Energy absorption box assembly and vehicle

Abstract

The utility model discloses an energy absorption box assembly and a vehicle. The energy absorption box assembly comprises a first energy absorption box and a second energy absorption box, the second energy absorption box is detachably arranged on the outer side of the first energy absorption box, the first energy absorption box and / or the second energy absorption box are / is a hollow box body, the hollow box body extends in the left-right direction, a plurality of cavities are formed in the hollow box body, and the structural strength of the first energy absorption box is different from that of the second energy absorption box. When the vehicle is slightly collided, the second energy absorption box absorbs collision energy, the first energy absorption box does not deform, only the second energy absorption box needs to be replaced during maintenance, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an energy absorption box assembly and a vehicle. Background Art

[0002] As collision regulations are gradually tightened, traditional collision energy absorption structures cannot effectively support the achievement of safety performance goals, especially for luxury models, which have higher requirements for structural safety due to their large body size and high configuration. With traditional body design, the rear energy absorption space is small, and it is difficult to achieve good rear collision safety performance with only traditional rear anti-collision beam energy absorption boxes.

[0003] In the related technology, there is an energy absorption box that relies on the forming direction of the aluminum profile to resist the impact of rear collision. When the vehicle has a minor collision, although the energy absorption box is slightly deformed, the entire energy absorption box needs to be replaced, resulting in a large after-sales cost. In addition, due to process limitations, it cannot be lightweight, and the force transmission effect is single, and it cannot absorb more collision energy. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an energy absorption box assembly. When a vehicle has a slight collision, the second energy absorption box absorbs the collision energy, and the first energy absorption box does not deform. When repairing, only the second energy absorption box needs to be replaced, which reduces the cost.

[0005] The utility model further provides a vehicle.

[0006] According to the energy absorption box assembly of the first embodiment of the utility model, it includes: a first energy absorption box; a second energy absorption box, wherein the second energy absorption box is detachably arranged on the outside of the first energy absorption box, the first energy absorption box and / or the second energy absorption box is a hollow box body, the hollow box body extends in the left and right directions and has a plurality of chambers formed therein, and the first energy absorption box and the second energy absorption box have different structural strengths.

[0007] According to the energy absorption box assembly of the embodiment of the utility model, when the vehicle has a slight collision, the second energy absorption box absorbs the collision energy, and the first energy absorption box will not be deformed. During maintenance, only the second energy absorption box needs to be replaced, which reduces costs. In addition, the first energy absorption box and the second energy absorption box have different structural strengths, which can achieve graded energy transfer.

[0008] According to some embodiments of the present invention, an opening is provided on the outer side of the first energy absorbing box, and the second energy absorbing box is provided in the opening.

[0009] According to some embodiments of the utility model, the first energy absorption box includes: a first connecting plate and at least three first beams spaced apart in the up-down direction, one end of at least three first beams is connected to the first connecting plate, a plurality of first reinforcing ribs are arranged between two adjacent first beams, and two adjacent first beams are connected to the first reinforcing ribs at the ends facing away from the first connecting plate; and / or, the second energy absorption box includes: a second connecting plate and at least three second beams spaced apart in the up-down direction, one end of at least three second beams is connected to the second connecting plate, a plurality of second reinforcing ribs are arranged between two adjacent second beams, and two adjacent second beams are connected to the second reinforcing ribs at the ends facing away from the second connecting plate, a side of the first energy absorption box facing away from the first connecting plate is connected to a side of the second energy absorption box facing away from the second connecting plate, and at least three first beams and at least three second beams correspond one to one.

[0010] According to some embodiments of the present invention, a first connection portion is provided on the first reinforcement rib at the end of the first energy absorption box facing away from the first connecting plate, and a second connection portion corresponding to the first connection portion is provided on the second reinforcement rib at the end of the second energy absorption box facing away from the second connecting plate.

[0011] According to some embodiments of the present invention, the first reinforcing rib at the end of the first energy absorption box away from the first connecting plate is a first bending rib, and the two ends of the first bending rib respectively have a first bending portion bent in opposite directions, and the first bending portion forms the first connecting portion; and the second reinforcing rib at the end of the second energy absorption box away from the second connecting plate is a second bending rib, and the two ends of the second bending rib respectively have a second bending portion bent in opposite directions, and the second bending portion forms the second connecting portion, and the first bending portion and the second bending portion are fitted in a one-to-one correspondence.

