Vehicle body structure and vehicle

Abstract

The utility model discloses a vehicle body structure and a vehicle. The vehicle body structure comprises a doorsill beam, a first reinforcing part and a mounting longitudinal beam, the mounting longitudinal beam and the doorsill beam are arranged at intervals in the width direction of a vehicle body, and the mounting longitudinal beam is connected to the doorsill beam through the first reinforcing part. According to the vehicle body structure, the first reinforcing part is additionally arranged between the doorsill beam and the mounting longitudinal beam, the force transmission path between the doorsill beam and the mounting longitudinal beam is increased, force can be transmitted between the doorsill beam and the mounting longitudinal beam through the first reinforcing part in the side column collision working condition of the vehicle, impact energy borne by the doorsill beam and the mounting longitudinal beam can be reduced, and the service life of the vehicle is prolonged. Therefore, the invasion amount of the doorsill beam and the mounting longitudinal beam to the mounting space on the inner side of the mounting longitudinal beam is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle body structure and a vehicle with the same. BACKGROUND

[0002] In the related art, a vehicle includes a rocker beam and a battery pack mounting longitudinal beam, the battery pack mounting longitudinal beam is located between the two rocker beams, and a battery pack is mounted on the battery pack mounting longitudinal beam. In a vehicle side column impact condition, the force transmission path of the lower vehicle body is single, and the battery pack mounting longitudinal beam and the rocker beam are subjected to a large impact energy, thereby causing the battery pack to excessively intrude in the Y direction (i.e., the vehicle body width direction). CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the above technical problems in the prior art to some extent. To this end, the present application provides a vehicle body structure which can increase the force transmission path between the rocker beam and the mounting longitudinal beam.

[0004] The present application also provides a vehicle with the above vehicle body structure.

[0005] The vehicle body structure according to an embodiment of the present application includes a rocker beam, a first reinforcing member, and a mounting longitudinal beam, the mounting longitudinal beam and the rocker beam are spaced apart along the vehicle body width direction, and the mounting longitudinal beam is connected to the rocker beam through the first reinforcing member.

[0006] According to the vehicle body structure of the present application, the first reinforcing member is added between the rocker beam and the mounting longitudinal beam, thereby increasing the force transmission path between the rocker beam and the mounting longitudinal beam. In a vehicle side column impact condition, the force can be transmitted between the rocker beam and the mounting longitudinal beam through the first reinforcing member, which is conducive to reducing the impact energy received by the rocker beam and the mounting longitudinal beam, thereby reducing the intrusion of the rocker beam and the mounting longitudinal beam into the inside mounting space of the mounting longitudinal beam.

[0007] According to some embodiments of the present application, the first reinforcing member extends along the vehicle body width direction.

[0008] According to some embodiments of the present application, the number of first reinforcing members between the rocker beam and the mounting longitudinal beam is multiple.

[0009] According to some embodiments of the present application, the first reinforcing member is detachably connected to the rocker beam and detachably connected to the mounting longitudinal beam.

[0010] According to some embodiments of the present application, an energy absorption structure is arranged between the rocker beam and the mounting longitudinal beam.

[0011] According to some embodiments of the present application, the vehicle body structure further comprises a second reinforcing member connecting the rocker beam and the mounting longitudinal beam, and the energy absorption structure is arranged on the second reinforcing member.

[0012] According to some embodiments of the present application, the second reinforcing member is welded to the rocker beam, and the second reinforcing member is welded to the mounting longitudinal beam.

[0013] According to some embodiments of the present application, the energy absorption structure is provided with at least one energy absorption cavity.

[0014] According to some embodiments of the present application, the energy absorption structure is provided with a plurality of energy absorption cavities, and the plurality of energy absorption cavities are arranged in the width direction of the vehicle body.

[0015] According to some embodiments of the present application, the plurality of energy absorption cavities are arranged in the length direction of the vehicle body.

[0016] According to some embodiments of the present application, the energy absorption structure is configured as a honeycomb structure, and the energy absorption cavities extend in the height direction of the vehicle body.

[0017] According to some embodiments of the present application, the energy absorption cavities are a plurality of cylindrical cavities surrounded by curved panels, and each curved panel comprises a plurality of arc-shaped panels, and the bending directions of adjacent two arc-shaped panels are opposite.

[0018] According to some embodiments of the present application, the energy absorption structure is configured as a multi-cell filling structure, and the energy absorption structure comprises an outer shell and a pipe body arranged inside the outer shell.

[0019] According to some embodiments of the present application, the pipe body comprises a first pipe body and a second pipe body, a plurality of first pipe bodies are arranged on a first circumference inside the outer shell, and a plurality of second pipe bodies are arranged on a second circumference inside the outer shell, and the second circumference is located on the radial inner side of the first circumference.

[0020] According to some embodiments of the present application, the plurality of first pipe bodies are connected by a first arc-shaped rib plate, and the first pipe bodies are connected to the outer shell by a first connecting rib plate.

[0021] The plurality of second pipe bodies are connected by a second arc-shaped rib plate, and the second pipe bodies are connected to the first arc-shaped rib plate by a second connecting rib plate.

[0022] According to some embodiments of the present application, the first pipe body, the first arc-shaped rib plate, the first connecting rib plate, the second pipe body, the second arc-shaped rib plate, and the second connecting rib plate divide the inner part of the outer shell into a plurality of energy absorption cavities.

[0023] According to some embodiments of the present application, the energy-absorbing structure further comprises a filling structure, which is filled in at least one of the energy-absorbing cavities in the shell.

[0024] According to some embodiments of the present application, the second reinforcement between the rocker beam and the mounting longitudinal beam is a plurality of second reinforcements, which are located between two first reinforcements.

[0025] According to some embodiments of the present application, the vehicle body structure further comprises a first cross beam, which extends along the vehicle body width direction and is connected to the rocker beam.

[0026] According to some embodiments of the present application, the vehicle body structure further comprises a third lap joint, by which the first cross beam is connected to the mounting longitudinal beam.

