Reinforcing structure, automobile body assembly and automobile

Abstract

The utility model relates to a reinforcing structure, an automobile body assembly and an automobile. The reinforcing structure is used for being connected to a vehicle body, the vehicle body comprises a bottom and a first side part and a second side part which are connected to the bottom, the first side part and the second side part are arranged in a spaced mode in the first direction, and the reinforcing structure comprises a through beam and a reinforcing beam, the first mounting plate is located at the first end, and the first mounting plate is used for being connected to the first side part; a first diagonal bracing plate fixed to the through beam and fixed to the first mounting plate; the second mounting plate is located at the second end, and the second mounting plate is used for being connected to the second side part; a second diagonal bracing plate fixed to the through beam and fixed to the second mounting plate; and the first supporting piece is fixed to the through beam and used for being connected to the bottom. The reinforcing structure is favorable for improving the torsional rigidity of the vehicle body.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle components, and particularly to a reinforcing structure, a body assembly, and an automobile. Background Art

[0002] An automobile body is mainly composed of various complex beam structures and is equipped with various external devices.

[0003] In a new energy vehicle, a battery pack can be connected to the body. The size of the battery pack is relatively small, while the width size of the body is relatively large. Such a structural drop is extremely likely to cause insufficient body stiffness, and the body stiffness may not meet the design requirements under torsional conditions.

[0004] A common way to increase torsional stiffness is to increase the sheet metal thickness. However, such a method has limited effect on improving stiffness, and when used in the vehicle model development process, it requires a large amount of modification to the parts carried over from previous vehicle models. Summary of the Utility Model

[0005] Based on this, it is necessary to provide a reinforcing structure, a body assembly, and an automobile for solving the problem of insufficient torsional stiffness of the body.

[0006] An embodiment of the present disclosure provides a reinforcing structure for connecting to a body. The body includes a bottom and a first side portion and a second side portion connected to the bottom. The first side portion and the second side portion are spaced apart along a first direction. The reinforcing structure includes: a through beam having a first end and a second end facing away from each other along the first direction; a first mounting plate located at the first end for connecting to the first side portion; a first diagonal brace fixed to the through beam and fixed to the first mounting plate; a second mounting plate located at the second end for connecting to the second side portion; a second diagonal brace fixed to the through beam and fixed to the second mounting plate; and a first support member fixed to the through beam for connecting to the bottom.

[0007] By providing the first mounting plate, the second mounting plate, and the first support member, the connection stability between the reinforcing structure and the body can be ensured; by providing the through beam, it is beneficial to improve the torsional stiffness of the body and ensure the performance of the body; by providing the first diagonal brace, the second diagonal brace, and the first support member, it helps to ensure the stiffness of the reinforcing structure and further helps to improve the torsional stiffness of the body.

[0008] The reinforcing structure according to the embodiment of the present disclosure has at least one of the following beneficial effects:

[0009] Under the condition of not having to make large-scale changes to the original body structure design, the torsional stiffness of the body is improved, and thus the body performance affected by the torsional stiffness is improved;

[0010] It has relatively high process feasibility and low cost;

[0011] The contribution of the reinforcement structure to the improvement of the body torsional stiffness is relatively obvious, and the cost performance is relatively high.

[0012] In some embodiments, the first support member includes two legs located on both sides of the through beam along a second direction perpendicular to the first direction.

[0013] With such a setting, the connection posture of the reinforcement structure is stable, and thus the torsional stiffness of the body can be ensured with a stable posture.

[0014] Exemplarily, the legs of the first support member are provided with screw holes, and the first mounting plate and the second mounting plate are respectively provided with other screw holes.

[0015] With such a setting, the assembly and disassembly of the reinforcement structure are relatively convenient; the structure of the reinforcement structure is simple and can be flexibly adapted.

[0016] In some embodiments, the reinforcement structure further includes a third mounting plate and a third diagonal brace plate. The third mounting plate is located at the second end. The third mounting plate and the second mounting plate are respectively located on both sides of the through beam along a second direction perpendicular to the first direction. The third diagonal brace plate is fixed to the through beam and fixed to the third mounting plate.

[0017] With such a setting, the torsional resistance performance of the reinforcement structure is improved.

[0018] In some embodiments, the first mounting plate is located on the first side of the through beam along the second direction; the reinforcement structure further includes a second support member. The second support member is located between the first support member and the first mounting plate along the first direction, and the second support member is located on the second side of the through beam along the second direction.