[0012] According to some embodiments of the present invention, the first connection portion has a first connection surface, the second connection portion has a second connection surface, and the first connection surface and the second connection surface are vertically arranged along the up-down direction.

[0013] According to some embodiments of the utility model, the plurality of first reinforcing ribs between two adjacent first cross beams form a single layer of reinforcing ribs, and the plurality of first reinforcing ribs in two adjacent layers are cross-arranged with each other in the up-down direction; and / or the plurality of second reinforcing ribs between two adjacent second cross beams form a single layer of reinforcing ribs, and the plurality of second reinforcing ribs in two adjacent layers are cross-arranged with each other in the up-down direction.

[0014] According to some embodiments of the utility model, a plurality of the first reinforcing ribs of two adjacent layers cross each other in the up-down direction to form a first plate thickness portion on the first cross beam at the intersection, and a first through hole structure is arranged at the center of the first plate thickness portion; and / or a plurality of the second reinforcing ribs of two adjacent layers cross each other in the up-down direction to form a second plate thickness portion on the second cross beam at the intersection, and a second through hole structure is arranged at the center of the second plate thickness portion.

[0015] According to some embodiments of the utility model, the hollow box body includes: a connecting plate and at least three beams spaced apart in the up-down direction, one end of at least three of the beams is connected to the connecting plate, a plurality of reinforcing ribs are arranged between two adjacent beams to form a single layer of reinforcing ribs, the plurality of reinforcing ribs of two adjacent layers are cross-arranged with each other in the up-down direction, and the two adjacent beams are connected to the reinforcing ribs at the ends facing away from the connecting plate.

[0016] The vehicle according to the second embodiment of the utility model includes: a vehicle body; an anti-collision beam; and a plurality of the energy absorption box assemblies, wherein the plurality of the energy absorption box assemblies are arranged between the vehicle body and the anti-collision beam, the first energy absorption box is connected to the vehicle body, and the second energy absorption box is connected to the anti-collision beam.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic structural diagram of the energy absorption box assembly, the vehicle body and the anti-collision beam connection according to an embodiment of the utility model;

[0020] Figure 2 It is a schematic structural diagram of the energy absorption box assembly and the vehicle body connected according to an embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the energy absorption box assembly according to the first embodiment of the utility model from a first perspective;

[0022] Figure 4 is a structural schematic diagram of the energy absorption box assembly according to the first embodiment of the utility model from a second viewing angle;

[0023] Figure 5 is a structural schematic diagram of a first energy absorption box according to a first embodiment of the utility model;

[0024] Figure 6is a structural schematic diagram of an energy absorption box assembly according to a second embodiment of the utility model from a first perspective;

[0025] Figure 7 It is a structural schematic diagram of the energy absorption box assembly according to the second embodiment of the utility model from a second viewing angle.

[0026] Reference numerals:

[0027] 100. Energy absorption box assembly;

[0028] 1. first energy absorption box; 11. first connecting plate; 12. first crossbeam; 13. first reinforcing rib; 14. first plate thickness portion; 15. first through hole structure; 16. opening; 17. first connecting portion; 18. first bending section;

[0029] 2. second energy absorption box; 21. second connecting plate; 22. second cross beam; 23. second reinforcing rib; 24. second plate thickness portion; 25. second through hole structure; 26. second connecting portion; 27. second bending section;

[0030] 200, vehicle body; 300, anti-collision beam. DETAILED DESCRIPTION

[0031] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0032] Reference below Figure 1-Figure 7 An energy absorption box assembly according to an embodiment of the utility model is described.

[0033] As collision regulations are gradually tightened, traditional collision energy absorption structures cannot effectively support the achievement of safety performance goals, especially for luxury models, which have higher requirements for structural safety due to their large body size and high configuration. Traditional body design has small rear energy absorption space, and most existing energy absorption boxes rely on the forming direction of aluminum profiles to resist rear impact. When a vehicle has a minor collision, although the energy absorption box is slightly deformed, the entire energy absorption box needs to be replaced, resulting in high after-sales costs. In addition, due to process limitations, it is impossible to reduce weight, and the force transmission effect is single, and it cannot absorb more collision energy.

[0034] Therefore, the utility model proposes a new energy absorption box assembly to solve the above-mentioned technical problems.