[0027] According to some embodiments of the present application, the third lap joint comprises a third lap joint body, which is adapted to be connected to the mounting longitudinal beam by fasteners.

[0028] According to some embodiments of the present application, the third lap joint further comprises a third lap joint first flange, which is connected to both sides of the third lap joint body in the vehicle body width direction and is welded and fixed to the mounting longitudinal beam.

[0029] According to some embodiments of the present application, the third lap joint further comprises a third lap joint second flange, which is connected to one side of the third lap joint body in the vehicle body length direction and is welded and fixed to the first cross beam.

[0030] According to some embodiments of the present application, the vehicle body structure further comprises a second cross beam, which extends along the vehicle body width direction and is connected to the mounting longitudinal beam by a fourth lap joint.

[0031] According to some embodiments of the present application, the fourth lap joint is detachably connected to the mounting longitudinal beam.

[0032] According to some embodiments of the present application, the vehicle body structure further comprises a rocker reinforcement plate, which extends along the vehicle body length direction and is detachably connected to the rocker beam.

[0033] According to some embodiments of the present application, the rocker beam has a rocker cavity, and the rocker reinforcement plate is arranged in the rocker cavity.

[0034] According to some embodiments of the present application, the rocker reinforcement plate is configured as a hollow tubular structure.

[0035] According to some embodiments of the present application, the number of the mounting longitudinal beams is two, the two mounting longitudinal beams are arranged in a spaced manner, and a mounting space is formed between the two mounting longitudinal beams. The side of the mounting longitudinal beam away from the mounting space is provided with the rocker beam.

[0036] According to another aspect of the embodiments of the present application, a vehicle comprises the vehicle body structure described above.

[0037] According to the vehicle body structure of the embodiments of the present application, the first reinforcing member is arranged between the rocker beam and the mounting longitudinal beam, thereby increasing the force transmission path between the rocker beam and the mounting longitudinal beam. In the side column impact working condition, the force can be transmitted between the rocker beam and the mounting longitudinal beam through the first reinforcing member, which is beneficial to reducing the impact energy received by the rocker beam and the mounting longitudinal beam, thereby reducing the intrusion amount of the rocker beam and the mounting longitudinal beam to the mounting space on the inner side of the mounting longitudinal beam.

[0038] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a top view of a vehicle body structure according to an embodiment of the present application;

[0040] Figure 2 is a schematic view of a first reinforcing member according to an embodiment of the present application;

[0041] Figure 3 is an assembly schematic view of a second reinforcing member according to an embodiment of the present application;

[0042] Figure 4 is Figure 3 is an exploded schematic view of the second reinforcing member shown in FIG. 8;

[0043] Figure 5 is Figure 3 is a three-dimensional schematic view of a part of the energy absorption structure of the second reinforcing member shown in FIG. 8;

[0044] Figure 6 is Figure 5 is a schematic view of an energy absorption cavity of the energy absorption structure shown in FIG. 8;

[0045] Figure 7 is a schematic view of an energy absorption structure according to another embodiment of the present application;

[0046] Figure 8 is Figure 7 is a three-dimensional perspective view of the energy absorption structure shown in FIG. 10;

[0047] Figure 9 is a three-dimensional schematic view of a third lap joint member according to an embodiment of the present application;

[0048] Figure 10 is a schematic view of a fourth clamping member according to an embodiment of the present application;

[0049] Figure 11 is a schematic view of an assembly of a rocker beam and a rocker reinforcement according to an embodiment of the present application;

[0050] Figure 12 is a schematic view of a rocker reinforcement according to an embodiment of the present application;

[0051] Figure 13 is a schematic view of a vehicle according to an embodiment of the present application.

[0052] Reference Signs:

[0053] Vehicle 1000, vehicle body structure 10, rocker beam 1, rocker cavity 11, mounting longitudinal beam 2, mounting space V1, first reinforcement 3, first clamping body 31, first clamping first flange 32, first clamping second flange 33, first bolt 34, second bolt 35, clamping energy-absorbing assembly 4, second reinforcement 41, reinforcement body 411, reinforcement first flange 412, reinforcement second flange 413, energy-absorbing structure 42, energy-absorbing cavity 420, curved panel 421, arc-shaped panel 4211, shell 422, first tube 423, second tube 424, first arc-shaped rib panel 425, first connecting rib panel 426, second arc-shaped rib panel 427, second connecting rib panel 428, filling structure 429, third clamping member 5, third clamping body 51, third clamping first flange 52, third clamping second flange 53, third bolt 54, fourth clamping member 6, fourth clamping body 61, fourth clamping flange 62, fifth bolt 63, rocker reinforcement 7, reinforcement body 71, reinforcement mounting hole 72, fourth bolt 73, first cross beam 8, second cross beam 9. DETAILED DESCRIPTION

[0054] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as limiting the present application.

[0055] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0056] The following will be described in conjunction withFigures 1-13 The detailed description describes the vehicle body structure 10 according to embodiments of the present application.

[0057] Referring to Figure 1 According to the vehicle body structure 10 of the present application, as shown in FIG. 1, the vehicle body structure 10 includes a rocker beam 1, a first reinforcing member 3, and a mounting side sill 2, the mounting side sill 2 and the rocker beam 1 are arranged in a spaced apart manner along the vehicle body width direction, and the mounting side sill 2 is connected to the rocker beam 1 through the first reinforcing member 3. In other words, one end of the first reinforcing member 3 is connected to the rocker beam 1, and the other end of the first reinforcing member 3 is connected to the mounting side sill 2.

[0058] In some embodiments, the number of mounting side sills 2 is two, the two mounting side sills 2 are arranged in a spaced apart manner, the two mounting side sills 2 are spaced apart along the vehicle body width direction, and a mounting space V1 is formed between the two mounting side sills 2, and the mounting side sills 2 extend along the vehicle body length direction. The rocker beam 1 is arranged on the side of the mounting side sill 2 away from the mounting space V1, and the rocker beam 1 extends along the vehicle body length direction. The rocker beam 1 is connected to the mounting side sill 2 on the same side through the first reinforcing member 3.