[0019] With such a setting, the reinforcement structure has good torsional resistance performance, a balanced structure, and stable installation.

[0020] In some embodiments, the through beam includes a first section, a second section, and a third section connected in sequence. Both the third section and the first section are deflected to the same side relative to the second section along a third direction. Exemplarily, the third direction is perpendicular to the first direction and perpendicular to the second direction.

[0021] With such a setting, the reinforcement structure occupies less space in the vehicle body, and at the same time can effectively avoid electrical pipelines and exhaust pipelines, effectively reducing the amount of modification of the space layout; in addition, the first support member is easier to connect to the vehicle body.

[0022] In some embodiments, the first support member is located in the second section, and the first support member extends from the second section along the third direction to the other side relative to the first section; the first mounting plate is located in the first section, and the second mounting plate is located in the third section.

[0023] With such a setting, the reinforcement structure is stably connected, and the ability to improve the torsional stiffness of the vehicle body can be ensured; the first mounting plate and the second mounting plate are small in size, which is beneficial for weight reduction.

[0024] In some embodiments, the through beam is a circular steel pipe; the first diagonal bracing plate, the second diagonal bracing plate and the first support member are respectively sheet metals welded to the through beam.

[0025] With such a setting, the reinforcement structure has low cost, is easy to manufacture and has high strength.

[0026] Exemplarily, the first diagonal bracing plate and the second diagonal bracing plate are respectively parallel to the through beam.

[0027] In some embodiments, the first diagonal bracing plate and the second diagonal bracing plate respectively include three sides surrounding a right triangle, and the deflection range of the hypotenuse of the three sides relative to the through beam is 30° to 60°; the dimension of the first diagonal bracing plate in the first direction is the same as the dimension of the second diagonal bracing plate in the first direction.

[0028] With such a setting, the first diagonal bracing plate and the second diagonal bracing plate can effectively ensure the anti-torsion of the reinforcement structure; the reinforcement structure has good strength and balanced stress; the parts of the reinforcement structure are similar and easy to manufacture.

[0029] The present disclosure embodiment also provides a vehicle body assembly, which includes: a vehicle body including a bottom and a first side portion and a second side portion connected to the bottom, the first side portion and the second side portion being spaced apart along a first direction; and the aforementioned reinforcement structure.

[0030] The vehicle body assembly of the present disclosure embodiment has high torsional stiffness, does not need to make too much change to the vehicle body; has low manufacturing cost; and has high cost performance.

[0031] The present disclosure embodiment also provides an automobile, which includes the aforementioned vehicle body assembly.

[0032] The automobile of the present disclosure embodiment has good performance under torsional conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the vehicle body assembly of the present disclosure embodiment;

[0034] Figure 2 is a schematic top view of the reinforcement structure of the present disclosure embodiment;

[0035] Figure 3 is a schematic cross-sectional view of the through beam in the present disclosure embodiment;

[0036] Figure 4 is a structural diagram of the reinforcement structure of the present disclosure embodiment;

[0037] Figure 5Schematic structural block diagram of an automobile according to an embodiment of the present disclosure.

[0038] Description of reference numerals: 1, through beam; 110, first section; 120, second section; 130, third section; 101, first end; 102, second end; 2, first mounting plate; 3, first diagonal brace plate; 301, first right-angled side; 302, second right-angled side; 303, hypotenuse; 4, second mounting plate; 5, second diagonal brace plate; 6, first support member; 61, support leg; 611, screw hole; 7, third mounting plate; 8, third diagonal brace plate; 9, second support member;

[0039] 100, reinforcement structure; 200, vehicle body; 210, bottom; 211, cross beam; 212, small longitudinal beam; 220, first side portion; 230, second side portion; 300, vehicle body assembly; 400, battery pack; 500, automobile. Specific embodiments

[0040] In order to make the above objects, features, and advantages of the embodiments of the present disclosure more obvious and understandable, the following will describe in detail the specific embodiments of the embodiments of the present disclosure with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the embodiments of the present disclosure. However, the embodiments of the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the embodiments of the present disclosure. Therefore, the embodiments of the present disclosure are not limited by the specific examples disclosed below.

[0041] In the description of the embodiments of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "perpendicular", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 embodiments of the present disclosure 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 should not be construed as a limitation to the embodiments of the present disclosure.