[0035] like Figure 3-Figure 5 The first embodiment shown, and Figure 6-Figure 7In the second embodiment shown, the energy absorption box assembly 100 includes: a first energy absorption box 1 and a second energy absorption box 2, the second energy absorption box 2 is detachably arranged on the outside of the first energy absorption box 1, the first energy absorption box 1 and / or the second energy absorption box 2 is a hollow box body, the hollow box body extends in the left-right direction, and a plurality of chambers are formed inside the hollow box body, and the structural strengths of the first energy absorption box 1 and the second energy absorption box 2 are different.

[0036] In this way, the second energy absorbing box 2 is detachably arranged on the outside of the first energy absorbing box 1. When the vehicle has a slight collision, the second energy absorbing box 2 is slightly deformed. During maintenance, only the second energy absorbing box 2 needs to be replaced, thereby reducing costs.

[0037] Furthermore, the first energy absorbing box 1 and the second energy absorbing box 2 have different structural strengths, so graded energy transmission can be achieved.

[0038] Generally, the structural strength of the first energy absorbing box 1 may be greater than that of the second energy absorbing box 2, which can not only realize graded energy transmission, but also prevent the first energy absorbing box 1 from deforming when the vehicle is subjected to a slight collision, thereby effectively absorbing energy and transmitting force.

[0039] The first energy absorbing box 1 and / or the second energy absorbing box 2 is a hollow box body, and the hollow box body can be made of metal sheet.

[0040] Furthermore, the hollow box body extends in the left-right direction and has a plurality of chambers formed therein. In other words, the energy absorption and collapse direction of the energy absorption box assembly 100 is the front-rear direction of the vehicle. When the vehicle is hit, more collision energy is absorbed by the plurality of chambers inside the hollow box body, thereby improving the anti-collision performance of the vehicle and effectively supporting the achievement of the installation performance.

[0041] Compared with the existing energy absorption boxes which mostly rely on the forming direction of aluminum profiles to resist rear-end impact, when a vehicle has a minor collision, although the energy absorption box is slightly deformed, the entire energy absorption box needs to be replaced, resulting in a large after-sales cost. The energy absorption box assembly 100 of the utility model only needs to replace the second energy absorption box 2, effectively reducing the after-sales cost.

[0042] In addition, due to the difficulty in controlling the wall thickness precision of the traditional aluminum profile extrusion process, there is a large gap between the actual performance and the simulation analysis performance. Therefore, the energy absorption box assembly 100 of the present invention selects the non-process extrusion direction as the energy absorption and collapse direction of the energy absorption box assembly 100, which is not subject to process restrictions. Compared with the traditional structure that relies on the forming direction of the aluminum profile to resist the impact of rear collision, the present invention is no longer subject to process restrictions, thereby being able to achieve a lightweight design of the energy absorption box assembly 100.

[0043] Therefore, the energy absorption box assembly 100 of the utility model is composed of the first energy absorption box 1 and the second energy absorption box 2. When the vehicle is slightly collided, the second energy absorption box 2 absorbs the collision energy, and the first energy absorption box 1 will not be deformed. During maintenance, only the second energy absorption box 2 needs to be replaced, which reduces costs. In addition, the first energy absorption box 1 and / or the second energy absorption box 2 are hollow boxes. When the vehicle is collided, more collision energy is absorbed through the multiple chambers inside the hollow box. In addition, the first energy absorption box 1 and the second energy absorption box 2 have different structural strengths, which can achieve graded energy transfer. In addition, due to the traditional aluminum profile extrusion process, the wall thickness accuracy is difficult to control, resulting in a large gap between the actual performance and the simulation analysis performance. Therefore, the energy absorption box assembly 100 of the utility model selects the non-process extrusion direction as the energy absorption and collapse direction of the energy absorption box assembly 100, which is not limited by the process, so that the lightweight design of the energy absorption box assembly 100 can be achieved.

[0044] Furthermore, an opening 16 is provided on the outer side of the first energy absorbing box 1 , and the second energy absorbing box 2 is provided in the opening 16 .

[0045] In this configuration, the first energy absorbing box 1 wraps the second energy absorbing box 2 within its opening 16, which facilitates the installation and connection between the first energy absorbing box 1 and the second energy absorbing box 2, and such a surrounding structure is more conducive to achieving graded energy transfer.

[0046] Furthermore, the first energy absorption box 1 includes: a first connecting plate 11 and at least three first beams 12 spaced apart in the up-down direction, one end of at least three first beams 12 is connected to the first connecting plate 11, a plurality of first reinforcing ribs 13 are arranged between two adjacent first beams 12, and two adjacent first beams 12 are connected to the first reinforcing ribs 13 at the ends facing away from the first connecting plate 11.

