Automobile collision energy absorption box

Abstract

The invention provides an automobile collision energy absorption box, and belongs to the technical field of automobile energy absorption parts, the automobile collision energy absorption box comprises an outer sleeve shell component, an inner insertion shell component, a filling layer, a gradual change energy absorption component and a spiral energy absorption component, the outer sleeve shell component is of an aluminum alloy structure as a whole, and the inner insertion shell component is of a mechanical engineering plastic structure as a whole; the special-shaped arc-shaped vertical plates and the tensile wires sewn between the special-shaped arc-shaped vertical plates can form elastic supporting force and energy absorption capacity of a contour structure formed by the special-shaped arc-shaped vertical plates, so that a cylindrical clamping table and a groove-shaped clamping table can be clamped in an inwards-concave inserting groove and an outwards-convex clamping column at the same height respectively, and a reusable energy absorption structure is formed; the device can be used for absorbing energy for slight vehicle collision; and a telescopic aluminum alloy structure formed by the wave vertical plates, the wave inner arc plates and the wave outer arc plates is used in cooperation with the gradual change energy absorption components and the spiral energy absorption components, so that a multiple energy absorption structure can be formed, and the energy absorption device is suitable for collision energy absorption of large vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive energy-absorbing components, and particularly to an automotive crash energy-absorbing box. Background Art

[0002] The automotive crash energy-absorbing box is installed between the cross beam and the longitudinal beam of the vehicle frame. When a vehicle collision occurs, the energy-absorbing box can quickly collapse and deform, absorb the impact energy, and play a role in shock absorption and buffering, thereby protecting the personal safety of the passengers in the vehicle, protecting the system parts on the vehicle body, and reducing the maintenance cost of the vehicle owner. Therefore, the energy-absorbing box is an extremely important device in the vehicle body system.

[0003] Currently, most of the traditional energy-absorbing boxes are made of aluminum alloy structures formed by integral stamping, and stress holes are opened on the side walls of the structure to facilitate its deformation. During on-site installation, foam can also be filled inside the structural cavity. However, although this kind of energy-absorbing box is easy to process and manufacture and has a low cost, in actual collisions, its energy-absorbing effect only comes from the aluminum alloy stamping structure itself, and the effect of deformation and energy absorption is very limited. Summary of the Invention

[0004] The purpose of the present invention is an automotive crash energy-absorbing box, which not only connects the corrugated vertical plate and the corrugated inner arc plate to expand the area of its energy-absorbing structure, but also forms an elastic snap connection through the cylindrical clamping platform at the head end of the inner insert shell member and the concave slots distributed along the corrugation at different height positions on the inner side of the corrugated vertical plate. It can not only be reused for minor collisions, but also form multiple energy-absorbing effects for larger collisions.

[0005] The purpose of the present invention is achieved through the following technical solution: an automotive crash energy-absorbing box, comprising an outer shell member, an inner insert shell member, a filling layer, a gradient energy-absorbing member, and a spiral energy-absorbing member. The outer shell member includes a corrugated vertical plate, a corrugated inner arc plate, and a concave slot. The inner insert shell member includes a special-shaped arc-shaped vertical plate and a tensile wire.