[0042] In the embodiments of the present disclosure, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Exemplarily, the second mounting plate may also be referred to as the third mounting plate, and the third mounting plate may also be referred to as the second mounting plate. In the description of the embodiments of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0044] In the embodiments of the present disclosure, unless otherwise clearly specified or limited, the terms "connected", "coupled", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a flexible connection, or a rigid connection along at least one direction; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or directly connected while there is an intermediate medium, and may also be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. The terms "mounted", "arranged", "fixed", etc. can be understood in a broad sense as connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0045] As used herein, the terms "layer" and "region" refer to a portion of a material that includes a region having a certain thickness. The layer can extend horizontally, vertically, and / or along a tapered surface. The layer can be a region of a uniform or non-uniform continuous structure, and the thickness perpendicular to the extension direction may not be greater than the thickness of the continuous structure. The layer can include multiple layers, which can be multiple stacked layers or multiple layers extending discretely. The shapes of various regions and layers in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may actually deviate due to manufacturing tolerances or technical limitations, and can be adjusted according to actual requirements.

[0046] Refer to Figure 1 , Figure 1The body assembly according to an embodiment of the present disclosure is shown. In an exemplary embodiment, the body assembly 300 includes a body 200 and a reinforcing structure 100, and the reinforcing structure 100 is used to improve the torsional stiffness of the body 200.

[0047] Exemplarily, the X-axis direction is the vehicle length direction or the front-rear direction, and the Y-axis direction is the vehicle width direction or the left-right direction. The body 200 includes a bottom 210, a first side portion 220, and a second side portion 230. The first side portion 220 and the second side portion 230 can each extend along the X-axis direction, and the two are spaced apart along a first direction, which can be parallel to the Y-axis direction. Subsequently, it is considered that the second direction can be parallel to the X-axis direction. The first side portion 220 and the second side portion 230 can be at the edge positions of the body 200, for example, both are sill beams. The bottom 210 is fixed to the first side portion 220 and fixed to the second side portion 230. The bottom 210 can include many components, such as a beam structure or a sheet metal structure, and the bottom 210 is also used to mount or accommodate external components.

[0048] Reference Figure 1 , Figure 2 and Figure 4 , exemplarily, the reinforcing structure 100 includes a through beam 1, a first mounting plate 2, a first diagonal brace plate 3, a second mounting plate 4, a second diagonal brace plate 5, and a first support member 6. The number of the first support members 6 is at least one.

[0049] The through beam 1 has a first end 101 and a second end 102 facing away from each other along the first direction. Exemplarily, along the X-axis direction, the left side of the illustration of the through beam 1 in Figure 1 is referred to as the first side, and the right side is referred to as the second side; as Figure 2 shown, the lower left side of the illustration of the through beam 1 is referred to as the first side, and the upper right side is referred to as the second side. As Figure 2 shown, along the Z-axis direction, the lower side of the illustration of the through beam 1 can be referred to as the third side, and the upper side of the illustration can be referred to as the fourth side.

[0050] The first mounting plate 2 is located at the first end 101. The first mounting plate 2 can be directly connected to the through beam 1 or indirectly connected to the through beam 1. The first mounting plate 2 is fixed to the first diagonal brace plate 3, and the first diagonal brace plate 3 is fixed to the through beam 1. Reference Figure 2 , the first mounting plate 2 is located on the first side of the through beam 1, and the first diagonal brace plate 3 is also located on the first side of the through beam 1. The first mounting plate 2 can be substantially parallel to the XZ plane or have a certain deviation. The first diagonal brace plate 3 can be substantially parallel to the XY plane or have a certain deflection, and the first diagonal brace plate 3 can be perpendicular to the first mounting plate 2.

[0051] The second mounting plate 4 is located at the second end 102 and can be directly or indirectly connected to the through beam 1. The second diagonal brace plate 5 is fixed to the through beam 1, and the second mounting plate 4 is fixed to the second diagonal brace plate 5. The second mounting plate 4 and the first mounting plate 2 are located on the same side or opposite sides of the through beam along the second direction. Refer to Figure 2 , and exemplarily, the second mounting plate 4 and the second diagonal brace plate 5 are also located on the first side of the through beam 1. The second mounting plate 4 and the first mounting plate 2 can be substantially parallel or deflected according to the mating requirements of external components. The second diagonal brace plate 5 can be perpendicular to the second mounting plate 4.