[0059] In some embodiments of the present application, referring to Figure 1 As shown in FIG. 1, the first reinforcing member 3 extends along the vehicle body width direction.

[0060] It can be understood that in the present application, the part mentioned as "extending along the vehicle body length direction" can mean that the length direction of the part is strictly parallel to the vehicle body length direction, or can mean that the length direction of the part has a small included angle with the vehicle body length direction, and the included angle is not greater than 30°, for example, the included angle can be 5°, 10°, 15°, etc.

[0061] Similarly, in the present application, the part mentioned as "extending along the vehicle body width direction" can mean that the length direction of the part is strictly parallel to the vehicle body width direction, or can mean that the length direction of the part has a small included angle with the vehicle body width direction, and the included angle is not greater than 30°, for example, the included angle can be 5°, 10°, 15°, etc.

[0062] The mounting space V1 can be used to mount some devices required by the vehicle 100, such as a battery pack, a controller, etc., and these devices can be mounted on the mounting side sill 2. For the convenience of description, the device is taken as the battery pack to illustrate the vehicle body structure 10 of the present application.

[0063] Specifically, the battery pack is located between the two mounting longitudinal beams 2, and the battery pack can be mounted on the mounting longitudinal beams 2 by bolt fasteners. In addition to being able to provide a mounting position for the battery pack, the mounting longitudinal beams 2 can also protect the side of the battery pack. When the vehicle 100 is subjected to a side impact, the side impact force can be transmitted to the mounting longitudinal beams 2 through the rocker beam 1 and the first reinforcing member 3. Compared with the scheme in which the rocker beam 1 and the mounting longitudinal beams 2 are not provided with a lap joint member, the first reinforcing member 3 is arranged to connect the rocker beam 1 and the mounting longitudinal beams 2, thereby enriching the force transmission path between the rocker beam 1 and the mounting longitudinal beams 2.

[0064] According to the vehicle body structure 10 of the embodiments of the present application, the first reinforcing member 3 is arranged between the rocker beam 1 and the mounting longitudinal beams 2, thereby increasing the force transmission path between the rocker beam 1 and the mounting longitudinal beams 2. In the side column impact condition of the vehicle 100, the force can be transmitted between the rocker beam 1 and the mounting longitudinal beams 2 through the first reinforcing member 3, which is beneficial to reducing the impact energy received by the rocker beam 1 and the mounting longitudinal beams 2, thereby reducing the intrusion amount of the rocker beam 1 and the mounting longitudinal beams 2 to the mounting space V1.

[0065] In some embodiments of the present application, referring to Figure 1 As shown in the figure, the number of the first reinforcing members 3 between the rocker beam 1 and the mounting longitudinal beams 2 is multiple. In this way, the force transmission path between the rocker beam 1 and the mounting longitudinal beams 2 can be further increased. In the side column impact condition of the vehicle 100, the force can be transmitted between the rocker beam 1 and the mounting longitudinal beams 2 through the multiple first reinforcing members 3, which is beneficial to further reducing the impact energy received by the rocker beam 1 and the mounting longitudinal beams 2, thereby further reducing the intrusion amount of the rocker beam 1 and the mounting longitudinal beams 2 to the mounting space V1.

[0066] In the example of Figure 1 As shown in the figure, the number of the first reinforcing members 3 between the rocker beam 1 and the mounting longitudinal beams 2 is multiple. In this way, the force transmission path between the rocker beam 1 and the mounting longitudinal beams 2 can be further increased. In the side column impact condition of the vehicle 100, the force can be transmitted between the rocker beam 1 and the mounting longitudinal beams 2 through the multiple first reinforcing members 3, which is beneficial to further reducing the impact energy received by the rocker beam 1 and the mounting longitudinal beams 2, thereby further reducing the intrusion amount of the rocker beam 1 and the mounting longitudinal beams 2 to the mounting space V1.

[0067] In some embodiments of the present application, the first reinforcing member 3 is detachably connected with the rocker beam 1 and detachably connected with the mounting longitudinal beams 2. That is, the first reinforcing member 3 is a detachable part. By arranging the first reinforcing member 3 as a detachable part, the first reinforcing member 3 is easy to replace. If a certain first reinforcing member 3 is damaged, only the damaged first reinforcing member 3 needs to be replaced, without disassembling the entire vehicle 100, thereby reducing the maintenance time and cost, and quickly restoring the function of the vehicle 100. For customized vehicles or modified vehicles, the detachability provides greater possibilities for users to customize personalized configurations according to needs. In addition, when the vehicle 100 is scrapped or upgraded, the detachable parts can be recycled separately, improving resource utilization and meeting environmental protection concepts. Furthermore, during transportation, the detached components can reduce the transportation volume and transportation cost.

[0068] In some embodiments, the first reinforcement 3 is as shown in Figure 2 In some embodiments, the first reinforcement 3 includes a first lap body 31, a first lap first flange 32, and a first lap second flange 33, in combination Figure 1 and Figure 2 The first lap body 31 is located between the mounting longitudinal beam 2 and the rocker beam 1, the first lap first flange 32 is connected to the first lap body 31, the first lap second flange 33 is connected to the first lap body 31, the first lap first flange 32 is detachably connected to the mounting longitudinal beam 2 through a first bolt 34, and the first lap second flange 33 is detachably connected to the rocker beam 1 through a second bolt 35.

[0069] In some embodiments of the present application, referring to Figure 1 , Figures 3-8 The rocker beam 1 and the mounting longitudinal beam 2 are provided with an energy absorption structure 42. In a side column impact condition, the energy absorption structure 42 can deform in the left-right direction of the vehicle body to absorb impact energy.

[0070] In some embodiments of the present application, referring to Figure 1 , Figures 3-8 The vehicle body structure 10 further includes a second reinforcement 41 connecting the rocker beam 1 and the mounting longitudinal beam 2, and the energy absorption structure 42 is arranged on the second reinforcement 41. The energy absorption structure 42 and the second reinforcement 41 form a lap energy absorption assembly 4.