[0006] The quadrilateral structure composed of wavy vertical plates is fixedly connected to one side of the outer shell member. The wavy inner arc plate is concavely connected to the corner positions between the wavy vertical plates. The concave inner slot is located inside the wavy vertical plates. The special-shaped arc-shaped vertical plates are connected to one side of the inner insert shell member in a circumferential array. The adjacent two groups of special-shaped arc-shaped vertical plates are stitched together by tensile silk threads. The special-shaped arc-shaped vertical plates have an outwardly inclined arc. The cross-sectional contour formed by connecting several groups of special-shaped arc-shaped vertical plates is a geometric scaling of the cross-sectional contour formed by connecting the wavy vertical plates and the wavy inner arc plate. Cylindrical clamping platforms are fixedly connected to both sides of the outer top end of each group of special-shaped arc-shaped vertical plates, and the cylindrical clamping platforms on the outside of the special-shaped arc-shaped vertical plates can be simultaneously clamped in the concave inner slots at the same height of different wavy vertical plates. The filling layer is filled inside the wavy inner arc plate. The gradient energy-absorbing member and the spiral energy-absorbing member are both structures matching the curved surfaces of the special-shaped arc-shaped vertical plates. The gradient energy-absorbing member is a planar energy-absorbing structure, and the spiral energy-absorbing member is a mesh energy-absorbing structure. The gradient energy-absorbing member is installed and placed outside the contour formed by the special-shaped arc-shaped vertical plates, and the spiral energy-absorbing member is installed and placed inside the contour formed by the wavy vertical plates.

[0007] The usage process of the technical solution of the present invention is as follows:

[0008] The energy-absorbing boxes are installed in pairs between the longitudinal beam and the cross beam of the vehicle frame. The inner insert shell member is fixedly connected to one side of the cross beam, and the outer shell member is fixedly connected to one end of the longitudinal beam. Before the installation is completed, the inner insert shell member and the outer shell member have been connected in pairs. According to the distance between the longitudinal beam and the cross beam, the cylindrical clamping platforms in the inner insert shell member are clamped in the concave inner slots at the corresponding heights on the inner side of the wavy vertical plates to facilitate adapting to the installation distance between the longitudinal beam and the cross beam. Before the inner insert shell member and the outer shell member are completely connected, the spiral energy-absorbing member has been placed inside the contour formed by the wavy vertical plates;

[0009] With the production and connection of the special-shaped arc-shaped vertical plates and the inner insert shell member, the gradient energy-absorbing member is installed and placed outside the contour formed by the special-shaped arc-shaped vertical plates;

[0010] When the vehicle cross beam is subjected to a small frontal extrusion collision, the elastic support structure formed by the connection between the special-shaped arc-shaped vertical plates and the tensile silk threads can drive the cylindrical clamping platforms to elastically snap into the concave inner slots at different height positions along the bending path of the wavy vertical plates, thereby releasing the extrusion collision force and achieving the purpose of energy absorption. At the same time, the movement of the special-shaped arc-shaped vertical plates and the cylindrical clamping platforms towards the outer shell member will also squeeze the spiral energy-absorbing member located inside the contour formed by the wavy vertical plates, and utilize the mesh structure of the spiral energy-absorbing member itself to achieve the purpose of combined energy absorption;

[0011] When the automotive crossbeam is subjected to a large frontal extrusion collision, the cylindrical clamping platform will be pushed to the limit position of the extrusion spiral energy-absorbing member. The contour structure composed of the special-shaped arc-shaped vertical plates will sink into the internal contour structure composed of the wavy vertical plates and the wavy inner arc plates. As the collision force continues to squeeze, on the one hand, the complete wavy structure of the wavy vertical plates and the wavy inner arc plates themselves can achieve the purpose of energy absorption. While the wavy inner arc plate is being squeezed and deformed, the filling layer can also play a role in energy absorption; on the other hand, the special-shaped arc-shaped vertical plates will be squeezed and deformed, and the tensile silk threads connected between the special-shaped arc-shaped vertical plates will form a pulling effect, which can also achieve the purpose of energy absorption; and synchronously, the special-shaped arc-shaped vertical plates will extrude the gradient energy-absorbing member outward, and using the planar structure of the gradient energy-absorbing member itself can also form an energy-absorbing effect.