[0052] In some other examples, the reinforcement structure 100 includes a through beam 1, a first mounting plate 2, and a third mounting plate 7. The third mounting plate 7 can be referred to as the second mounting plate. The first mounting plate 2 is disposed on the first side of the through beam 1, and the third mounting plate 7 is disposed on the second side of the through beam 1. The reinforcement structure 100 can adapt to different installation spaces.

[0053] Combined with Figure 4 and Figure 1 , the first mounting plate 2 is used to connect to the first side portion 220, and the second mounting plate 4 is used to connect to the second side portion 230. The reinforcement structure 100 can be located between the first side portion 220 and the second side portion 230. The through beam 1 serves as the main torque transmission path, which is beneficial to improving the torsional stiffness of the vehicle body 200 and ensuring the performance of the vehicle body 200.

[0054] Exemplarily, the first support member 6 is fixed to the through beam 1, and the first support member 6 is used to connect to the bottom 210. When the through beam 1 plays a role in transmitting torque, the first support member 6 can transmit the torque in the middle of the through beam 1 to the vehicle body 200, which helps to increase the torsional contribution of the reinforcement structure 100. By providing the first mounting plate 2, the second mounting plate 4, and the first support member 6, the connection stability between the reinforcement structure 100 and the vehicle body 200 can be ensured. The contribution of the reinforcement structure 100 to the improvement of the torsional stiffness of the vehicle body 200 is relatively obvious, and the cost performance is relatively high. Without having to extensively modify the original structural design of the vehicle body 200, the torsional stiffness of the vehicle body can be improved, and further the vehicle body performance affected by the torsional stiffness can be improved. The first support member 6 is located between the first diagonal brace plate 3 and the second diagonal brace plate 5. Providing the first diagonal brace plate 3, the second diagonal brace plate 5, and the first support member 6 helps to ensure the stiffness of the reinforcement structure 100, and further helps to improve the torsional stiffness of the vehicle body 200.

[0055] In the embodiments of the present disclosure, setting the reinforcement structure 100 on the vehicle body 200 is an innovative way to reinforce the vehicle body torsion structure loop, and it has extremely high flexibility. The installation position of the reinforcement structure 100 can be adjusted by adjusting the length of the through beam 1 and the position of the mounting holes on the vehicle body 200, so as to achieve the dual objectives of space layout and vehicle body torsion stiffness optimization. The reinforcement structure 100 has extremely high feasibility, effectiveness and flexibility for the dual difficult problems of limited space layout and the vehicle body structure torsion stiffness optimization approaching the limit.

[0056] The through beam 1 can be fixed to each diagonal brace plate, the diagonal brace plate can be fixed to the corresponding mounting plate, and the through beam 1 can be fixed to the support member by welding. The reinforcement structure 100 has high process feasibility and low cost.

[0057] Reference Figure 2 , in some embodiments, the first support member 6 includes two feet 61 located on both sides of the through beam 1 along the second direction. The connection attitude of the reinforcement structure 100 is stable, and thus the torsion stiffness of the vehicle body 200 can be ensured in a stable attitude. The two feet 61 can be respectively connected to the through beam 1, or can be connected by an arc-shaped connecting plate. The arc-shaped connecting plate can be attached to the outer peripheral wall of the through beam 1. According to the torque state after the reinforcement structure 100 is installed on the vehicle body 200, the arc-shaped connecting plate can be between the through beam 1 and the bottom 210, or on the side of the through beam 1 facing away from the bottom 210.

[0058] Combined with Figure 4 shown, the two feet 61 can be asymmetric, the distances between them and the through beam 1 can be different, and the dimensions along the first direction can also be different. Exemplarily, the reinforcement structure 100 includes two first support members 6. The two first support members 6 are arranged at intervals along the Y-axis direction, and the dimensions of the two first support members 6 are different from each other. When the number of the first support members 6 is N, the span La between any two first support members 6 satisfies: La≥L / (N + 1), where L is the extended length of the through beam 1, and N is an integer not less than 2.

[0059] In some alternative embodiments, the first mounting plate 2 or the second mounting plate 4 can be connected to the first side portion 220 and the second side portion 230 by welding or other connection means.