[0071] In some embodiments of the present application, referring to Figure 1 , Figures 3-8 The energy absorption structure 42 includes at least one energy absorption cavity 420. In a side column impact condition, the energy absorption cavity 420 can deform in the left-right direction of the vehicle body to absorb impact energy. When the side impact force is transmitted to the energy absorption structure 42, the energy absorption cavity 420 in the left-right direction of the vehicle body forms a transverse support, effectively supporting the rocker beam 1, preventing the front floor of the vehicle body from deforming to cause excessive intrusion of the passenger compartment to harm the passengers, and realizing the ability of the rocker beam 1 to deform and absorb energy and resist impact.

[0072] In some embodiments of the present application, the second reinforcement 41 is fixedly welded to the rocker beam 1, and the second reinforcement 41 is fixedly welded to the mounting longitudinal beam 2. The second reinforcement 41 and the rocker beam 1 can be multi-layer spot welded, for example, the second reinforcement 41 and the rocker beam 1 can be connected by four three-layer spot welds. The second reinforcement 41 and the mounting longitudinal beam 2 can be multi-layer spot welded, for example, the second reinforcement 41 and the mounting longitudinal beam 2 can be connected by double-layer spot welds.

[0073] In some embodiments of the present application, the vehicle body structure 10 can further include a floor, and the second reinforcement 41 is welded and fixed between the second reinforcement 41 and the floor. The second reinforcement 41 and the floor can be connected by double-layer spot welding.

[0074] Referring to Figure 4 As shown in the figure, the second reinforcement 41 includes a reinforcement body 411, a reinforcement first flange 412, a reinforcement second flange 413, and a reinforcement third flange, the reinforcement first flange 412, the reinforcement second flange 413, and the reinforcement third flange are connected to the reinforcement body 411, the reinforcement first flange 412 is welded and fixed to the rocker beam 1, the reinforcement second flange 413 is welded and fixed to the floor, and the reinforcement third flange is welded and fixed to the mounting longitudinal beam 2.

[0075] In some embodiments of the present application, the energy absorption cavity 420 is multiple, and the multiple energy absorption cavities 420 are arranged in the vehicle body width direction. Thus, a multi-level array is formed in the vehicle body width direction, and multiple cavities are formed in the energy absorption structure 42 along the left-right direction of the vehicle 100. In a side column impact condition, each cavity deforms once to absorb energy, and multiple levels of energy absorption deformation can be performed along the left-right direction of the vehicle body to absorb more collision energy. When the collision force is transmitted to the energy absorption structure 42, the multiple cavities along the left-right direction of the vehicle body form a transverse support to effectively support the rocker beam 1, prevent the front floor of the vehicle body from deforming to cause excessive intrusion of the passenger compartment to harm the passengers, and realize the ability of the rocker beam 1 to deform and absorb energy and resist impact.

[0076] In some embodiments of the present application, the multiple energy absorption cavities 420 are arranged in the vehicle body length direction. Thus, a multi-level array is formed in the vehicle body length direction, and multiple cavities are formed in the energy absorption structure 42 along the front-rear direction of the vehicle 100. In a frontal impact condition, each cavity deforms once to absorb energy, and multiple levels of energy absorption deformation can be performed along the front-rear direction of the vehicle body to absorb more collision energy. When the collision force is transmitted to the energy absorption structure 42, the multiple cavities along the front-rear direction of the vehicle body form a longitudinal support.

[0077] In some embodiments of the present application, referring to Figures 3-5 As shown in the figure, the energy absorption structure 42 is configured as a honeycomb structure, and the energy absorption cavities 420 extend along the vehicle body height direction. The second reinforcement 41 is provided with a multi-level honeycomb energy absorption structure, which has good buffering performance and energy absorption characteristics. The combination of the second reinforcement 41 and the multi-level honeycomb energy absorption structure can sufficiently increase the unit energy absorption ratio of the overlap energy absorption assembly 4 without changing the deformation mode of the overlap energy absorption assembly 4.

[0078] In some embodiments of the present application, the energy absorption cavity 420 is a cylindrical cavity surrounded by a plurality of curved panels 421, each curved panel 421 comprising a plurality of arc-shaped panels 4211, and the bending directions of adjacent two arc-shaped panels 4211 are opposite. Figures 5-6 In the example shown, each energy absorption cavity 420 is a cylindrical cavity surrounded by three curved panels 421, each curved panel 421 comprising two arc-shaped panels 4211, and the bending directions of adjacent two arc-shaped panels 4211 are opposite.

[0079] Referring to Figure 6 As shown, the design parameters of the honeycomb structure include the radius R of the circular arc, the angle a of the circular arc, and the wall thickness t and length L of the overall honeycomb structure. The structural stiffness can be dynamically adjusted by the combination of different design parameters, so that the X-direction and Y-direction stiffness characteristics can be adjusted. This facilitates parameterized design according to different vehicle structures, and achieves a higher degree of adaptation between the overlap part between the rocker beam 1 and the mounting longitudinal beam 2, and fully absorbs the energy from the side column impact of the vehicle 100.

[0080] The stiffness characteristics of the multi-stage energy absorption cavity 420 in the plane can be designed respectively to adapt to the remaining energy absorption components, and the deformation mode of layer-by-layer crushing can also be designed to achieve a better energy absorption effect than the traditional hexagonal honeycomb structure.

[0081] Referring to Figures 3-5 As shown, the energy absorption structure 42 of the honeycomb structure is a multi-stage aluminum honeycomb energy absorption structure 42. Compared with the traditional polygonal solid array buffer filling structure, the multi-stage aluminum honeycomb energy absorption structure 42 has good strength and stiffness, stable corrosion resistance, and very light weight, so that the lightweight design of the vehicle body structure 10 of the present application is improved. By combining the designed energy absorption structure 42 with the second reinforcing member 41 to form an overlapping energy absorption assembly 4, the function of combined energy absorption is realized.