[0047] That is to say, at least three first beams 12 are spaced apart from each other, one end of at least three first beams 12 is connected to the first connecting plate 11, and for the other ends of at least three first beams 12, a first reinforcing rib 13 is connected between every two first beams 12 to form a hollow box body. In addition, a plurality of first reinforcing ribs 13 are arranged between two adjacent first beams 12, so that a plurality of chambers are formed inside the hollow box body. In this way, at least three first beams 12 form three lateral force transmission paths, and a plurality of first reinforcing ribs 13 form a plurality of force transmission paths different from the lateral direction, so that a plurality of mutually cross-linked force transmission paths are formed between at least three first beams 12 and a plurality of first reinforcing ribs 13, which can improve the stability of the first energy absorption box 1 in crushing and energy absorption, thereby effectively absorbing more collision energy.

[0048] The second energy absorption box 2 includes: a second connecting plate 21 and at least three second cross beams 22 spaced apart in the up-down direction, one end of at least three second cross beams 22 is connected to the second connecting plate 21, a plurality of second reinforcing ribs 23 are arranged between two adjacent second cross beams 22, and two adjacent second cross beams 22 are connected to the second reinforcing ribs 23 at the ends facing away from the second connecting plate 21.

[0049] Similarly, at least three second beams 22 form at least three lateral force transmission paths, and multiple second reinforcing ribs 23 form multiple force transmission paths different from the lateral direction, thereby forming multiple interconnected force transmission paths, which can improve the stability of the second energy absorption box 2 in crushing energy absorption, thereby effectively absorbing more collision energy.

[0050] Furthermore, a side of the first energy absorbing box 1 facing away from the first connecting plate 11 is connected to a side of the second energy absorbing box 2 facing away from the second connecting plate 21 , and at least three first cross beams 12 and at least three second cross beams 22 correspond one to one.

[0051] In this way, the first energy absorption box 1 can be fixedly connected to the vehicle body 200 through the first connecting plate 11, and the second energy absorption box 2 can be fixedly connected to the anti-collision beam 300 through the second connecting plate 21. The first connecting plate 11 and the second connecting plate 21 provide a large connection area, which can ensure that the energy absorption box assembly 100 is stably installed between the vehicle body 200 and the anti-collision beam 300, and better improve the stability of the collapse performance. In addition, the side of the first energy absorption box 1 away from the first connecting plate 11 and the side of the second energy absorption box 2 away from the second connecting plate 21 are connected, and the first cross beam 12 and the second cross beam 22 are arranged one by one, so that the first cross beam 12 and the second cross beam 22 of the same height form a transverse force transmission path, and then form at least three transverse force transmission paths, and form more mutually cross-linked force transmission paths with multiple first reinforcing ribs 13 and multiple second reinforcing ribs 23, effectively improving the stability of the energy absorption of the energy absorption box assembly 100 in collapse.

[0052] In the embodiment of the present utility model, the first connecting plate 11 and the vehicle body 200 can be connected by screwing or welding, and the second connecting plate 21 and the anti-collision beam 300 can be connected by screwing, welding or bonding.

[0053] Of course, the connection method of the present invention includes but is not limited to the above-mentioned connection method.

[0054] Compared with existing energy absorption boxes that mostly rely on the forming direction of aluminum profiles to resist rear-end impacts and have a single force transmission effect, the energy absorption box assembly 100 of the utility model is designed with multiple interconnected force transmission paths. When a vehicle is hit, more collision energy is effectively absorbed through multiple interconnected force transmission paths, greatly improving the anti-collision performance of the vehicle, thereby strongly supporting the achievement of installation performance.

[0055] like Figure 3-Figure 5 As shown, the first cross beams 12 on both sides of the first energy absorbing box 1 in the up-down direction extend toward the direction close to the second energy absorbing box 2 to form an opening 16, so that the second cross beams 22 of the second energy absorbing box 2 are all wrapped in the opening 16 of the first energy absorbing box 1, and the second cross beams 22 on both sides of the second energy absorbing box 2 in the up-down direction and the first cross beams 12 on both sides of the first energy absorbing box 1 in the up-down direction are fit and connected to each other, which is beneficial to the fixed connection between the first energy absorbing box 1 and the second energy absorbing box 2, and is also beneficial to the stability of the cross-force transmission structure.