[0012] By adopting the above technical solutions, the present invention can achieve the following beneficial effects:

[0013] (1) The present invention not only fixedly connects the wavy vertical plates with a quadrilateral structure on one side of the outer casing member, but also installs the wavy inner arc plates with an arc-shaped structure at the corner positions connected to the wavy vertical plates. The purpose of setting the wavy inner arc plates is not only to form an integral wavy structure with the wavy vertical plates, increase the cross-sectional contour area during force application, and improve the energy absorption effect, but also to place a filling layer inside the wavy inner arc plates. By using the filling layer, the anti-extrusion deformation ability of the wavy inner arc plates themselves can be improved flexibly when the wavy inner arc plates are extruded outward;

[0014] (2) The present invention not only sets the special-shaped arc-shaped vertical plates into a special-shaped structure with a certain outward inclination arc, but also makes the cross-sectional contour composed of several groups of special-shaped arc-shaped vertical plates be an equilateral scaling of the cross-sectional contour composed of the wavy vertical plates and the wavy inner arc plates. The purpose is not only to enable the cylindrical clamping platform connected to the outer top end of the special-shaped arc-shaped vertical plates to move along the bending path of the wavy vertical plates to the concave slots at different heights when being collided and squeezed, but also to sew tensile silk threads with certain toughness between the special-shaped arc-shaped vertical plates, so that the tensile silk threads can form an integral body with the special-shaped arc-shaped vertical plates. The rigidity of the special-shaped arc-shaped vertical plates themselves can be used as elastic support, and the soft toughness of the tensile silk threads themselves can form a flexible connection, complementing each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of an automotive collision energy-absorbing box provided by the present invention;

[0017] Figure 2 Schematic three-dimensional structure diagram of the outer shell member of the present invention;

[0018] Figure 3 Schematic plan structure diagram of the outer shell member of the present invention;

[0019] Figure 4 Schematic three-dimensional structure diagram of the inner inserted shell member of the present invention;

[0020] Figure 5 Schematic plan structure diagram of the inner inserted shell member of the present invention;

[0021] Figure 6 Schematic installation structure diagram of the filling layer of the present invention;

[0022] Figure 7 Schematic exploded structure diagram of the filling layer of the present invention;

[0023] Figure 8 Schematic installation structure diagram of the gradually variable energy absorption member of the present invention;

[0024] Figure 9 Schematic structure diagram of the gradually variable energy absorption member of the present invention;

[0025] Figure 10 Schematic installation structure diagram of the spiral energy absorption member of the present invention;

[0026] Figure 11 Schematic exploded structure diagram of the spiral energy absorption member of the present invention;

[0027] Figure 12 Schematic diagram of the physical object of the outer shell member of the present invention;

[0028] Figure 13 Schematic diagram of the physical object of the gradually variable energy absorption member of the present invention.

[0029] Reference numerals:

[0030] 1. Outer shell member; 101. Outer shell bottom plate; 102. Wavy vertical plate; 103. Wavy inner arc plate; 104. Wavy outer arc plate; 105. Stress groove; 106. Concave insertion slot; 107. Convex clamping post;

[0031] 2. Inner inserted shell member; 201. Inner inserted bottom plate; 202. Special-shaped arc-shaped vertical plate; 203. Thread-passing hole; 204. Tensile silk thread; 205. Cylindrical clamping platform; 206. Grooved clamping platform; 207. Partition groove;

[0032] 3. Filling layer; 301. Wavy filling tube; 302. Wavy side seat; 303. Inner spiral filling column;

[0033] 4. Gradual energy absorption member; 401. Inner arc plate; 402. Outer arc plate; 403. Connecting arc plate; 404. Connecting vertical rib;

[0034] 5. Spiral energy absorption member; 501. Special-shaped spiral frame; 502. Arc-shaped rib. Specific implementation manner

