Vehicle and energy absorption structure

Abstract

The invention relates to the technical field of vehicle production and manufacturing, in particular to a vehicle and an energy absorption structure. The bumper extends in the first direction, the bumper and the connecting panel are opposite in the second direction and arranged at intervals to form an installation space of the energy absorption structure, and the energy absorption structure is arranged between the outer shell and the bumper in the second direction and located in the installation space. The supporting part comprises a contact surface, a connecting surface and a force guiding surface, the contact surface and the connecting surface are oppositely arranged in the second direction, the contact surface abuts against the connecting panel, the energy absorption part abuts between the connecting surface and the bumper, and the force guiding surface is connected with the contact surface and the connecting surface; due to the fact that the height of the force guiding face is gradually reduced from the side close to the contact face to the side close to the connecting face, the force guiding face is the inclined face, when the contact face is subjected to external force of collision, the external force is obliquely transmitted to the energy absorption part along the inclined face, the energy absorption part deforms to absorb collision energy, and hurt to pedestrians is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle production and manufacturing, and in particular to a vehicle and an energy absorbing structure. Background Art

[0002] In recent years, the automobile industry has developed rapidly and the number of cars in use has increased rapidly. In terms of vehicle safety performance, people are no longer only concerned with the protection of passengers inside the car, but also with the protection of pedestrians outside the car.

[0003] In the collision condition of the vehicle, the collision energy is mainly absorbed by the outer shell and the bumper of the vehicle. Although the outer shell has a good energy absorption effect in the low-speed collision condition, its energy absorption effect on the protection of pedestrians' legs is also limited. In addition, the bumper needs to support the vehicle in the low-speed collision condition, so the bumper also needs to have good rigidity. Therefore, in the collision condition between the vehicle and the pedestrian, the outer shell and the bumper will cause serious damage to the legs of the pedestrian. Therefore, how to design an energy absorption structure with good protection for the legs based on the existing bumper and outer shell is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The purpose of this application is to provide a vehicle and an energy absorbing structure.

[0005] The present application provides a vehicle, comprising: an outer shell including a connection panel; a bumper extending along a first direction, the bumper being opposite to and spaced from the connection panel in a second direction, the first direction and the second direction being perpendicular; an energy absorbing structure arranged between the outer shell and the bumper in the second direction, the energy absorbing structure comprising a supporting portion and an energy absorbing portion, the supporting portion extending along the first direction, the supporting portion comprising a contact surface, a connection surface and a force guiding surface, the contact surface and the connection surface being arranged opposite to each other in the second direction, the contact surface abutting against the connection panel, the energy absorbing portion abutting between the connection surface and the bumper, the force guiding surface connecting the contact surface and the connection surface, and the force guiding surface gradually decreasing from a height close to the contact surface side to a height close to the connection surface side.

[0006] In an exemplary embodiment of the present application, the energy absorbing part includes a plurality of energy absorbing bodies spaced apart along the first direction, the energy absorbing bodies forming a groove, the notch of the groove is opened in a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0007] In an exemplary embodiment of the present application, the bottom wall width of the groove is smaller than the slot opening width, and the side wall of the groove is inclined from the slot opening to the bottom wall.

[0008] In an exemplary embodiment of the present application, the side wall of the groove is inclined from the notch towards the bottom wall to form a breakable portion at the connection between the side wall and the bottom wall of the groove, and the breakable portion is configured to bend when the energy absorption portion receives a force in the second direction.

[0009] In an exemplary embodiment of the present application, the energy absorption portion includes two protruding portions. The two protruding portions are located on both sides of the groove in the second direction. One protruding portion is connected to the connection surface, and the other protruding portion abuts against the bumper.

[0010] In an exemplary embodiment of the present application, the force guiding surface is inclined from the side close to the contact surface towards the side close to the connection surface, and the angle between the force guiding surface and the second direction is between 5° and 10°.