[0056] Furthermore, the first cross beams 12 of the first energy absorbing box 1 on both sides in the up-down direction and the second cross beams 22 of the second energy absorbing box 2 on both sides in the up-down direction may be fixedly connected by screwing or bonding.

[0057] Furthermore, a first connection portion 17 is provided on the first reinforcing rib 13 at the end of the first energy absorbing box 1 away from the first connecting plate 11 , and a second connection portion 26 correspondingly connected to the first connection portion 17 is provided on the second reinforcing rib 23 at the end of the second energy absorbing box 2 away from the second connecting plate 21 .

[0058] In this way, the first reinforcing rib 13 located on the outside of the first energy absorption box 1 and the second reinforcing rib 23 located on the inside of the second energy absorption box 2 are connected by the first connecting portion 17 and the second connecting portion 26, which can further improve the stable connection between the first energy absorption box 1 and the second energy absorption box 2, thereby facilitating the stability of the cross-force transmission structure.

[0059] Furthermore, the first reinforcing rib 13 at the end of the first energy absorption box 1 away from the first connecting plate 11 is a first bending rib, and the two ends of the first bending rib respectively have a first bending portion 18 bent in opposite directions, and the first bending portion 18 forms a first connecting portion 17; and the second reinforcing rib 23 at the end of the second energy absorption box 2 away from the second connecting plate 21 is a second bending rib, and the two ends of the second bending rib respectively have a second bending portion 27 bent in opposite directions, and the second bending portion 27 forms a second connecting portion 26, and the first bending portion 18 and the second bending portion 27 are fitted one by one.

[0060] like Figure 5 As shown, the first bending section 18 at both ends of the first bending rib forms a first connecting portion 17, and correspondingly, the second bending section 27 at both ends of the second reinforcing rib 23 forms a second connecting portion 26. In this way, the bending structure of the first bending section 18 and the second bending section 27 can improve the positioning and installation efficiency between the first bending section 18 and the second bending section 27, and the fitting connection between the first bending section 18 and the second bending section 27 can better improve the connection reliability of the first energy absorption box 1 and the second energy absorption box 2, thereby achieving a better force transmission effect.

[0061] Among them, there are at least two first bending ribs on the outside of the first energy absorption box 1, and at least four first bending sections 18 are formed on the outside of the first energy absorption box 1, and at least four second bending sections 27 are provided on the inside of the second energy absorption box 2. The first bending sections 18 and the second bending sections 27 correspond one to one to achieve the connection between the first energy absorption box 1 and the second energy absorption box 2, and at the same time are beneficial to the transmission of collision force.

[0062] Furthermore, the first connection portion 17 has a first connection surface, the second connection portion 26 has a second connection surface, and the first connection surface and the second connection surface are vertically arranged along the up-down direction.

[0063] In this configuration, the first connection portion 17 and the second connection portion 26 are connected along a plane in the up-down direction, and the collision energy is transmitted to the first connection portion 17 through the second connection portion 26 of the second energy absorbing box 2, thereby achieving direct and rapid force transmission.

[0064] Furthermore, the plurality of first reinforcing ribs 13 between any two adjacent first cross beams 12 form a single layer of reinforcing ribs, and the plurality of first reinforcing ribs 13 in two adjacent layers are arranged to cross each other in the up-and-down direction.

[0065] Taking the first / second embodiment of the utility model as an example, the first energy absorption box 1 is provided with three first cross beams 12 spaced apart in the up-down direction, a plurality of first reinforcing ribs 13 are provided between the first cross beam 12 located on the upper side and the first cross beam 12 located in the middle to form a plurality of first reinforcing ribs 13 of the first layer, a plurality of first reinforcing ribs 13 are provided between the first cross beam 12 located on the lower side and the first cross beam 12 located in the middle to form a plurality of first reinforcing ribs 13 of the second layer, and the plurality of first reinforcing ribs 13 of the first layer and the plurality of first reinforcing ribs 13 of the second layer are cross-arranged with each other in the up-down direction.

[0066] In this way, the multiple first reinforcing ribs 13 that cross each other in the vertical direction form multiple interconnected force transmission paths, which can absorb more collision energy more concentratedly and effectively, thereby better improving the stability of crush energy absorption.

[0067] Furthermore, the plurality of second reinforcing ribs 23 between any two adjacent second cross beams 22 form a single layer of reinforcing ribs, and the plurality of second reinforcing ribs 23 in two adjacent layers are arranged to cross each other in the up-and-down direction.