[0082] The processing and preparation method of the multi-stage aluminum honeycomb energy absorption structure 42 is similar to that of the traditional honeycomb aluminum structure, which is mainly made of aluminum alloy. The inside is a regular triangular arc unit, and the whole is similar to a honeycomb structure. The processing and preparation of the multi-stage aluminum honeycomb structure usually includes the following steps:

[0083] (1) Selection of aluminum material: high-quality aluminum alloy such as 6000 series or 7000 series aluminum alloy is selected. These materials have good forming performance and corrosion resistance.

[0084] (2) Design and mold: design the mold of the multi-stage honeycomb core structure, which needs to be manufactured according to specific size and density.

[0085] (3) Stamping or casting: The aluminum plate is pressed into a pre-set hexagonal or quadrilateral cavity by a mold at high temperature through the stamping process. Alternatively, it can be formed in one step by aluminum casting technology, and then the excess part is removed. After stamping, the excess part that has not formed a honeycomb needs to be cut off from the aluminum plate to form a separate honeycomb unit.

[0086] (4) Assembly and processing: These units are assembled together by welding, riveting, or gluing to form an integral honeycomb structure. If it is a multi-layer structure, layering may be required. After assembly, surface treatments such as grinding, painting, or anodizing may be performed to improve corrosion resistance and aesthetics. Ensure that the precision, strength, and connection firmness of each honeycomb cell meet the requirements.

[0087] Furthermore, custom cutting and trimming can be performed according to the structural and dimensional requirements of the final vehicle's 100 parts.

[0088] In some embodiments of this application, reference is made to Figures 7-8 As shown, the energy-absorbing structure 42 is constructed as a multi-cell filled structure. The energy-absorbing structure 42 includes an outer shell 422 and a tube, with the tube disposed inside the outer shell 422.

[0089] In some embodiments of this application, reference is made to Figures 7-8 As shown, the tube body includes a first tube body 423 and a second tube body 424. A plurality of first tube bodies 423 are arranged on a first circumference inside the outer shell 422; a plurality of second tube bodies 424 are arranged on a second circumference inside the outer shell 422, and the second circumference is located radially inside the first circumference.

[0090] In some embodiments of this application, reference is made to Figures 7-8 As shown, multiple first tubes 423 are connected by a first arc-shaped rib 425, and the first tubes 423 are connected to the outer shell 422 by a first connecting rib 426; multiple second tubes 424 are connected by a second arc-shaped rib 427, and the second tubes 424 are connected to the first arc-shaped rib 425 by a second connecting rib 428.

[0091] In other words, the outermost layer of the multi-cell filling structure is the thin-walled shell 422, and from outside to inside, it is the first layer of the first tube body 423 and the second layer of the second tube body 424, wherein the outermost shell 422 is connected with the first tube body 423 through the first connecting rib plate 426, and the connecting position is located at the middle part of the outermost shell of the first tube body 423 and the middle part of the cross-sectional side length of the quadrilateral shell 422 structure. The first arc-shaped rib plate 425 is used to connect the adjacent first tube bodies 423, and the connecting position is located at the middle part of the shell opposite to the two adjacent first tube bodies 423. The second arc-shaped rib plate 427 is used to connect the adjacent second tube bodies 424, and the connecting position is located at the middle part of the shell opposite to the two adjacent second tube bodies 424. The second connecting rib plate 428 is used to connect the second tube body 424 and the first arc-shaped rib plate 425, and the connecting position is located at the middle part of the outermost shell of the second tube body 424 and the middle part of the first arc-shaped rib plate 425. The cross-sectional form is shown in Figure 7 .

[0092] By introducing the first tube body 423, the first arc-shaped rib plate 425, the first connecting rib plate 426, the second tube body 424, the second arc-shaped rib plate 427, and the second connecting rib plate 428, the multi-cell structure is further realized, the cross-sectional length of the structure is increased, and the energy absorption is significantly enhanced. The first connecting rib plate 426 is connected to the middle point of the cross-sectional side length of the quadrilateral shell 422, and the second connecting rib plate 428 is connected to the middle point of the cross-sectional side length of the first arc-shaped rib plate 425. In the crushing process, the folding wavelength of the structure becomes smaller, the folding frequency increases, the wavelength is relatively stable, the deformation mode is hierarchical yielding, and the energy absorption effect is enhanced.

[0093] In some embodiments of the present application, referring to FIG. 4, the first tube body 423, the first arc-shaped rib plate 425, the first connecting rib plate 426, the second tube body 424, the second arc-shaped rib plate 427, and the second connecting rib plate 428 divide the shell 422 into a plurality of energy absorption cavities 420. Figures 7-8

[0094] In some embodiments of the present application, referring to FIG. 4, the first tube body 423, the first arc-shaped rib plate 425, the first connecting rib plate 426, the second tube body 424, the second arc-shaped rib plate 427, and the second connecting rib plate 428 divide the shell 422 into a plurality of energy absorption cavities 420. Figures 7-8

[0095] In some embodiments of the present application, the filling structure 429 can be a structure formed of foamed aluminum material.

[0096] ​​In some embodiments of the present application, the filling structure 429 can be a structure formed by a mixed filling material of aluminum foam and polyurethane, which combines the advantages of polyurethane and aluminum foam materials, further improves the problem of limited energy absorption of aluminum foam on the basis of meeting lightweight, and further improves the problem of limited energy absorption of aluminum foam. The aluminum foam-polyurethane filler is filled in the energy absorption cavity 420, mainly drilling the aluminum foam material with a drilling machine, then mixing and stirring the two components A and B in the polyurethane according to a certain proportion, pouring into the pre-made hollow hole of the aluminum foam after heating, and minimizing the shaking to ensure that the pouring glue completely covers the surface of the component to avoid air bubbles. And the density of the aluminum foam increases from top to bottom.

[0097] The aluminum foam-polyurethane mixed foam filling method combines the advantages of polyurethane and aluminum foam materials, further improves the problem of limited energy absorption of aluminum foam on the basis of meeting lightweight, and further improves the problem of limited energy absorption of aluminum foam. At the same time, the density of the filling foam increases from top to bottom in a gradient manner, further improving the crashworthiness and stability of the structure.

