31 is recessed into the plane of the side wall structure 3. In other embodiments, for example, the second crush rib 32 protrudes from the plane of the side wall structure 3.

[0057] Referring to FIGS. 5, 6 and 7. In some embodiments, the side wall structure 3 comprises a first side wall part 5 and a second side wall part 6. The first side wall part 5 is integrally connected with the first inclined wall 2; the second side wall part 6 is integrally connected with the second inclined wall 4. The first side wall part 5 and the second side wall part 6 are spliced and then fixedly connected to form the side wall structure 3.

[0058] Exemplarily, in combination with FIG. 6, the upper box body of the energy absorption box can be an integral structure, for example, a sheet metal structure. The upper box body of the energy absorption box comprises the flat wall 1, the first inclined wall 2 and two first side wall parts 5. The upper box body of the energy absorption box can be a U-shaped structure.

[0059] Exemplarily, in combination with FIG. 7, the lower box body of the energy absorption box can be an integral structure, for example, a sheet metal structure. The lower box body of the energy absorption box comprises the second inclined wall 4 and two second side wall parts 6. The upper box body of the energy absorption box can be a U-shaped structure.

[0060] The energy absorption box 1000 can include an upper box body and a lower box body, and the energy absorption box 1000 is convenient to manufacture. In other embodiments, the cross section of the energy absorption box 1000 relative to the X-axis direction can be a one-piece structure, a C-shaped structure, two left and right opposite U-shaped structures, etc.

[0061] In some embodiments, the first crush rib 31 is arranged on the second side wall portion 6. The first crush rib 31 can be arranged only on the second side wall portion 6. Exemplarily, different portions of the second crush rib 32 are arranged on the first side wall portion 5 and the second side wall portion 6, respectively. For example, the second crush rib 32 includes a first rib segment 321 and a second rib segment 322, the first rib segment 321 is arranged on the first side wall portion 5, and the second rib segment 322 is arranged on the second side wall portion 6. The deformation of the energy absorption box 1000 can be guided, and the energy absorption effect can be ensured.

[0062] Exemplarily, the second rib segment 322 of the second crush rib 32 penetrates the second side wall portion 6, and the first rib segment 321 extends to the lower end of the first side wall portion 5, and the upper end is arranged in a spaced manner with the first inclined wall 2. In the side wall structure 3, the first rib segment 321 and the second rib segment 322 can partially overlap to form the second crush rib 32. The upper end of the first crush rib 31 can be arranged in a spaced manner with the upper end of the second side wall portion 6. Exemplarily, the first crush rib 31 extends to the middle position of the side wall structure 3, which helps to guide the deformation and ensures that the energy absorption box 1000 does not lose stability.

[0063] Referring to FIGS. 5 and 7, in some embodiments, the second inclined wall 4 or the bottom wall structure includes a third crush rib 41. Exemplarily, the third crush rib 41 is connected to the second crush rib 32. The second crush rib 32 extends downward to the second inclined wall 4. It is beneficial to guide the deformation of the energy absorption box 1000 and reduce the moment. The second crush rib 32 can be a recessed structure including a bottom surface at a deeper position and a side surface with a certain slope. The connection between the second crush rib 32 and the third crush rib 41 can be at the side surface, forming a non-planar transition. Exemplarily, along the X-axis direction, the second crush rib 32 and the third crush rib 41 can be staggered, and the third crush rib 41 can be located on the rear side of the second crush rib 32.

[0064] In some embodiments, the second inclined wall 4 includes a fourth crush rib 42. Exemplarily, the fourth crush rib 42 is connected to the first crush rib 31. It is beneficial to guide the deformation of the energy absorption box 1000 and reduce the moment. The fourth crush rib 42 can be a recessed structure. Exemplarily, along the X-axis direction, the fourth crush rib 42 can be located on the front side of the first crush rib 31.

[0065] Exemplarily, the fourth crush rib 42 includes two segments separated along the second extending direction, which is conducive to ensuring the deformation stability of the energy absorption box 1000 and conducive to ensuring the energy absorption effect. The fourth crush rib 42 can include a third rib segment 421 and a fourth rib segment 422, the third rib segment 421 can be connected to the first side wall structure 310, and the fourth rib segment 422 can be connected to the second side wall structure 320. The third rib segment 421 and the fourth rib segment 422 can be symmetrically arranged, and the symmetry plane is parallel to the XZ plane. The second inclined wall 4 can be provided with a through hole at a portion between the third rib segment 421 and the fourth rib segment 422.

[0066] In combination with FIG. 5, exemplarily, the side wall structure 3 and the second inclined wall 4 protrude from the first inclined wall 2 along the first extending direction, which is conducive to connecting the side wall structure 3 to the crash beam 2001 and conducive to energy absorption. Exemplarily, the second side wall structure 320 protrudes backward more than the first side wall structure 310.