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] As Figures 1-13 shown, on one side of an outer shell member 1 of an automobile collision energy absorption box, a quadrilateral structure composed of wave-shaped vertical plates 102 is fixedly connected. A wave-shaped inner arc plate 103 is concave-connected at the corner positions between the wave-shaped vertical plates 102. Inner concave slots 106 are located inside the wave-shaped vertical plates 102 and are arranged and distributed along the bending path of the wave-shaped vertical plates 102. Special-shaped arc-shaped vertical plates 202 are connected to one side of an inner insertion shell member 2 in a circumferential array. Adjacent groups of special-shaped arc-shaped vertical plates 202 are stitched through tensile wires 204. The special-shaped arc-shaped vertical plates 202 have an outwardly inclined arc, which enables the special-shaped arc-shaped vertical plates 202 themselves to form a certain elastic support to withstand the extrusion force formed by an external collision. And through the tensile wires 204 between the special-shaped arc-shaped vertical plates 202, it can not only form a protective effect on the special-shaped arc-shaped vertical plates 202, so that several groups of special-shaped arc-shaped vertical plates 202 made of hard materials are connected into an integral structure through the tensile wires 204, but also improve the elastic support effect of the special-shaped arc-shaped vertical plates 202 and enhance its energy absorption effect;

[0038] The cross-sectional contour formed by the connection of the array of special-shaped arc-shaped vertical plates 202 is a geometric scaling of the cross-sectional contour formed by the connection of the wave-shaped vertical plate 102 and the wave-shaped inner arc plate 103. At both sides of the outer top end of each group of special-shaped arc-shaped vertical plates 202, there are fixedly connected cylindrical clamping platforms 205, and the cylindrical clamping platforms 205 on the outer side of the special-shaped arc-shaped vertical plates 202 can be simultaneously clamped in the concave slots 106 at the same height on different wave-shaped vertical plates 102. The filling layer 3 is filled in the wave-shaped inner arc plate 103, which can serve the dual purposes of supporting the slow deformation of the wave-shaped inner arc plate 103 and absorbing energy after being collided and extruded. Both the gradient energy-absorbing member 4 and the spiral energy-absorbing member 5 are structures matching the curved arc surface of the special-shaped arc-shaped vertical plate 202. The gradient energy-absorbing member 4 is a planar energy-absorbing structure, and the spiral energy-absorbing member 5 is a mesh energy-absorbing structure. Moreover, the gradient energy-absorbing member 4 is installed outside the contour formed by the special-shaped arc-shaped vertical plates 202, and the spiral energy-absorbing member 5 is installed inside the contour formed by the wave-shaped vertical plates 102.

[0039] The working principle is as follows:

[0040] This energy-absorbing box is installed in pairs between the longitudinal beam and the cross beam of the vehicle frame. The inner insertion shell member 2 is fixedly connected to one side of the cross beam, and the outer shell member 1 is fixedly connected to one end of the longitudinal beam, which is convenient for shrinkage deformation during the collision process;

[0041] Before the installation is completed, the inner insertion shell member 2 and the outer shell member 1 are already connected in pairs. According to the distance between the longitudinal beam and the cross beam, the cylindrical clamping platform 205 in the inner insertion shell member 2 is clamped in the concave slot 106 at the corresponding height on the inner side of the wave-shaped vertical plate 102 to facilitate adapting to the installation distance between the longitudinal beam and the cross beam. And before the inner insertion shell member 2 and the outer shell member 1 are completely connected, the spiral energy-absorbing member 5 has been placed inside the contour formed by the wave-shaped vertical plates 102;

[0042] Similarly, with the fabrication and connection of the special-shaped arc-shaped vertical plate 202 and the inner insertion shell member 2, the gradient energy-absorbing member 4 is installed outside the contour formed by the special-shaped arc-shaped vertical plates 202;

[0043] When the vehicle cross beam is subjected to a small frontal extrusion collision, the elastic support structure formed by the connection of the special-shaped arc-shaped vertical plate 202 and the tensile wire 204 can drive the cylindrical clamping platform 205 to elastically snap into the concave slots 106 at different height positions along the bending path of the wave-shaped vertical plate 102, thereby releasing the extrusion collision force and achieving the purpose of energy absorption;