[0011] In an exemplary embodiment of the present application, the support portion includes a force receiving portion and a connecting portion. In the third direction, the height of the force receiving portion is greater than the height of the connecting portion. The connecting portion is connected between the force receiving portion and the energy absorption portion. The side of the force receiving portion facing away from the connecting portion forms the contact surface, and the side of the connecting portion facing away from the force receiving portion forms the connection surface. In the third direction, the connecting portion forms the force guiding surface. The first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0012] In an exemplary embodiment of the present application, the force receiving portion includes a force receiving main body and force receiving ribs. The force receiving ribs are provided on the force receiving main body. The force receiving ribs protrude towards the connection panel, and the force receiving ribs abut against the connection panel.

[0013] In an exemplary embodiment of the present application, the energy absorption structure further includes two clamping portions. In the second direction, the two clamping portions are provided on both sides of the support portion. In the third direction, the two clamping portions extend in opposite directions. The clamping portion has a clamping opening, and the clamping opening is clamped to the bumper. The first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0014] The present application also provides an energy absorption structure, which is arranged between the outer casing and the bumper. Wherein, the bumper extends along a first direction, the bumper is opposite to and spaced from the outer casing in a second direction, the first direction and the second direction are perpendicular. The energy absorption structure includes a support portion and an energy absorption portion. The support portion extends along the first direction. The support portion includes a contact surface, a connection surface and a force guiding surface. The contact surface and the connection surface are arranged opposite to each other in the second direction. The contact surface abuts against the outer casing. The energy absorption portion abuts between the connection surface and the bumper. The force guiding surface connects the contact surface and the connection surface. The height of the force guiding surface gradually decreases from the height on the side close to the contact surface to the height on the side close to the connection surface.

[0015] A vehicle and an energy absorption structure according to the solution of the present application have the following beneficial effects: The bumper extends along the first direction. The bumper is opposite to and spaced from the connection panel in the second direction to form an installation space for the energy absorption structure. The energy absorption structure is arranged between the outer casing and the bumper in the second direction and is located in the installation space. The support portion of the energy absorption structure plays a supporting role for the connection panel and is also the main force-bearing part in the vehicle-pedestrian collision condition, so as to support the leg through the energy absorption structure in the pedestrian-vehicle collision and prevent the leg from directly contacting the bumper. The support portion includes a contact surface, a connection surface and a force guiding surface. The contact surface and the connection surface are arranged opposite to each other in the second direction. The contact surface abuts against the connection panel. The energy absorption portion abuts between the connection surface and the bumper. The force guiding surface connects the contact surface and the connection surface. Since the height of the force guiding surface gradually decreases from the height on the side close to the contact surface to the height on the side close to the connection surface, the force guiding surface is an inclined surface. When an external force of collision is applied to the contact surface, the external force is inclined and transmitted to the energy absorption portion along the inclined surface, and the collision energy is absorbed through the deformation of the energy absorption portion, thereby reducing the injury to the pedestrian.

[0016] Other features and advantages of the present application will become apparent through the following detailed description, or will be partially learned through the practice of the present application.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic structural diagram of a vehicle in an embodiment of the present invention;

[0020] Figure 2 is a front schematic view of the energy absorption structure in the embodiment of the present invention;

[0021] Figure 3 is Figure 2 a schematic cross-sectional view taken along line A-A in;

[0022] Figure 4 is Figure 3 an enlarged schematic view of position A in;

[0023] Figure 5 is Figure 1 an enlarged schematic view of position B in.

[0024] Explanation of reference numerals:

[0025] 100, outer housing; 110, connecting panel; 200, bumper; 300, energy absorption structure; 310, support part; 311, contact surface; 312, connecting surface; 313, force guiding surface; 314, force receiving part; 3141, force receiving main body; 3142, force receiving rib; 315, connecting part; 320, energy absorption part; 321, energy absorption body; 322, groove; 323, notch; 324, side wall; 325, bottom wall; 326, easily breakable part; 327, protruding part; 3271, first protruding part; 3272, second protruding part; 330, clamping part; 331, clamping opening; X, first direction; Y, second direction; Z, third direction. Detailed implementation manners

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art.