[0068] Similarly, the multiple second reinforcing ribs 23 of the first layer and the multiple second reinforcing ribs 23 of the second layer are cross-arranged in the up and down directions to form multiple interconnected force transmission paths, which can more effectively absorb more collision energy, thereby better improving the stability of the energy absorption box assembly 100 in crushing and energy absorption, and further improving the vehicle's anti-collision performance.

[0069] Furthermore, multiple first reinforcing ribs 13 of two adjacent layers cross each other in the up-down direction to form a first plate thickness portion 14 on the first cross beam 12 at the intersection, and a first through hole structure 15 is arranged at the center of the first plate thickness portion 14; and / or, multiple second reinforcing ribs 23 of two adjacent layers cross each other in the up-down direction to form a second plate thickness portion 24 on the second cross beam 22 at the intersection, and a second through hole structure 25 is arranged at the center of the second plate thickness portion 24.

[0070] In this arrangement, since the multiple first reinforcing ribs 13 of two adjacent layers intersect each other in the vertical direction, a thicker structure is formed on the first crossbeam 12 at the intersection, resulting in local material accumulation, which will damage the force transmission channel and increase the weight. Therefore, the first through-hole structure 15 is provided in the first plate thickness portion 14 at the intersection to avoid local material accumulation, thereby achieving the effect of graded energy absorption. Similarly, the second plate thickness portion 24 is provided with a second through-hole structure 25.

[0071] In the embodiment of the present utility model, the first through hole structure 15 / the second through hole structure 25 may be a circular hole structure or an oblong hole structure, so as to avoid the problem of stress concentration at the intersection and the occurrence of cracks or even cracks.

[0072] It should be noted that the M-shaped cross structure design should be avoided, as this is conducive to force transmission and facilitates drilling.

[0073] Furthermore, the hollow box body includes: a connecting plate and at least three beams spaced apart in the up-down direction, one end of at least three beams is connected to the connecting plate, a plurality of reinforcing ribs are arranged between two adjacent beams to form a single layer of reinforcing ribs, the plurality of reinforcing ribs of two adjacent layers are cross-arranged with each other in the up-down direction, and the two adjacent beams are connected to the reinforcing ribs at the ends away from the connecting plate.

[0074] In other words, at least three crossbeams are spaced apart from each other, one end of at least three crossbeams is connected to the connecting plate, and for the other ends of at least three crossbeams, a reinforcing rib is connected between every two crossbeams to form a hollow box body. In addition, a plurality of reinforcing ribs are arranged between two adjacent crossbeams to form a single layer of reinforcing ribs, and the plurality of reinforcing ribs of two adjacent layers are arranged crosswise in the vertical direction. In this way, at least three crossbeams form three transverse force transmission paths, and the plurality of reinforcing ribs crosswise in the vertical direction to form a plurality of force transmission paths different from the transverse direction, so that a plurality of mutually cross-linked force transmission paths are formed between the at least three crossbeams and the plurality of reinforcing ribs, which can improve the stability of the hollow box body's collapse energy absorption, thereby being able to absorb more collision energy.

[0075] Furthermore, the dimension of the first energy absorbing box 1 in the front-to-rear direction is greater than the dimension of the second energy absorbing box 2 in the front-to-rear direction.

[0076] With such arrangement, the length dimension of the first energy absorption box 1 is greater than that of the second energy absorption box 2, so that the length dimension of the energy absorption box assembly 100 can be within the specified range. When the vehicle suffers a minor collision, only the smaller second energy absorption box 2 needs to be replaced, and the after-sales cost is relatively low.

[0077] In addition, the number of reinforcing ribs of the first energy absorbing box 1 is greater than the number of reinforcing ribs of the second energy absorbing box 2 , that is, the collapse performance of the first energy absorbing box 1 is better than that of the second energy absorbing box 2 , which can well protect the vehicle body 200 .

[0078] Since the space between the vehicle body 200 and the anti-collision beam 300 is limited, the length dimensions of the first energy absorption box 1 and the second energy absorption box 2 can be designed as well as the number of the first reinforcing ribs 13 and the second reinforcing ribs 23 according to actual conditions.

[0079] like Figure 3-Figure 5 In the first embodiment shown, the first energy absorption box 1 has two groups of first reinforcing ribs 13 structures that intersect each other vertically, and the second energy absorption box 2 has one group of second reinforcing ribs 23 structures that intersect each other vertically.