[0060] As Figure 2 shown, exemplarily, the foot 61 is provided with a screw hole 611 and can be connected to the vehicle body 200 by screws. The first mounting plate 2 and the second mounting plate 4 can be respectively provided with some other screw holes 611 (not shown). By the way of opening holes in the plate, the structure of the reinforcement structure 100 is simple and can be flexibly adapted; the assembly and disassembly of the reinforcement structure 100 are relatively convenient.

[0061] By setting the reinforcement structure 100 to a detachable form, the reinforcement structure 100 can be defined as a retrofit part in terms of technology. It does not follow the welding of the vehicle body 200 but follows the general assembly of components. When dealing with problems such as extreme cost control or designing the top - grade advanced version of a similar vehicle model, it can be used as an optional part at any time and selectively assembled throughout the entire vehicle model design cycle. The only prerequisite is to leave corresponding installation bolt holes in advance in the assembly area. The reinforcement structure 100 is a structural performance optimization part and has certain corresponding attributes of body torsional stiffness - the optimization effects of attributes such as stable operation.

[0062] In some embodiments, the reinforcement structure 100 further includes a third mounting plate 7 and a third diagonal brace plate 8. The third mounting plate 7 is located at the second end 102. The third mounting plate 7 and the second mounting plate 4 are located on both sides of the through - beam 1. Exemplarily, the third mounting plate 7 is located on the second side of the through - beam 1. The third mounting plate 7 can be directly connected to the through - beam 1 or indirectly connected to the through - beam 1. Exemplarily, the third mounting plate 7 is fixed to the third diagonal brace plate 8, and the third diagonal brace plate 8 is fixed to the through - beam 1, thus improving the torsional resistance performance of the reinforcement structure 100.

[0063] Optionally, the second mounting plate 4 and the third mounting plate 7 are different regions of the same plate. The second mounting plate 4 and the third mounting plate 7 can be parallel, and they can be coplanar or non - coplanar. Optionally, the second mounting plate 4 and the third mounting plate 7 are deflected relative to each other.

[0064] Reference Figure 4 and Figure 1 and, the second diagonal brace plate 5 and the third diagonal brace plate 8 can be symmetrically arranged or asymmetrically arranged. Exemplarily, in the reinforcement structure 100, the support plate can correspond to the central axis of the through - beam 1. For example, the second diagonal brace plate 5 is parallel to the XY plane and aligned with the central axis of the through - beam 1. The torque can be stably transmitted between the through - beam 1 and the mounting plate, and the reinforcement structure 100 has good rigidity. The second diagonal brace plate 5 and the first diagonal brace plate 3 can be coplanar or deflected. In some other embodiments, the support plate has a certain deviation or deflection relative to the central axis of the through - beam 1.

[0065] The first diagonal brace plate 3 can be triangular, trapezoidal or other polygons. Reference Figure 2, in some embodiments, the first brace plate 3 includes three sides surrounding a right triangle, namely the first right-angle side 301, the second right-angle side 302, and the hypotenuse 303. These three sides can form a right triangle or be three sides in a polygon, such as the two waists and the base of a trapezoid. The first right-angle side 301 is connected to the through beam 1, and the second right-angle side 302 is connected to the first mounting plate 2. Exemplarily, the convergence point of the first right-angle side 301 and the second right-angle side 302 can protrude from the first end 101 along the first direction to ensure reliable external connection of the first mounting plate 2. The deflection range of the hypotenuse 303 relative to the through beam 1 is from 30° to 60°, for example, 45°. The first brace plate 3 can support the first mounting plate 2, ensure the strength of the reinforcement structure 100, and effectively ensure the anti-torsion of the reinforcement structure 100.

[0066] Exemplarily, the second brace plate 5 and the third brace plate 8 can each include three sides surrounding a right triangle. The deflection range of the hypotenuse 303 among the three sides relative to the through beam 1 is from 30° to 60°, for example, 45°. Exemplarily, the convergence point of the two right-angle sides of the second brace plate 5 protrudes from the second end 102 of the through beam 1 along the first direction. The setting of each brace plate is beneficial to the anti-torsion of the reinforcement structure 100. Exemplarily, the dimension of the first brace plate 3 along the first direction is the same as that of the second brace plate 5 along the first direction. The reinforcement structure 100 has good strength and balanced stress. The shapes of the parts of the reinforcement structure 100 are the same or similar, which is easy to manufacture.

[0067] In the reinforcement structure 100, the side of the brace plate for connecting the mounting plate can be of the same length as the mounting plate to provide stable and good support for the mounting plate. For example, the second right-angle side 302 is of the same length as and aligned with the first mounting plate 2 along the X-axis direction.