[0027] In addition, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of this application. However, those skilled in the art will realize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be used. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of this application.

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0029] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0030] In recent years, the automobile industry has developed rapidly and the number of cars in use has increased rapidly. In terms of vehicle safety performance, people are no longer only concerned with the protection of passengers inside the car, but also with the protection of pedestrians outside the car.

[0031] In the collision condition of the vehicle, the collision energy is mainly absorbed by the outer shell and the bumper of the vehicle. Although the outer shell has a good energy absorption effect in the low-speed collision condition, its energy absorption effect on the protection of pedestrians' legs is also limited. In addition, the bumper needs to support the vehicle in the low-speed collision condition, so the bumper also needs to have good rigidity. Therefore, in the collision condition between the vehicle and the pedestrian, the outer shell and the bumper will cause serious damage to the legs of the pedestrian. Therefore, how to design an energy absorption structure with good protection for the legs based on the existing bumper and outer shell is a technical problem that needs to be solved urgently.

[0032] In order to solve the above technical problems, refer to Figure 1 and Figure 2As shown in the figure, the present application provides a vehicle, which includes an outer housing 100, a bumper 200 and an energy absorption structure 300. The outer housing 100 includes a connection panel 110. The bumper 200 extends along the first direction X. The bumper 200 is opposite to and spaced from the connection panel 110 in the second direction Y. The first direction X and the second direction Y are perpendicular. The energy absorption structure 300 is disposed between the outer housing 100 and the bumper 200 in the second direction Y. The energy absorption structure 300 includes a support portion 310 and an energy absorption portion 320. The support portion 310 extends along the first direction X. The support portion 310 includes a contact surface 311, a connection surface 312 and a force guiding surface 313. The contact surface 311 and the connection surface 312 are arranged opposite to each other in the second direction Y. The contact surface 311 abuts against the connection panel 110. The energy absorption portion 320 abuts between the connection surface 312 and the bumper 200. The force guiding surface 313 connects the contact surface 311 and the connection surface 312. The height of the force guiding surface 313 gradually decreases from the side close to the contact surface 311 to the side close to the connection surface 312. Thus, the bumper 200 extends along the first direction X. The bumper 200 is opposite to and spaced from the connection panel 110 in the second direction Y to form an installation space for the energy absorption structure 300. The energy absorption structure 300 is disposed between the outer housing 100 and the bumper 200 in the second direction Y within the installation space. The support portion 310 of the energy absorption structure 300 plays a supporting role for the connection panel 110 and is also the main force-bearing position 314 in the vehicle-pedestrian collision condition, so as to support the leg through the energy absorption structure 300 during the collision between the pedestrian and the vehicle, so that the leg will not directly contact the bumper 200. The support portion 310 includes a contact surface 311, a connection surface 312 and a force guiding surface 313. The contact surface 311 and the connection surface 312 are arranged opposite to each other in the second direction Y. The contact surface 311 abuts against the connection panel 110. The energy absorption portion 320 abuts between the connection surface 312 and the bumper 200. The force guiding surface 313 connects the contact surface 311 and the connection surface 312. Since the height of the force guiding surface 313 gradually decreases from the side close to the contact surface 311 to the side close to the connection surface 312, the force guiding surface 313 is an inclined surface. When an external force of collision acts on the contact surface 311, the external force is inclined and transmitted to the energy absorption portion 320 along the inclined surface, and the energy absorption portion 320 deforms to absorb the collision energy, thereby reducing the injury to the pedestrian.

[0033] In some embodiments, with reference to the direction from the vehicle engine compartment to the trunk, the first direction X is the left-right direction of the vehicle, the second direction Y is the front-rear direction of the vehicle, and the third direction Z is the up-down direction of the vehicle.