[0044] At the same time, the movement of the special-shaped arc-shaped vertical plate 202 and the cylindrical clamping platform 205 towards the outer shell member 1 will also exert extrusion on the spiral energy-absorbing member 5 located inside the contour formed by the wave-shaped vertical plates 102. By utilizing the mesh structure of the spiral energy-absorbing member 5 itself, the purpose of combined energy absorption is achieved;

[0045] And after the collision is completed, the inner insert shell member 2 can be moved away from the outer shell member 1 to reset the energy absorption box. That is to say, in the face of a minor collision, the energy absorption box can be reused;

[0046] When the automobile crossbeam is subjected to a large frontal extrusion collision, the cylindrical boss 205 will be pushed to the limit position of the extrusion spiral energy absorption member 5, and the contour structure composed of the special-shaped arc-shaped vertical plates 202 will sink into the contour structure composed of the corrugated vertical plate 102 and the corrugated inner arc plate 103. With the continuous extrusion of the collision force, on the one hand, the complete corrugated structure of the corrugated vertical plate 102 and the corrugated inner arc plate 103 itself can achieve the purpose of energy absorption, and while the corrugated inner arc plate 103 is being extruded and deformed, the filling layer 3 can also play a role in energy absorption; on the other hand, the special-shaped arc-shaped vertical plates 202 will be extruded and deformed, and the tensile silk threads 204 connected between the special-shaped arc-shaped vertical plates 202 will form a pulling effect, which can also achieve the purpose of energy absorption; and synchronously, the special-shaped arc-shaped vertical plates 202 will extrude the gradient energy absorption member 4 outward, and using the planar structure of the gradient energy absorption member 4 itself, an energy absorption effect can also be formed.

[0047] The specific structures of the outer shell member 1 and the inner insert shell member 2 are as Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown. The corrugated vertical plate 102 and the corrugated inner arc plate 103 are both fixedly connected to the side surface of the outer shell bottom plate 101. The corrugated outer arc plate 104 is located outside the corrugated inner arc plate 103 and is also fixedly connected to the side surface of the outer shell bottom plate 101;

[0048] And the corrugated outer arc plate 104 and the corrugated inner arc plate 103 on the same side can form a complete circular contour;

[0049] The outward convex column 107 is located outside the complete circular contour structure composed of the corrugated outer arc plate 104 and the corrugated inner arc plate 103 and is arranged along the bending path of the corrugated outer arc plate 104 and the corrugated inner arc plate 103;

[0050] The outer shell bottom plate 101, the corrugated vertical plate 102, the corrugated inner arc plate 103 and the corrugated outer arc plate 104 are all made of aluminum alloy and are fixed by welding;

[0051] The inner insert shell member 2 is a mechanical engineering plastic integrally injection-molded. The special-shaped arc-shaped vertical plates 202 are fixedly connected to one side of the inner insert bottom plate 201 in a circumferential array. A dividing groove 207 is provided between adjacent groups of special-shaped arc-shaped vertical plates 202. The purpose of setting the dividing groove 207 is to enable each group of special-shaped arc-shaped vertical plates 202 to form an independent rigid elastic structure and also provide space for the arrangement of the tensile silk threads 204;

[0052] Through holes 203 are formed at both ends of each group of special-shaped arc-shaped vertical plates 202, and the through holes 203 in two adjacent groups of special-shaped arc-shaped vertical plates 202 can form a spiral path for passing through the tensile silk thread 204, which is convenient for suturing and connecting the tensile silk thread 204 in a spiral manner between the two groups of special-shaped arc-shaped vertical plates 202;

[0053] Moreover, mounting holes are formed at the corners of the main body of the outer sleeve bottom plate 101 and the wave-shaped vertical plate 102, which is convenient for fixed connection with the longitudinal, transverse and cross beams of the vehicle frame;