[0098] In some embodiments of the present application, referring to Figure 1 As shown in the figure, the second reinforcing member 41 between the rocker beam 1 and the mounting longitudinal beam 2 is multiple, and the multiple second reinforcing members 41 are located between the two first reinforcing members 3.

[0099] In the example of Figure 1 , the number of second reinforcing members 41 between the rocker beam 1 and the mounting longitudinal beam 2 is two. In some embodiments not shown in the figure, the number of second reinforcing members 41 between the rocker beam 1 and the mounting longitudinal beam 2 can also be three, four or more.

[0100] Optionally, between the rocker beam 1 and the mounting longitudinal beam 2, the two second reinforcing members 41 are located between the two first reinforcing members 3.

[0101] In some embodiments of the present application, referring to Figure 1 As shown in the figure, the vehicle body structure 10 further includes a first cross beam 8, the first cross beam 8 extends along the vehicle body width direction, and the first cross beam 8 is connected with the rocker beam 1. Optionally, the first cross beam 8 and the rocker beam 1 can be connected by welding, which is relatively simple, and the first cross beam 8 and the rocker beam 1 cannot be disassembled. Or optionally, the first cross beam 8 and the rocker beam 1 can be detachably connected by bolts.

[0102] When the rocker beam 1 is two, the first cross beam 8 is connected with the rocker beam 1 located on both sides of the mounting space V1.

[0103] In some embodiments of the present application, the battery pack in the mounting space V1 can also be mounted on the first cross beam 8 by a bolt fastener.

[0104] In some embodiments of the present application, referring toFigure 1 , Figure 9 As shown, the vehicle body structure 10 also includes a third connecting member 5, through which the first crossbeam 8 is connected to the mounting longitudinal beam 2. When there are two mounting longitudinal beams 2, the first crossbeam 8 is connected to the mounting longitudinal beams 2 located on both sides of the mounting space V1 through the third connecting member 5.

[0105] In some embodiments of this application, reference is made to Figure 1 , Figure 9 As shown, the third lap joint 5 may include: a third lap joint body 51, a third lap joint first flange 52, and a third lap joint second flange 53. The third lap joint body 51 is adapted to be connected to the mounting longitudinal beam 2 by fasteners, which may be third bolts 54. The third lap joint body 51 is adapted to be connected to the mounting longitudinal beam 2 by third bolts 54, thereby improving the torsional stiffness at this location.

[0106] In some embodiments of this application, reference is made to Figure 1 , Figure 9 As shown, the third lap joint 5 may include: a third lap joint first flange 52, and the third lap joint body 51 is connected to the third lap joint first flange 52 on both sides in the width direction of the vehicle body. The third lap joint first flange 52 is welded and fixed to the mounting longitudinal beam 2.

[0107] In some embodiments of this application, reference is made to Figure 1 , Figure 9 As shown, the third overlapping member 5 may include: a third overlapping second flange 53, which is connected to one side of the third overlapping body 51 along the length of the vehicle body, and is welded to the first crossbeam 8. For example, the third overlapping first flange 52 and the mounting longitudinal beam 2 can be connected by spot welding, which can be double-layer spot welding, triple-layer spot welding, etc. The third overlapping second flange 53 and the first crossbeam 8 can be connected by spot welding, which can be double-layer spot welding, triple-layer spot welding, etc. The third overlapping member 5 is a non-removable part.

[0108] The addition of the third lap joint 5 effectively enhances the connection between the mounting longitudinal beam 2 and the first transverse beam 8, improves the stability of the single-sided structure, and increases the torsional stiffness of the vehicle body structure 10. This helps reduce the twisting and deformation of the vehicle 100 during cornering or driving on uneven roads. It can also effectively reduce the degree of vehicle body deformation during side pole impacts and reduce the intrusion of the sill beam 1 during side pole impacts.

[0109] In some embodiments of this application, reference is made to Figure 1 , Figure 10As shown, the vehicle body structure 10 further comprises a second cross beam 9 extending along the vehicle body width direction, and the vehicle body structure 10 further comprises a fourth lap joint 6, and the second cross beam 9 is connected to the mounting longitudinal beam 2 through the fourth lap joint 6. For example, the second cross beam 9 is connected to the mounting longitudinal beams 2 located on both sides of the mounting space V1 through the fourth lap joint 6.

[0110] In some embodiments of the present application, the fourth lap joint 6 is detachably connected to the mounting longitudinal beam 2. For example, the fourth lap joint 6 is connected to the mounting longitudinal beam 2 through the fifth bolt 63, thereby facilitating the improvement of the torsional rigidity at this position.

[0111] Optionally, the number of the fifth bolt 63 can be one or more.

[0112] In some embodiments of the present application, referring to Figure 1 , Figure 10 As shown, the fourth lap joint 6 comprises a fourth lap joint body 61 and a fourth lap joint flange 62 connected to the fourth lap joint body 61, the fourth lap joint flange 62 can be welded and fixed to the floor, and the fourth lap joint body 61 can be connected to the mounting longitudinal beam 2 through the fifth bolt 63.

[0113] Due to the addition of the fourth lap joint 6, the connection between the mounting longitudinal beam 2 and the second cross beam 9 can be effectively enhanced, and the stability of the structure can be improved, and the deformation degree of the vehicle body during the side pole impact process can be effectively reduced, and the intrusion amount of the rocker beam 1 during the side pole impact can be reduced.

[0114] In some embodiments of the present application, referring to Figure 1 As shown, the second cross beam 9 is located on the side of the first cross beam 8 facing the rear of the vehicle.

[0115] In some embodiments of the present application, referring to Figure 1 , Figures 11-12 As shown, the vehicle body structure 10 further comprises a rocker reinforcement 7 extending along the vehicle body length direction, and the rocker reinforcement 7 is detachably connected to the rocker beam 1. The rocker reinforcement 7 and the rocker beam 1 can be connected by the fourth bolt 73.