[0034] In some embodiments, the outer housing 100 is a sheet metal structure. The connection panel 110 is a part of the outer housing 100. The connection panel 110 can be a region divided on the outer housing 100 or an external structure provided on the outer housing 100, and the connection panel 110 is also a sheet metal structure.

[0035] In some embodiments, the bumper is made of a rigid material with good stiffness conditions, which can reduce the damage degree of the vehicle's front engine compartment. In the dynamic impact test, the bumper 200 needs to have a maximum deformation less than or equal to 50 mm and no functional damage in a 4 km / h frontal collision. In the static load test, a force equivalent to 10% of the vehicle's mass is applied, such as 150 kg for a 1.5-ton vehicle, and the dent depth is less than or equal to 30 mm. The surface hardness of the bumper 200 needs to be less than or equal to R100, and the bending moment of the energy absorption structure 300 to reduce the risk of pedestrian leg injury is less than or equal to 7.5 kN·m.

[0036] In some embodiments, the energy absorption structure 300 includes at least one of plastic material and foam material, which has a certain supporting effect and a good energy absorption effect. The energy absorption structure 300 is set according to material properties, energy absorption efficiency, collision response characteristics, and cooperation with other components. Specifically, the foam density is between 50 kg / m 3 and 150 kg / m 3 , the platform stress is between 2 MPa and 5 MPa, and the energy absorption rate is between 6 MJ / m 3 and 10 MJ / m 3 .

[0037] In some embodiments, during the collision between the vehicle and the pedestrian, the pedestrian's leg first contacts the vehicle outer shell 100. The force on the vehicle outer shell 100 is transmitted to the energy absorption structure 300 via the connection panel 110. On the energy absorption structure 300, the energy is sequentially transmitted to the energy absorption part 320 via the contact surface 311, the force guiding surface 313, and the connection surface 312. The force guiding surface 313 is set as an inclined plane, so that the energy can be inclinedly transmitted to the energy absorption part 320, and the collision energy is absorbed by the deformation of the energy absorption part 320. Furthermore, the energy of the pedestrian collision is absorbed by the energy absorption part 320 to reduce the injury to the pedestrian's leg. Of course, depending on the pedestrian's height and walking posture, it is not limited to protecting the pedestrian's leg.

[0038] In some embodiments, referring to Figure 1As shown, the energy absorbing structure 300 further includes two clamping parts 330, which are arranged on both sides of the supporting part 310 in the second direction Y, and extend in directions away from each other in the third direction Z. The clamping parts 330 have clamping interfaces 331, and the clamping interfaces 331 are clamped to the bumper 200. The first direction X, the second direction Y and the third direction Z are perpendicular to each other. The clamping parts 330 include a first clamping part 330 and a second clamping part 330, and the first clamping part 330 extends upward in the third direction Z, and the second clamping part 330 extends downward in the third direction Z. The energy absorbing structure 300 is clamped to the bumper 200 through the clamping interfaces on the first clamping part 330 and the second clamping part 330, so that the energy absorbing structure 300 is fixed to the bumper 200. When the force applied to the energy absorbing structure 300 is tilted upward in the second direction Y, the first clamping portion 330 can play a role of fixing and supporting the energy absorbing structure 300. When the force applied to the energy absorbing structure 300 is tilted downward in the second direction Y, the second clamping portion 330 can play a role of fixing and supporting the energy absorbing structure 300. Such a design can adapt to forces transmitted in different directions and maintain the stability of the energy absorbing structure 300 between the connection panel 110 and the bumper 200.