[0054] And a grooved clamping platform 206 is fixedly connected to the middle of the outer top end of the special-shaped arc-shaped vertical plate 202, and the outer surface of the grooved clamping platform 206 is matched and clamped with the outer convex clamping column 107. Each group of concave slots 106 and each group of outer convex clamping columns 107 are successively located at the same height position, and the grooved clamping platform 206 and the cylindrical clamping platform 205 are located at the same height position. It can be ensured that while the cylindrical clamping platform 205 is clamped with the concave slot 106 at a certain height position, the grooved clamping platform 206 is also clamped with the outer convex clamping column 107 at this height position, so as to improve the elastic support ability when the special-shaped arc-shaped vertical plate 202 is squeezed and deformed and increase its energy absorption effect.

[0055] The specific structure of the filling layer 3 is as Figure 6 and Figure 7 shown. The filling layer 3 is made of engineering plastics as a whole. The wave-shaped filling tube 301 is placed inside the circular contour structure composed of the wave-shaped inner arc plate 103 and the wave-shaped outer arc plate 104, and the wave-shaped structure on the side wall of the wave-shaped filling tube 301 fits with the wave-shaped side walls of the wave-shaped inner arc plate 103 and the wave-shaped outer arc plate 104, so that after the wave-shaped filling tube 301 is fixed with the wave-shaped inner arc plate 103 and the wave-shaped outer arc plate 104 to the circular contour structure composed of the wave-shaped inner arc plate 103 and the wave-shaped outer arc plate 104 along with the outer sleeve bottom plate 101, it will not easily come out and can form a composite whole;

[0056] The inner spiral filling column 303 is fixedly connected inside the wave-shaped filling tube 301. The inner spiral filling column 303 and the wave-shaped filling tube 301 are connected by gluing. By using the structure of the inner spiral filling column 303 itself, the lateral energy absorption effect of the wave-shaped filling tube 301 can be improved;

[0057] Moreover, a stress groove 105 is provided at the middle position of the integral circular contour formed by the wave outer arc plate 104 and the wave inner arc plate 103. Both ends of the outer side wall of the wave filling tube 301 are fixedly connected with wave side seats 302. The wave side seats 302 and the wave filling tube 301 are integrally formed. After the wave filling tube 301 is inserted into the wave inner arc plate 103 and the wave outer arc plate 104 in place, the wave side seats 302 on the same side can just be snapped into the stress groove 105. The purpose of cutting the wave inner arc plate 103 and the wave outer arc plate 104 into a non-contact structure through the stress groove 105 is that after the wave side seats 302 made of mechanical engineering plastic are filled between the wave inner arc plate 103 and the wave outer arc plate 104 made of aluminum alloy material, it can not only reduce the material weight, but also improve the elasticity and energy absorption capacity of the wave inner arc plate 103 and the wave outer arc plate 104.

[0058] The specific structure of the gradient energy absorption member 4 is as Figure 8 and Figure 9 shown. The inner surface of the inner arc plate 401 is attached to the outer surface of the contour structure formed by the special-shaped arc-shaped vertical plate 202. The outer arc plate 402 is located outside the inner arc plate 401 and does not exceed the outer contour coverage range of the special-shaped arc-shaped vertical plate 202. The purpose is that the setting of the gradient energy absorption member 4 will not affect the insertion of the contour structure formed by the special-shaped arc-shaped vertical plate 202 into the contour structure formed by the wave vertical plate 102 and the wave inner arc plate 103.

[0059] A number of connecting arc plates 403 are evenly arranged between the inner arc plate 401 and the outer arc plate 402. The connecting vertical ribs 404 are horizontally cross-connected between the inner arc plate 401, the connecting arc plates 403 and the outer arc plate 402. The purpose is to connect the inner arc plate 401, the connecting arc plates 403 and the outer arc plate 402 to form a unified elastic whole.