[0067] Referring to FIGS. 4 and 7, the energy absorption box 1000 further includes a fifth crush rib 33. The fifth crush rib 33 can be located at the second side wall structure 320 and located at the rear side of the first crush rib 31. The fifth crush rib 33 can be located at the protruding portion of the second side wall structure 320 compared with the first side wall structure 310. The fifth crush rib 33 is shorter than the first crush rib 31; the fifth crush rib 33 can be connected to the second inclined wall 4, and the upper end thereof is lower than the upper end of the first crush rib 31.

[0068] Exemplarily, the energy absorption box 1000 includes other crush ribs. Each crush rib can be located at the rear side of the second crush rib 32. Each crush rib can correspond to the position of the first inclined wall 2 along the X-axis direction, and no protruding or recessed crush rib can be arranged at the flat wall 1. The energy absorption box 1000 can uniformly deform when deformed and can not produce instability phenomenon.

[0069] Exemplarily, the portion of the first inclined wall 2 corresponding to the first crush rib 31 is a flat segment, which can absorb energy and ensure the weakening of the moment. The first inclined wall 2 can be provided with a through hole.

[0070] In some embodiments, the flat wall 1 includes a reinforcing rib 11, which can transmit the remaining force flow after the energy absorption box 1000 is deformed. The reinforcing rib 11 extends along the first extending direction, for example, can have a circular rectangular profile with the length direction along the X-axis direction and the width direction along the Y-axis direction. Exemplarily, the reinforcing rib 11 can partially extend into the first inclined wall 2. The flat wall 1 can include two reinforcing ribs 11, which are spaced apart and can be symmetrically arranged.

[0071] Exemplarily, the portion of the second inclined wall 4 corresponding to the flat wall 1 includes another reinforcing rib 11. For example, two reinforcing ribs 11 are arranged along the Y-axis direction and symmetrically arranged.

[0072] Referring to FIG. 8 and FIG. 9, the second inclined wall 4 is deflected downward as a whole relative to the X axis, and the positions thereof are not completely flat. A plurality of process structures can be provided. The two ends of the second inclined wall 4, the lower surface protrusions or the upper surface protrusions can have a trend of being higher in front and lower in back.

[0073] In combination with FIG. 10 and FIG. 11, the present application further provides a crash beam structure 2000. The crash beam structure 2000 comprises a crash beam 2001, an energy absorption box 1000 and a mounting plate 2002.

[0074] The energy absorption box 1000 has a support side and an impact side opposite in the first extension direction. The flat wall 1 corresponds to the support side, and the first inclined wall 2 corresponds to the impact side. The crash beam 2001 is connected to the first inclined wall 2 of the energy absorption box 1000. The mounting plate 2002 is connected to the flat wall 1 of the energy absorption box 1000.

[0075] In the crash beam structure 2000 of the present application, the mounting plate 2002 is used to be mounted to an external structure. The crash beam 2001 can receive a collision at a predetermined height position, can absorb collision energy, and can weaken the moment at the mounting plate 2002, and can transmit the remaining force flow from the mounting plate 2002 to the external structure. The crash beam structure 2000 can absorb energy and transmit force stably.

[0076] In combination with FIG. 12 and FIG. 13, the crash beam 2001 has a longitudinal shape in the Y axis direction. The cross-sectional shape of the crash beam in the Y axis direction comprises a wave-shaped structure. A part of the crash beam 2001 can be lapped on the side wall structure 3, which can ensure the strength and transmit the force.

[0077] Exemplarily, each component of the crash beam structure 2000 can be a sheet metal part, which can be welded by using carbon dioxide shielded welding. Alternatively, laser welding or friction welding can also be used. The crash beam 2001 and the energy absorption box 1000 can respectively comprise a flange or a protrusion, so as to realize the connection. The upper flange of the crash beam 2001 can be lapped and welded with the flange at the rear end of the first inclined wall 2, and the lower part of the crash beam 2001 can be lapped and welded with the protrusion of the second inclined wall 4.

[0078] Referring to FIG. 2, FIG. 5 and FIG. 10, the crash beam 2001 can comprise a part inclined relative to the Y axis direction. The crash beam structure 2000 can comprise a first energy absorption box 100 on the left side and a second energy absorption box 200 on the right side. The energy absorption box 1000 shown in FIG. 5 can be the first energy absorption box 100, the lengths of the two side wall structures 3 thereof are different, so as to be butted against the crash beam 2001. Exemplarily, the structure of the second energy absorption box 200 can be symmetrical to the first energy absorption box 100.

[0079] Referring to FIG. 14 and FIG. 15, the anti-collision beam 2001 comprises two corresponding installation plates 2002, which can be identical. The installation plate 2002 can be a frame structure, and the frame hole thereof corresponds to the cavity of the energy absorption box 1000. The installation plate 2002 can be substantially parallel to the YZ plane, and a mounting hole can be provided outside the energy absorption box 1000.