[0039] In some embodiments, reference Figure 2 and Figure 3 As shown, the support part 310 includes a force-bearing part 314 and a connecting part 315. The height of the force-bearing part 314 in the third direction Z is greater than the height of the connecting part 315. The connecting part 315 is connected between the force-bearing part 314 and the energy-absorbing part 320. The side of the force-bearing part 314 away from the connecting part 315 forms a contact surface 311, and the side of the connecting part 315 away from the force-bearing part 314 forms a connecting surface 312. In the third direction Z, the connecting part 315 forms a force-guiding surface 313. The first direction X, the second direction Y and the third direction Z are perpendicular to each other. The height of the force-bearing part 314 is greater than the height of the connecting part 315, so that the area of the contact surface 311 is greater than the area of the connecting surface 312. Since the area of the contact surface 311 is larger, the pressure of the contact part with the pedestrian can be reduced, and the concentration of the force can be avoided to cause greater damage to the contact part of the pedestrian. Part of the force is transmitted to the energy absorbing part 320 via the force guiding surface 313 , and part of the force acts directly on the force bearing part 314 , which absorbs part of the force, thereby dispersing the force of the energy absorbing part 320 and increasing the stability of the energy absorbing structure 300 .

[0040] In some embodiments, reference Figure 2 and Figure 3As shown, the force-receiving part 314 includes a force-receiving main body 3141 and force-receiving ribs 3142. The force-receiving ribs 3142 are provided on the force-receiving main body 3141. The force-receiving ribs 3142 protrude toward the side of the connection panel 110, and the force-receiving ribs 3142 abut against the connection panel 110. The force-receiving main body 3141 can absorb and disperse part of the acting force. The force-receiving ribs 3142 abutting on the connection panel 110 can act on the outer shell 100. The force-receiving ribs 3142 and the outer shell 100 are of an integral structure, which can strengthen the outer shell 100 and maintain the structural stability of the outer shell 100.

[0041] In some embodiments, referring to Figure 3 and Figure 4 As shown, the energy-absorbing part 320 includes a plurality of energy-absorbing bodies 321 arranged at intervals along the first direction X. The energy-absorbing bodies 321 form grooves 322. The notch 323 of the groove 322 is opened in the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other in pairs. Thus, the support part 310 disperses and transfers the energy to the spaced-apart energy-absorbing bodies 321, and the energy is dispersed and absorbed by the plurality of energy-absorbing bodies 321, reducing the energy carried by each energy-absorbing body 321. And the groove 322 on the energy-absorbing body 321 deforms and sinks toward the side away from the notch 323 under the action of the energy, thereby reducing the reaction force on the pedestrian's collision part and further protecting the pedestrian.

[0042] In some embodiments, referring to Figure 4 As shown, the groove 322 includes a U-shaped groove formed by a bottom wall 325 and two side walls 324. The two side walls 324 are provided on both sides of the bottom wall 325. The notch 323 is opened upward or downward in the third direction Z. When the groove 322 absorbs energy, the bottom wall 325 deforms toward the side away from the notch 323, and the two side walls 324 approach each other and close to the notch 323.

[0043] In another embodiment, the groove 322 includes two side walls 324. The two side walls 324 are connected to form a V-shaped groove. The notch 323 where the two side walls 324 are connected is opened upward or downward in the third direction Z. When the groove 322 absorbs energy, it deforms toward the side away from the notch 323, and the two side walls 324 approach each other and close to the notch 323.

[0044] In some embodiments, the groove 322 can also be set as a special-shaped groove, a square groove, etc. according to the energy transfer direction and energy absorption effect.

[0045] In some embodiments, referring to Figure 4As shown, the width of the bottom wall 325 of the groove 322 is smaller than the width of the notch 323, and the side wall 324 of the groove 322 is inclined from the notch 323 towards the bottom wall 325. The side wall 324 is inclined from the notch 323 towards the bottom wall 325, and the angle between the side wall 324 and the central axis of the groove 322 is between 2° and 5°, and the inclination direction is towards the collision force transmission path, i.e., the second direction Y. In the first stage of the collision, the side wall 324 is squeezed and bent inward into the groove, forming an "inward adduction" deformation to reduce the initial peak force; in the second stage of the collision, the side wall 324 continues to be inclined and deformed, guiding the groove 322 to gradually close from the notch 323 towards the bottom wall 325, prolonging the stress duration in the plateau region; the bottom wall 325 is bent and fractured under the extrusion of the two side walls 324, triggering the complete crushing of the energy absorber 321. This maximizes the energy absorption efficiency of the groove 322 in a limited space, while avoiding the direct transmission of rigid impact to the occupant compartment, comprehensively improving the vehicle collision safety performance.