[0116] In some embodiments of the present application, referring to Figure 1 , Figures 11-12 As shown, the rocker beam 1 has a rocker cavity 11, and the rocker reinforcement 7 is arranged in the rocker cavity 11. By additionally arranging the rocker reinforcement 7 in the rocker cavity 11, the energy absorption characteristics, strength and rigidity of the rocker beam 1 can be effectively improved, and the deformation of the passenger compartment can be further reduced during the side pole impact of the vehicle 100, and the stability of the passenger compartment can be ensured as much as possible.

[0117] In some embodiments of the present application, referring to Figures 11-12As shown, the threshold reinforcement plate 7 is configured as a hollow tubular structure, which can reduce the weight of the threshold reinforcement plate 7, while the strength and rigidity of the threshold reinforcement plate 7 are good.

[0118] The threshold reinforcement plate 7 includes a reinforcement plate body 71, and a plurality of reinforcement plate mounting holes 72 are arranged on the reinforcement plate body 71. The fourth bolt 73 is fastened to the threshold beam 1 after penetrating through the reinforcement plate mounting hole 72.

[0119] Optionally, the number of reinforcement plate mounting holes 72 can be one or more. The fourth bolt 73 is fastened to the threshold beam 1 after penetrating through the corresponding reinforcement plate mounting hole 72.

[0120] The threshold cavity 11 serves as a bending-resistant cavity and is connected to the threshold reinforcement plate 7. In cooperation with the first reinforcement 3, the second reinforcement 41, the energy-absorbing structure 42, the third lap joint 5, and the fourth lap joint 6, the threshold beam 1 can effectively increase the overall rigidity in the Z direction and the Y direction, effectively resist the huge impact energy in the Z direction and the Y direction under small overlap working conditions, reduce the deformation of the passenger compartment, and reduce the injury to the passengers.

[0121] It can be understood that in the description of the present application, the X direction refers to the length direction, front-rear direction of the vehicle 100, the Y direction refers to the width direction, left-right direction of the vehicle 100, and the Z direction refers to the height direction, up-down direction of the vehicle 100. The strength is a mechanical property parameter representing the resistance of a material to fracture and excessive deformation. Common strength performance indicators include tensile strength and yield strength (or yield point). The stiffness generally refers to static stiffness, which refers to the ability of a material or structure to resist elastic deformation under static load, and is a representation of the difficulty of elastic deformation of a material or structure.

[0122] In the example of the present application, Figure 1 The threshold beam 1 and the mounting longitudinal beam 2 are designed with four detachable first reinforcements 3 connected by bolts. The number of first reinforcements 3 between each side threshold beam 1 and the same side mounting longitudinal beam 2 is two. When dealing with side column impact working conditions, the vehicle body structure 10 can effectively transmit the impact energy through the battery pack itself frame, the first cross beam 8, and the second cross beam 9 to the non-impact side mounting longitudinal beam 2, the first reinforcement 3, and the threshold beam 1, realizing force transmission through multiple force transmission paths. The performance of the vehicle body structure 10 can be fully utilized, and the Y direction intrusion of the vehicle body and the battery pack can be effectively reduced, protecting the battery pack structure and the passenger compartment integrity.

[0123] The third lap joint 5 is bolted to the mounting longitudinal beam 2, the fourth lap joint 6 is bolted to the mounting longitudinal beam 2, and the four bolted detachable first reinforcing members 3 arranged between the rocker beam 1 and the mounting longitudinal beam 2 are combined, so that the torsional stiffness of the vehicle body structure 10 is effectively improved, and in the case of a small overlap frontal collision of the vehicle body, the huge collision energy generated on the collision side can be effectively converted into kinetic energy during rotation of the vehicle, thereby reducing the increase of the internal energy of the vehicle front compartment structure, thereby reducing the intrusion of the vehicle front compartment.

[0124] The vehicle body structure 10 of the present application is formed as a vehicle body anti-collision energy-absorbing structure, which can increase the side wall collision energy-absorbing area and increase the collision force transmission path, thereby effectively reducing the side wall collision intrusion amount. At the same time, it protects the battery pack under the floor and is beneficial to avoid high-pressure safety risks, thereby improving the safety of the vehicle 100; secondly, the first reinforcing member 3, the second reinforcing member 41, the energy-absorbing structure 42, the third lap joint 5, the fourth lap joint 6, and the rocker reinforcement plate 7 are beneficial to increase the rigidity and stability of the vehicle body structure 10 and reduce the twisting and deformation of the vehicle 100 during driving on a curved road or uneven road.

[0125] According to another aspect of the embodiment of the vehicle 100 of the present application, the vehicle body structure 10 of the above-mentioned embodiment is included.

[0126] According to the vehicle 100 of the embodiment of the present application, the vehicle body structure 10 increases the force transmission path between the rocker beam 1 and the mounting longitudinal beam 2 by adding the first reinforcing member 3 between the rocker beam 1 and the mounting longitudinal beam 2, so that in the case of a side column collision of the vehicle 100, the force can be transmitted between the rocker beam 1 and the mounting longitudinal beam 2 through the first reinforcing member 3, which is beneficial to reduce the impact energy received by the rocker beam 1 and the mounting longitudinal beam 2, thereby reducing the intrusion amount of the rocker beam 1 and the mounting longitudinal beam 2 to the mounting space V1.

[0127] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0128] In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0129] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like 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 present application. In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0130] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A vehicle body structure (10) characterized by, The utility model relates to a kind of energy-absorbing structures of vehicle door sill and mounting rail, including: Mounting rail (2) and door sill beam (1), the mounting rail (2) and the door sill beam (1) are spaced apart along the vehicle body width direction; First reinforcing member (3), the mounting rail (2) is connected to the door sill beam (1) by the first reinforcing member (3); Energy-absorbing structure (42) is arranged between the door sill beam (1) and the mounting rail (2), and the energy-absorbing structure (42) is provided with a plurality of energy-absorbing cavities (420), and a plurality of the energy-absorbing cavities (420) are arranged in the vehicle body length direction.