[0068] Exemplarily, weight-reducing holes can be provided in the first brace plate 3, the second brace plate 5, or the third brace plate 8, etc.

[0069] In some embodiments, the reinforcement structure 100 further includes a second support member 9. The second support member 9 is located between the first support member 6 and the first mounting plate 2 along the first direction. Exemplarily, the first mounting plate 2 is provided at the first end 101, and the second mounting plate 4 and the third mounting plate 7 are provided at the second end 102. The second support member 9 is located on the second side of the through beam 1 along the second direction, that is, the second support member 9 and the first mounting plate 2 are on both sides of the through beam 1. The reinforcement structure 100 has good anti-torsion performance, balanced structure, and stable installation. The second support member 9 can have only one leg 61. In some other embodiments, a fourth mounting plate can also be provided at the first end 101.

[0070] In some embodiments, the through beam 1 includes a first section 110, a second section 120, and a third section 130 connected in sequence, and the third section 130 and the first section 110 are both deflected to the same side along a third direction parallel to the Z-axis direction relative to the second section 120, such as Figure 2 As shown, the first support member 6 and the second support member 9 are deflected to the third side. Exemplarily, the first support member 6 and the second support member 9 each extend to the fourth side along the third direction relative to the second section 120. The first support member 6 and the first section 110 are located on different sides relative to the second section 120. Figure 1 When the reinforcing structure 100 is installed on the vehicle body 200, the first support member 6 and the second support member 9 are both facing the bottom 210 and are used to be connected to the vehicle body 200. The third section 130 and the first section 110 are tilted relative to the bottom 210 of the vehicle body 200. In other words, the second section 120 is concave toward the bottom 210 relative to the first end 101 and the second end 102. The reinforcing structure 100 occupies less space in the vehicle body 200, and can effectively avoid electrical pipelines and exhaust pipelines, effectively reducing the amount of changes in space layout; in addition, the first support member 6 is easier to connect to the vehicle body 200.

[0071] In some embodiments, the first support member 6 is located in the second section 120; the first mounting plate 2 is located in the first section 110, and the second mounting plate 4 is located in the third section 130. The reinforcement structure 100 is stably connected to ensure the ability to improve the torsional rigidity of the vehicle body 200; the first mounting plate 2 and the second mounting plate 4 are relatively small in size, which is conducive to weight reduction.

[0072] refer to Figure 3 The through beam 1 is a round tube. The through beam 1 may also have other cross-sectional shapes, for example, the first end 101 and the second end 102 may be flattened. Optionally, the through beam 1 may be a round steel tube, which is a universal cross-sectional solution with high feasibility, high cost performance and good spatial adaptability. The first diagonal brace plate 3, the second diagonal brace plate 5 and the first support member 6 are respectively sheet metals welded to the through beam 1. The reinforcement structure 100 has low cost, is easy to manufacture and has high strength. The third diagonal brace plate 8 may also be a welded sheet metal.

[0073] Exemplarily, the first mounting plate 2 is welded to the first diagonal support plate 3. The first mounting plate 2 intersects with the first diagonal support plate 3, and the first diagonal support plate 3 can be welded at the middle position of the first mounting plate 2 along the Z-axis direction. The second mounting plate 4 can be welded to the second diagonal support plate 5; the third mounting plate 7 can be welded to the third diagonal support plate 8.

[0074] Exemplarily, the wall thickness of the through beam 1 ranges from 1 mm to 5 mm. For example, the inner diameter φ1 of the through beam 1 is 43 mm, and the outer diameter φ2 is 48 mm.

[0075] In the reinforcement structure 100, there are multiple design change points such as the thickness and size of the diagonal bracing plate, the size of the through beam 1, the first support member 6, and the second support member 9. The design can be adjusted according to the design indicators. By adjusting the above variable parameters, the effective range of the reinforcement structure 100 for improving the body torsion can reach from 0 N·m / deg to 2000 N·m / deg. The reinforcement structure 100 has excellent balance in solving multiple difficult problems such as structural reinforcement, cost, and weight control at a certain position of the body 200.