[0046] In some embodiments, the width of the bottom wall 325 is between 20 mm and 25 mm, and the width of the notch 323 is between 25 mm and 30 mm. Specifically, the widths of the bottom wall 325 and the notch 323 are set according to the actual force conditions.

[0047] In some embodiments, the side wall 324 of the groove 322 is inclined from the notch 323 towards the bottom wall 325 to form a foldable point 326 at the connection between the side wall 324 and the bottom wall 325 of the groove 322. The foldable point 326 is arranged to be bent when the energy absorption part 320 receives a force in the second direction Y. The foldable point 326 can be arranged in the connection area between the side wall 324 and the bottom wall 325. The bending root of the foldable point 326 adopts an arc transition with a radius between 0.5 mm and 1.5 mm to avoid accidental fracture caused by stress concentration. Specifically, a V-shaped or U-shaped micro-groove is preset at the foldable point 326 to guide the starting position of the bending. When the energy absorption part 320 receives a force in the second direction Y, the foldable point 326 has the following deformation process: In the first stage, the side wall 324 undergoes elastic deformation, and the whole groove 322 is compressed, and the energy absorption is mainly based on the elastic energy storage of the material; in the second stage, the foldable point 326 undergoes plastic bending, and the side wall 324 is turned inward; in the third stage, the bending areas of adjacent grooves 322 are mutually interlocked to form a dense laminated structure, providing residual supporting force.

[0048] In some embodiments, refer to Figure 5As shown, the energy absorption part 320 includes two protruding parts 327. The two protruding parts 327 are located on both sides of the groove 322 in the second direction Y. One protruding part 327 is connected to the connection surface 312, and the other protruding part 327 abuts against the bumper 200. The protruding part 327 connected to the connection surface 312 preferentially receives the energy transmitted by the support part 310, and the protruding part 327 abutting against the bumper 200 transmits the energy to the bumper 200. The height of the protruding part 327 is greater than the thickness of the bottom wall 325 of the groove 322 in the third direction Z. Before and after the deformation of the groove 322, the protruding part 327 can play a supporting and bearing role, providing sufficient support for the energy absorber 321. Since the opening directions of the notches 323 on each energy absorber 321 are the same, after being stressed, the grooves 322 all deform towards the side away from the notches 323, so that the protruding parts 327 abutting against the bumper 200 can all tilt towards the side away from the bottom wall 325 of the groove 322 in the third direction Z, so that the energy absorber 321 will not swing irregularly in the third direction Z, so as to keep the energy absorption structure 300 from moving irregularly in the second direction Y, and can play a better protective role for pedestrians after the energy absorption structure 300 is stressed.

[0049] In some embodiments, the force guiding surface 313 is inclined from the side close to the contact surface 311 to the side close to the connection surface 312, and the included angle between the force guiding surface 313 and the second direction Y is between 5° and 10°. Setting the included angle between the force guiding surface 313 and the second direction Y between 5° and 7° can transmit 80% to 90% of the force received by the contact surface 311 to the energy absorption part 320, and the remaining 10% to 20% of the force will be dispersed in other directions. Such a design can maximize the stability of the energy absorption structure 300 between the connection panel 110 and the bumper 200; setting the included angle between the force guiding surface 313 and the second direction Y between 7° and 10° can transmit 90% to 95% of the force received by the contact surface 311 to the energy absorption part 320, and the remaining 5% to 10% of the force will be dispersed in other directions. Such a design can transmit more force to the energy absorption part 320, so that the energy absorption structure 300 has a better energy absorption effect. Preferably, the included angle between the force guiding surface 313 and the second direction Y is 7°, which can balance the stability and energy absorption effect of the energy absorption structure.