[0060] Moreover, in order to install and sleeve the gradient energy absorption member 4 onto the outer side of the contour structure formed by the special-shaped arc-shaped vertical plate 202, the gradient energy absorption member 4 is made into two groups of open structures that are symmetrically distributed during production. By aligning the two groups of open structures and gluing them, the gradient energy absorption member 4 can be used as an integral structure to sleeve the contour structure formed by the special-shaped arc-shaped vertical plate 202.

[0061] Moreover, the purpose of setting the gradient energy absorption member 4 as a planar energy absorption structure is that, firstly, the inner arc plate 401, the connecting arc plates 403 and the outer arc plate 402 are all curved surface structures with the same bending radian as the special-shaped arc-shaped vertical plate 202, which can assist the special-shaped arc-shaped vertical plate 202 and increase the support elasticity of the special-shaped arc-shaped vertical plate 202. Secondly, the inner arc plate 401, the connecting arc plates 403 and the outer arc plate 402 can be connected by the connecting vertical ribs 404 to form a multi-layer planar structure, and a curved surface cavity structure that bends outward can be formed between them, improving the energy absorption effect of the special-shaped arc-shaped vertical plate 202.

[0062] The specific structure of the spiral energy-absorbing member 5 is as follows Figure 10 and Figure 11 shown. The special-shaped spiral frame 501 is a special-shaped spiral structure corresponding to the head end of the contour formed by the special-shaped arc-shaped vertical plate 202. The arc-shaped ribs 502 are evenly arranged and fixedly connected between the spiral bodies of the special-shaped spiral frame 501; and the two head ends of the special-shaped spiral frame 501 gradually decrease towards the middle. The purpose is that after being connected with the arc-shaped ribs 502 of the arc-shaped structure to form a whole, not only can the spiral structure of the special-shaped spiral frame 501 itself form the longitudinal elasticity and energy-absorbing ability, but also the arc-shaped structure of the evenly distributed arc-shaped ribs 502 can form the elasticity and energy-absorbing ability of the assembly. Thus, a good energy-absorbing effect is formed by the unique and lightweight structure formed by the arc-shaped ribs 502 and the special-shaped spiral frame 501.

[0063] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automobile collision energy absorption box, comprising an outer shell component (1), characterized in that: It also includes an inner shell component (2), a filling layer (3), a gradual energy absorption component (4) and a spiral energy absorption component (5); The outer shell component (1) comprises a wave upright plate (102) and a wave inner arc plate (103); the quadrilateral structure formed by the wave upright plate (102) is fixedly connected to one side of the outer shell component (1); the wave inner arc plate (103) is concavely connected to the corner position between the wave upright plates (102); the head end of the inner insert shell component (2) can be elastically inserted into the curved wave groove of the wave upright plate (102); the filling layer (3) is pre-set in the wave inner arc plate (103); the gradual energy absorption component (4) is sleeved on the outside of the inner insert shell component (2); and the spiral energy absorption component (5) is located inside the contour formed by the wave upright plates (102).

2. The automobile collision energy absorption box according to claim 1, characterized in that: The outer shell component (1) also includes an inner concave slot (106), and the inner shell component (2) includes a special-shaped arc-shaped vertical plate (202) and a tensile wire (204). The inner concave slot (106) is located on the inner side of the wavy vertical plate (102). The special-shaped arc-shaped vertical plates (202) are connected to one side of the inner shell component (2) in a circular array. Two adjacent groups of special-shaped arc-shaped vertical plates (202) are sewn together by the tensile wire (204). The special-shaped arc-shaped vertical plates (202) have an outward curvature. The cross-sectional profile formed by connecting the array of special-shaped arc-shaped vertical plates (202) is the cross-sectional profile formed by connecting the wavy vertical plate (102) and the wavy inner arc plate (103). The invention relates to a geometrically scaled structure, wherein both sides of the outer top of each group of special-shaped arc-shaped upright plates (202) are fixedly connected with cylindrical clamping tables (205), and the cylindrical clamping tables (205) on the outer sides of the special-shaped arc-shaped upright plates (202) can be simultaneously clamped in the concave slots (106) at the same height of different wave upright plates (102), and the gradual energy absorption component (4) and the spiral energy absorption component (5) are both structures matching the curved surface of the special-shaped arc-shaped upright plates (202), the gradual energy absorption component (4) is a planar energy absorption structure, and the spiral energy absorption component (5) is a mesh energy absorption structure, and the gradual energy absorption component (4) is installed and placed outside the contour formed by the special-shaped arc-shaped upright plates (202).