[0080] like Figure 6 and Figure 7 In the second embodiment shown, the first energy absorption box 1 has three groups of first reinforcing ribs 13 structures that intersect each other vertically, and the second energy absorption box 2 has one group of second reinforcing ribs 23 structures that intersect each other vertically.

[0081] It should be noted that the multiple first reinforcing ribs 13 of two adjacent layers intersect each other in the up and down directions to form multiple intersections, and one intersection is regarded as a group of first reinforcing rib 13 structures that intersect each other up and down. The number of first reinforcing rib 13 structures / second reinforcing rib 23 structures is calculated based on the number of intersections.

[0082] The vehicle according to the embodiment of the second aspect of the utility model includes: a vehicle body 200, an anti-collision beam 300 and a plurality of energy absorption box assemblies 100, wherein the plurality of energy absorption box assemblies 100 are arranged between the vehicle body 200 and the anti-collision beam 300, the first energy absorption box 1 is connected to the vehicle body 200, and the second energy absorption box 2 is connected to the anti-collision beam 300.

[0083] In an embodiment of the present utility model, there are four energy absorption box assemblies 100 between the anti-collision beam 300 and the vehicle body 200, forming four force transmission channels. Compared with the traditional beam channel solution, it can absorb more collision energy and protect the occupants and the fuel tank, battery pack, etc.

[0084] Therefore, the energy absorption box assembly 100 of the present invention has the following technical effects:

[0085] First, the energy absorption box assembly 100 is composed of a first energy absorption box 1 and a second energy absorption box 2. When a slight collision occurs at the front or rear of the vehicle, the second energy absorption box 2 is deformed. During maintenance, only the second energy absorption box 2 needs to be replaced, thereby reducing costs.

[0086] Second, the first energy absorbing box 1 and the second energy absorbing box 2 have different structural strengths, which can achieve graded energy transfer.

[0087] Third, the first energy absorbing box 1 forms an opening 16, so that the crossbeam of the second energy absorbing box 2 is wrapped in the opening 16, which improves the connection stability between the first energy absorbing box 1 and the second energy absorbing box 2, and is also beneficial to the stability of the cross force transmission structure.

[0088] Fourth, multiple intersecting force transmission paths are formed between at least three first cross beams 12 and multiple intersecting first reinforcing ribs 13, and multiple intersecting force transmission paths are formed between at least three second cross beams 22 and multiple intersecting second reinforcing ribs 23, so that the energy absorption box assembly 100 forms an interconnected force transmission structure, which improves the stability of the energy absorption box assembly 100 in crushing and energy absorption, and can absorb more collision energy, thereby effectively supporting the achievement of safety performance.

[0089] Fifth, the energy absorption box assembly 100 uses a non-process extrusion direction as the energy absorption and collapse direction of the energy absorption box assembly 100, and the energy absorption and collapse direction is the front and rear direction of the vehicle, which is no longer subject to process restrictions and can achieve lightweight design.

[0090] Sixth, the first reinforcing rib 13 on the outside of the first energy absorption box 1 is a first bending rib, and the first bending portions 18 at both ends of the first bending rib are fitted one-to-one with the second bending portions 27 at both ends of the second bending rib on the inside of the second energy absorption box 2, which can improve the positioning and installation efficiency between the first energy absorption box 1 and the second energy absorption box 2, and can better improve the connection reliability of the first energy absorption box 1 and the second energy absorption box 2, and thus can participate in collision force transmission and better carry out cross force transmission.

[0091] Seventh, the first connecting plate 11 and the second connecting plate 21 provide a larger connecting area, which can ensure that the energy absorption box assembly 100 is stably installed between the vehicle body 200 and the anti-collision beam 300, and better improve the stability of the crush performance.

[0092] Eighth, the multiple first reinforcing ribs 13 of two adjacent layers form a first plate thickness portion 14 on the first cross beam 12 at the intersection, and a first through hole structure 15 is opened in the first plate thickness portion 14. Similarly, a second through hole structure 25 is opened in the second plate thickness portion 24, which can avoid local material thickness accumulation, thereby achieving a graded energy absorption effect.

[0093] In this way, when the anti-collision beam 300 is hit by a collision, more collision energy can be effectively absorbed through multiple cross force transmission paths, thereby improving the anti-collision performance of the vehicle, and further strongly supporting the achievement of installation performance.