[0050] This application also provides an energy absorption structure. Refer to Figures 1 to 5As shown, the energy-absorbing structure 300 is disposed between the outer housing 100 and the bumper 200. Among them, the bumper 200 is arranged to extend along the first direction X. The bumper 200 is opposite to and spaced from the outer housing 100 in the second direction Y. The first direction X and the second direction Y are perpendicular. The energy-absorbing structure 300 includes a support portion 310 and an energy-absorbing portion 320. The support portion 310 is arranged to extend along the first direction X. The support portion 310 includes a contact surface 311, a connection surface 312, and a force-guiding surface 313. The contact surface 311 and the connection surface 312 are arranged to face away from each other in the second direction Y. The contact surface 311 abuts against the outer housing 100. The energy-absorbing portion 320 abuts between the connection surface 312 and the bumper 200. The force-guiding surface 313 connects the contact surface 311 and the connection surface 312. The height of the force-guiding surface 313 gradually decreases from the height on the side close to the contact surface 311 to the height on the side close to the connection surface 312. Thus, the bumper 200 is arranged to extend along the first direction X. The bumper 200 is opposite to and spaced from the outer housing 100 in the second direction Y to form an installation space for the energy-absorbing structure 300. The energy-absorbing structure 300 is disposed between the outer housing 100 and the bumper 200 in the second direction Y within the installation space. The support portion 310 of the energy-absorbing structure 300 plays a supporting role for the outer housing 100 and is also the main stress position 314 in the vehicle-pedestrian collision condition, so as to support the leg through the energy-absorbing structure 300 during the collision between the pedestrian and the vehicle, so that the leg will not directly contact the bumper 200. The support portion 310 includes a contact surface 311, a connection surface 312, and a force-guiding surface 313. The contact surface 311 and the connection surface 312 are arranged to face away from each other in the second direction Y. The contact surface 311 abuts against the outer housing 100. The energy-absorbing portion 320 abuts between the connection surface 312 and the bumper 200. The force-guiding surface 313 connects the contact surface 311 and the connection surface 312. Since the height of the force-guiding surface 313 gradually decreases from the height on the side close to the contact surface 311 to the height on the side close to the connection surface 312, the force-guiding surface 313 is an inclined surface. When an external force of collision is applied to the contact surface 311, the external force is inclined and transmitted to the energy-absorbing portion 320 along the inclined surface, and the collision energy is absorbed through the deformation of the energy-absorbing portion 320, thereby reducing the injury to the pedestrian.

[0051] In this application, unless otherwise clearly specified and limited, terms such as "arranged (provided with)", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0052] In the description of this specification, the description referring to terms such as "some embodiments" means that the specific features, structures, materials, or characteristics described in connection with the embodiment are included in at least one embodiment of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0053] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and the description of the present application shall fall within the scope covered by the patent of the present application.

Claims

1. A vehicle, characterized in that, The vehicle includes: An outer housing (100) including a connecting panel (110); A bumper (200) extending along a first direction (X), the bumper (200) being opposite and spaced from the connecting panel (110) in a second direction (Y), the first direction (X) and the second direction (Y) being perpendicular; An energy-absorbing structure (300) disposed between the outer housing (100) and the bumper (200) in the second direction (Y), the energy-absorbing structure (300) including a support portion (310) and an energy-absorbing portion (320), the support portion (310) extending along the first direction (X), the support portion (310) including a contact surface (311), a connecting surface (312) and a force-guiding surface (313), the contact surface (311) and the connecting surface (312) being disposed away from each other in the second direction (Y), the contact surface (311) abutting against the connecting panel (110), the energy-absorbing portion (320) abutting between the connecting surface (312) and the bumper (200), the force-guiding surface (313) connecting the contact surface (311) and the connecting surface (312), the force-guiding surface (313) gradually decreasing in height from the side close to the contact surface (311) to the side close to the connecting surface (312).