3. The automobile collision energy absorption box according to claim 2, characterized in that: The outer shell component (1) also includes an outer shell bottom plate (101), a wave outer arc plate (104) and an outer convex clamping column (107); the wave vertical plate (102) and the wave inner arc plate (103) are both fixedly connected to the side of the outer shell bottom plate (101); the wave outer arc plate (104) is located on the outside of the wave inner arc plate (103) and is both fixedly connected to the side of the outer shell bottom plate (101); the wave outer arc plate (104) and the wave inner arc plate (103) on the same side can form a full circular contour; the outer convex clamping column (107) is located on the outside of the full circular contour structure formed by the wave outer arc plate (104) and the wave inner arc plate (103).

4. The automobile collision energy absorption box according to claim 3, characterized in that: A groove-shaped card platform (206) is fixedly connected to the middle of the outer top of the special-shaped arc-shaped vertical plate (202), and the outer surface of the groove-shaped card platform (206) is matched and card-engaged with the outer convex card column (107), each group of inner concave slots (106) and each group of outer convex card columns (107) are sequentially located at the same height position, and the groove-shaped card platform (206) and the cylindrical card platform (205) are located at the same height position.

5. The automobile collision energy absorption box according to claim 2, 3 or 4, characterized in that: The insert shell component (2) further comprises an insert bottom plate (201), and the irregularly shaped arc-shaped upright plates (202) are fixedly connected to one side of the insert bottom plate (201) in a circular array, and a dividing groove (207) is provided between two adjacent groups of irregularly shaped arc-shaped upright plates (202), and threading holes (203) are provided at both ends of each group of irregularly shaped arc-shaped upright plates (202).

6. The automobile collision energy absorption box according to claim 3 or 4, characterized in that: The filling layer (3) comprises a wave filling tube (301) and an inner spiral filling column (303); the wave filling tube (301) is placed inside a full-circle profile structure formed by a wave inner arc plate (103) and a wave outer arc plate (104); and the inner spiral filling column (303) is fixedly connected inside the wave filling tube (301).

7. The automobile collision energy absorption box according to claim 6, characterized in that: A stress groove (105) is provided in the middle of the full circular profile formed by the wave outer arc plate (104) and the wave inner arc plate (103), and wave side seats (302) are fixedly connected to both ends of the outer side wall of the wave filling tube (301).

8. The automobile collision energy absorption box according to claim 2, 3, 4 or 7, characterized in that: The gradual energy absorption component (4) comprises an inner arc plate (401), an outer arc plate (402) and connecting ribs (404); the inner surface of the inner arc plate (401) is in contact with the outer surface of the contour structure composed of the special-shaped arc-shaped vertical plates (202); the outer arc plate (402) is located outside the inner arc plate (401); an array of connecting arc plates (403) is arranged between the inner arc plate (401) and the outer arc plate (402); and the connecting ribs (404) are horizontally intersected between the inner arc plate (401), the connecting arc plate (403) and the outer arc plate (402).

9. The automobile collision energy absorption box according to claim 1, 2, 3, 4 or 7, characterized in that: The spiral energy absorbing component (5) comprises a special-shaped spiral frame (501) and arcuate ribs (502); the special-shaped spiral frame (501) is a special-shaped spiral structure; the arcuate ribs (502) are arranged and fixedly connected between the spiral bodies of the special-shaped spiral frame (501).

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