2. The vehicle body structure (10) according to claim 1, characterized by, The first reinforcing member (3) extends along the vehicle body width direction.

3. The vehicle body structure (10) according to claim 1, characterized by, The number of the first reinforcing member (3) between the door sill beam (1) and the mounting rail (2) is multiple.

4. The vehicle body structure (10) according to claim 1, characterized by The first reinforcing member (3) is detachably connected between the door sill beam (1) and the mounting rail (2).

5. The vehicle body structure (10) according to claim 1, characterized by, Further comprising a second reinforcing member (41), the second reinforcing member (41) connects the door sill beam (1) and the mounting rail (2), and the energy-absorbing structure (42) is arranged on the second reinforcing member (41).

6. The vehicle body structure (10) according to claim 5, characterized by The second reinforcing member (41) is welded and fixed between the door sill beam (1) and the mounting rail (2).

7. The vehicle body structure (10) according to claim 1, characterized by A plurality of the energy-absorbing cavities (420) are arranged in the vehicle body width direction.

8. The vehicle body structure (10) according to any one of claims 1 to 7, characterized by The energy-absorbing structure (42) is configured as a honeycomb structure, and the energy-absorbing cavities (420) extend along the vehicle body height direction.

9. The vehicle body structure (10) according to claim 8, characterized in that, The energy-absorbing cavities (420) are columnar cavities surrounded by a plurality of curved panels (421), and each of the curved panels (421) comprises a plurality of arc-shaped panels (4211), and the bending directions of adjacent two arc-shaped panels (4211) are opposite.

10. The vehicle body structure (10) according to any one of claims 1 to 7, characterized in that, The energy-absorbing structure (42) is configured as a multi-cell filling structure, and the energy-absorbing structure (42) comprises: An outer shell (422) and a pipe body arranged inside the outer shell (422).

11. The vehicle body structure (10) according to claim 10, characterized in that, The pipe body comprises: A plurality of first pipe bodies (423) arranged on a first circumference inside the outer shell (422); A plurality of second pipe bodies (424) arranged on a second circumference inside the outer shell (422), and the second circumference is located on the radial inner side of the first circumference.

12. The vehicle body structure (10) according to claim 11, characterized by The plurality of first pipe bodies (423) are connected by first arc-shaped rib plates (425), and the first pipe bodies (423) are connected to the outer shell (422) by first connecting rib plates (426); The plurality of second pipe bodies (424) are connected by second arc-shaped rib plates (427), and the second pipe bodies (424) are connected to the first arc-shaped rib plates (425) by second connecting rib plates (428).

13. The vehicle body structure (10) according to claim 12, characterized by The first pipe bodies (423), the first arc-shaped rib plates (425), the first connecting rib plates (426), the second pipe bodies (424), the second arc-shaped rib plates (427) and the second connecting rib plates (428) divide the inside of the outer shell (422) into a plurality of energy-absorbing cavities (420).

14. The vehicle body structure (10) according to claim 13, characterized by The energy absorption structure (42) further comprises a filling structure (429) filled in at least one of the energy absorption cavities (420) in the shell (422).

15. The vehicle body structure (10) according to claim 5 or 6, characterized by The second reinforcing member (41) between the rocker beam (1) and the mounting longitudinal beam (2) is a plurality of second reinforcing members (41) located between two first reinforcing members (3).

16. The vehicle body structure (10) according to claim 1, characterized by, The vehicle body structure (10) further comprises a first cross beam (8) extending along the vehicle body width direction, and the first cross beam (8) is connected with the rocker beam (1).

17. The vehicle body structure (10) according to claim 16, characterized by The vehicle body structure (10) further comprises a third lap joint member (5), and the first cross beam (8) connects the mounting longitudinal beam (2) through the third lap joint member (5).

18. The vehicle body structure (10) according to claim 17, characterized by The third lap joint member (5) comprises: A third lap joint body (51) adapted to be connected with the mounting longitudinal beam (2) through fasteners.

19. The vehicle body structure (10) according to claim 18, characterized by The third lap joint member (5) further comprises a third lap joint first flange (52) connected on both sides of the third lap joint body (51) in the vehicle body width direction, and the third lap joint first flange (52) is welded and fixed with the mounting longitudinal beam (2).

20. The vehicle body structure (10) according to claim 18, characterized by, The third lap joint member (5) further comprises a third lap joint second flange (53) connected on one side of the third lap joint body (51) in the vehicle body length direction, and the third lap joint second flange (53) is welded and fixed with the first cross beam (8).

21. The vehicle body structure (10) according to claim 1, characterized by, The vehicle body structure (10) further comprises a second cross beam (9) extending along the vehicle body width direction, and the vehicle body structure (10) further comprises a fourth lap joint member (6), and the second cross beam (9) connects the mounting longitudinal beam (2) through the fourth lap joint member (6).

22. The vehicle body structure (10) according to claim 21, characterized by The fourth lap joint member (6) is detachably connected with the mounting longitudinal beam (2).

23. The vehicle body structure (10) according to claim 1, characterized by, The vehicle body structure (10) further comprises a rocker reinforcement plate (7) extending along the vehicle body length direction, and the rocker reinforcement plate (7) is detachably connected with the rocker beam (1).

24. The vehicle body structure (10) according to claim 23, characterized by, The rocker beam (1) has a rocker cavity (11), and the rocker reinforcement plate (7) is arranged in the rocker cavity (11).

25. The vehicle body structure (10) according to claim 23, characterized by, The rocker reinforcement plate (7) is configured as a hollow tubular structure.

26. The vehicle body structure (10) according to claim 1, characterized by, The number of the mounting longitudinal beams (2) is two, and the two mounting longitudinal beams (2) are arranged at intervals to form a mounting space (V1) therebetween, and the side of the mounting longitudinal beam (2) away from the mounting space (V1) is provided with the rocker beam (1).

27. A vehicle (100), characterized in that The vehicle body structure (10) comprises any one of claims 1-26.

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