[0094] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0096] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An energy absorption box assembly, characterized in that: include: The first energy absorption box; The second energy absorbing box is detachably arranged on the outside of the first energy absorbing box. The first energy absorbing box and / or the second energy absorbing box are hollow box bodies. The hollow box bodies extend in the left-right direction and have multiple chambers formed therein. The first energy absorbing box and the second energy absorbing box have different structural strengths.

2. The energy absorption box assembly according to claim 1, characterized in that: An opening is arranged on the outer side of the first energy absorbing box, and the second energy absorbing box is arranged in the opening.

3. The energy absorption box assembly according to claim 1, characterized in that: The first energy absorption box comprises: a first connecting plate and at least three first cross beams spaced apart in the up-down direction, one end of at least three first cross beams is connected to the first connecting plate, a plurality of first reinforcing ribs are arranged between two adjacent first cross beams, and two adjacent first cross beams are connected to the first reinforcing ribs at the ends away from the first connecting plate; and / or, The second energy absorption box includes: a second connecting plate and at least three second beams spaced apart in the up-down direction, one end of at least three second beams is connected to the second connecting plate, a plurality of second reinforcing ribs are arranged between two adjacent second beams, and two adjacent second beams are connected to the second reinforcing ribs at the ends facing away from the second connecting plate, a side of the first energy absorption box facing away from the first connecting plate is connected to a side of the second energy absorption box facing away from the second connecting plate, and at least three first beams correspond one to one with at least three second beams.

4. The energy absorption box assembly according to claim 3 is characterized in that: A first connection portion is provided on the first reinforcing rib at the end of the first energy absorbing box away from the first connecting plate, and a second connection portion correspondingly connected to the first connection portion is provided on the second reinforcing rib at the end of the second energy absorbing box away from the second connecting plate.

5. The energy absorption box assembly according to claim 4, characterized in that: The first reinforcing rib at the end of the first energy absorbing box away from the first connecting plate is a first bending rib, and both ends of the first bending rib respectively have first bending portions bent in opposite directions, and the first bending portions form the first connecting portion; and, The second reinforcing rib at the end of the second energy absorption box away from the second connecting plate is a second bending rib, and both ends of the second bending rib respectively have second bending portions bent in opposite directions, and the second bending portions form the second connecting portion, and the first bending portions and the second bending portions are fitted one-to-one.

6. The energy absorption box assembly according to claim 4 or 5, characterized in that: The first connection portion has a first connection surface, the second connection portion has a second connection surface, and the first connection surface and the second connection surface are vertically arranged along the up-down direction.

7. The energy absorption box assembly according to claim 3, characterized in that: The plurality of first reinforcing ribs between two adjacent first cross beams form a single layer of reinforcing ribs, and the plurality of first reinforcing ribs in two adjacent layers are arranged crosswise with each other in the up-down direction; and / or, The plurality of second reinforcing ribs between two adjacent second cross beams form a single layer of reinforcing ribs, and the plurality of second reinforcing ribs in two adjacent layers are arranged to cross each other in the up-and-down direction.

8. The energy absorption box assembly according to claim 7, characterized in that: The plurality of first reinforcing ribs of two adjacent layers intersect each other in the up-down direction to form a first plate thickness portion on the first crossbeam at the intersection, and a first through hole structure is provided at the center of the first plate thickness portion; and / or, The plurality of second reinforcing ribs of two adjacent layers intersect each other in the up-down direction to form a second plate thickness portion on the second cross beam at the intersection, and a second through hole structure is provided at the center of the second plate thickness portion.

9. The energy absorption box assembly according to claim 1, characterized in that: The hollow box body includes: a connecting plate and at least three beams spaced apart in the up-down direction, one end of at least three of the beams is connected to the connecting plate, a plurality of reinforcing ribs are arranged between two adjacent beams to form a single layer of reinforcing ribs, the plurality of reinforcing ribs of two adjacent layers cross each other in the up-down direction, and the two adjacent beams are connected to the reinforcing ribs at the ends away from the connecting plate.

10. A vehicle, characterized in that: include: Car body; Anti-collision beam; And the energy absorption box assembly according to any one of claims 1 to 9, wherein a plurality of the energy absorption box assemblies are arranged between the vehicle body and the anti-collision beam, the first energy absorption box is connected to the vehicle body, and the second energy absorption box is connected to the anti-collision beam.

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