[0080] Referring to FIG. 1 and FIG. 2, the mobile carrier 3000 of the present application comprises a longitudinal beam and the aforementioned anti-collision beam structure 2000. The installation plate 2002 of the anti-collision beam structure 2000 is connected to the longitudinal beam. Exemplarily, the longitudinal beam is a rear longitudinal beam 3001, and a connecting seat is provided on the rear longitudinal beam 3001 to connect and fix the installation plate 2002. The anti-collision beam structure 2000 can be a rear anti-collision beam structure, and the collision requirement thereof is lower than that of a front anti-collision beam structure.

[0081] The distance of the rear longitudinal beam 3001 from the ground along the Z-axis direction can be relatively high, and then the impact end of the energy absorption box 1000 is arranged lower than the support end, i.e., the rear end is low; and the position of the anti-collision beam 2001 is lower than that of the installation plate 2002. The installation plate 2002 can be arranged directly opposite to the rear longitudinal beam 3001, and the position of the anti-collision beam 2001 is lower than that of the rear longitudinal beam 3001. In other embodiments, the energy absorption box 1000 can be arranged with the support end low and the impact end high.

[0082] The mobile carrier 3000 of the embodiment of the present application can achieve the following effects: the mobile carrier 3000 can meet the predetermined collision position, the collision force of the anti-collision beam 2001 along the X-axis direction can be transmitted obliquely upward along the energy absorption box 1000 and be absorbed by the energy absorption box 1000; the installation plate 2002 can transmit the force flow to the rear longitudinal beam 3001 along the X-axis direction. The force and the moment of force of the rear longitudinal beam 3001 are small, and the rear longitudinal beam 3001 is not easy to bend, which is beneficial to ensure that the rear longitudinal beam 3001 can maintain a good shape after the collision, so as to reduce the maintenance cost after the collision. In addition, the anti-collision beam structure 2000 is small in size and light in structure; and the mobile carrier 3000 is light in structure, which is beneficial to the low-cost use of the mobile carrier 3000.

[0083] The technical features of the above-described embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0084] The above-described embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An energy absorption box comprising: a flat wall having a first extension direction and a second extension direction perpendicular to each other; a first inclined wall connected to one end of the flat wall along the first extension direction, the first inclined wall being deflected relative to the flat wall; two side wall structures oppositely arranged along the second extension direction and located on the deflected side of the first inclined wall relative to the flat wall, the side wall structures comprising a first crush rib, the first crush rib being located at a position corresponding to the first inclined wall along the first extension direction; and a second inclined wall connected to the flat wall and the first inclined wall through the two side wall structures, the second inclined wall being deflected relative to the flat wall and having a deflection direction identical to that of the first inclined wall, the second inclined wall being located at a distance from the first crush rib smaller than that of the first inclined wall. The second inclined wall is parallel to the first inclined wall, and the first crush rib is perpendicular to the flat wall.

2. The energy absorbing box of claim 1, wherein, The side wall structures further comprise a second crush rib located on a side of the first crush rib facing the flat wall, the second crush rib being longer than the first crush rib.

3. The energy absorbing box of claim 1, wherein, The side wall structures comprise a first side wall part integrally connected to the first inclined wall and a second side wall part integrally connected to the second inclined wall.

4. The energy absorbing box of claim 3 wherein, The first crush rib is provided on the second side wall part. Different portions of the second crush rib are provided on the first side wall part and the second side wall part, respectively. The second inclined wall comprises a third crush rib connected to the second crush rib and a fourth crush rib connected to the first crush rib.

5. The energy absorbing box of claim 4 wherein, The fourth crush rib comprises two segments separated along the second extension direction.

6. The energy absorbing box of claim 5 wherein, The second crush rib is spaced apart from the first inclined wall.

7. The energy absorbing box of claim 3 wherein, The side wall structures and the second inclined wall protrude from the first inclined wall along the first extension direction. The flat wall comprises a reinforcing rib extending along the first extension direction.

8. The energy absorbing box of any of claims 1-7, wherein, The first inclined wall has a flat section corresponding to the first crush rib.

9. A crash beam structure comprising: the energy absorption box according to any one of claims 1 to 8, having a support side and an impact side opposite to each other along the first extension direction, the flat wall corresponding to the support side and the first inclined wall corresponding to the impact side; a crash beam connected to the first inclined wall of the energy absorption box; and a mounting plate connected to the flat wall of the energy absorption box.

10. A mobile vehicle comprising: a longitudinal beam; and the crash beam structure according to claim 9, the mounting plate of the crash beam structure being connected to the longitudinal beam. ​ ​ ​

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