2. The vehicle according to claim 1, characterized in that, The energy-absorbing portion (320) includes a plurality of energy-absorbing bodies (321) spaced along the first direction (X), the energy-absorbing bodies (321) forming a groove (322), an opening (323) of the groove (322) being formed in a third direction (Z), the first direction (X), the second direction (Y) and the third direction (Z) being perpendicular to each other pairwise.

3. The vehicle according to claim 2, characterized in that, A bottom wall (325) of the groove (322) is narrower than an opening width of the opening (323), and side walls (324) of the groove (322) are inclined from the opening (323) towards the bottom wall (325).

4. The vehicle according to claim 2, characterized in that, The side walls (324) of the groove (322) are inclined from the opening (323) towards the bottom wall (325) to form a breakable portion (326) at a connection between the side walls (324) and the bottom wall (325) of the groove (322), the breakable portion (326) being configured to bend when the energy-absorbing portion (320) receives a force in the second direction (Y).

5. The vehicle according to claim 2, characterized in that, The energy-absorbing portion (320) includes two protruding portions (327), the two protruding portions (327) being located on two sides of the groove (322) in the second direction (Y), one protruding portion (327) being connected to the connecting surface (312), and the other protruding portion (327) abutting against the bumper (200).

6. The vehicle according to claim 1, characterized in that, The force-guiding surface (313) is inclined from the side close to the contact surface (311) towards the side close to the connecting surface (312), and an angle between the force-guiding surface (313) and the second direction (Y) is between 5° and 10°.

7. The vehicle according to claim 1, wherein The support part (310) includes a force-receiving part (314) and a connecting part (315). In the third direction (Z), the height of the force-receiving part (314) is greater than that of the connecting part (315). The connecting part (315) is connected between the force-receiving part (314) and the energy-absorbing part (320). One side of the force-receiving part (314) facing away from the connecting part (315) forms the contact surface (311), and one side of the connecting part (315) facing away from the force-receiving part (314) forms the connecting surface (312). In the third direction (Z), the connecting part (315) forms the force-guiding surface (313). The first direction (X), the second direction (Y), and the third direction (Z) are perpendicular to each other in pairs.

8. The vehicle according to claim 7, characterized in that, The force-receiving part (314) includes a force-receiving main body (3141) and force-receiving ribs (3142). The force-receiving ribs (3142) are arranged on the force-receiving main body (3141). The force-receiving ribs (3142) protrude toward the connecting panel (110), and the force-receiving ribs (3142) abut against the connecting panel (110).

9. The vehicle according to claim 1, characterized in that, The energy-absorbing structure (300) further includes two clamping parts (330). In the second direction (Y), the two clamping parts (330) are arranged on both sides of the support part (310). In the third direction (Z), the two clamping parts (330) extend in the direction away from each other. The clamping part (330) has a clamping opening (331), and the clamping opening (331) is clamped to the bumper (200). The first direction (X), the second direction (Y), and the third direction (Z) are perpendicular to each other in pairs.

10. An energy-absorbing structure (300), characterized in that, The energy-absorbing structure (300) is arranged between the outer shell (100) and the bumper (200). Among them, the bumper (200) extends along the first direction (X). The bumper (200) is opposite to and spaced from the outer shell (100) in the second direction (Y). The first direction (X) and the second direction (Y) are perpendicular. The energy-absorbing structure (300) includes a support part (310) and an energy-absorbing part (320). The support part (310) extends along the first direction (X). The support part (310) includes a contact surface (311), a connecting surface (312), and a force-guiding surface (313). The contact surface (311) and the connecting surface (312) are arranged back to back in the second direction (Y). The contact surface (311) abuts against the outer shell (100). The energy-absorbing part (320) abuts between the connecting surface (312) and the bumper (200). The force-guiding surface (313) connects the contact surface (311) and the connecting surface (312). The height of the force-guiding surface (313) gradually decreases from the height on the side close to the contact surface (311) to the height on the side close to the connecting surface (312).

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