[0076] The reinforcement structure 100 of the present disclosure embodiment ensures the reuse part indicators of vehicle model development, and the relative modification amount is small. The reinforcement structure 100 is a retrofit part based on the body 200, and the assembly and disassembly are relatively convenient. The contribution of the reinforcement structure 100 to the body torsion improvement is obvious, and the cost performance of the body torsion contribution is relatively high. Figures 1 to 5 The reinforcement structure 100 of the illustrated embodiment increases the body torsion stiffness of the body 200 by about 1300 N·m / deg. The weight of the reinforcement structure 100 is 6883 g, and its cost performance is about 5.29 (g / N·m / deg).

[0077] Reference Figure 1 Referring to

[0078] The body 200 includes a bottom 210, a first side portion 220, and a second side portion 230 connected to the bottom. The first side portion 220 and the second side portion 230 are spaced apart along a first direction. The first mounting plate 2 of the reinforcement structure 100 is connected to the first side portion 220, and the second mounting plate 4 is connected to the second side portion 230.

[0079] The body assembly 300 of the present disclosure embodiment has high torsion stiffness and does not require major changes to the body 200. By setting the reinforcement structure 100 to improve the torsional stiffness, the cost performance of the body assembly 300 is high. By configuring the wall thickness of the steel pipe and the thickness of the steel plate, the body assembly 300 is light in weight and low in cost.

[0080] Exemplarily, the bottom 210 includes a cross beam 211 and a small longitudinal beam 212. The bottom 210 may include longitudinal beams or other sheet metal parts, etc. As Figure 1 shown, the small longitudinal beam 212 may be connected between two cross beams 211. The through beam 1 may be suspended relative to the bottom 210; the first support member 6 and the second support member 9 may be connected to the cross beam 211 or the small longitudinal beam 212.

[0081] Reference Figure 5, the embodiments of the present disclosure also provide an automobile 500, which includes the aforementioned body assembly 300. The automobile 500 has good performance under torsional conditions.

[0082] In some embodiments, the body assembly 300 is used to mount the battery pack 400, and the automobile 500 can be a new energy vehicle. The reinforcing structure 100 can be installed in front of or behind the battery pack 400 along the X-axis direction. By setting the reinforcing structure 100, the body assembly 300 has good torsional stiffness in the case of a relatively wide size.

[0083] In some other embodiments, the body assembly 300 includes the battery pack 400.

[0084] The body assembly 300 is also used to mount other accessories such as cables and pipelines. The reinforcing structure 100 is detachably connected to the body 200, which is beneficial to the installation and maintenance of various accessories.

[0085] The technical features of the above-disclosed embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0086] In the above-disclosed embodiments, unless otherwise clearly specified and limited, the execution order of each step is not limited. For example, they can be executed in parallel or in different orders successively. The sub-steps of each step can also be executed alternately. Various forms of the process can be used, and steps can also be reordered, added, or deleted, as long as the desired results of the technical solutions provided by the embodiments of the present disclosure can be achieved. This is not limited herein.

[0087] The above-disclosed embodiments only represent several embodiments of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the patent protection scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the patent protection scope required by the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A reinforcement structure, used for connecting to a vehicle body, the vehicle body comprising a bottom and a first side portion and a second side portion connected to the bottom, the first side portion and the second side portion being spaced apart along a first direction, characterized in that: The reinforcement structure comprises: A through beam having a first end and a second end opposite to each other along the first direction; a first mounting plate, located at the first end, the first mounting plate being used to be connected to the first side portion; a first diagonal brace plate, fixed to the through beam and to the first mounting plate; a second mounting plate, located at the second end, the second mounting plate being used to be connected to the second side portion; A second diagonal support plate, fixed to the through beam and to the second mounting plate; and A first support member is fixed to the through beam, and the first support member is used to be connected to the bottom.

2. The reinforcement structure according to claim 1, characterized in that: The first support member includes two legs located on both sides of the through beam along a second direction perpendicular to the first direction; and / or the legs of the first support member are provided with screw holes, and the first mounting plate and the second mounting plate are respectively provided with other screw holes.

3. The reinforcement structure according to claim 1, characterized in that: It also includes a third mounting plate and a third diagonal support plate, wherein the third mounting plate is located at the second end, and the third mounting plate and the second mounting plate are respectively located on both sides of the through beam along a second direction perpendicular to the first direction, and the third diagonal support plate is fixed to the through beam and to the third mounting plate.

4. The reinforcement structure according to claim 3, characterized in that: The first mounting plate is located on a first side of the through beam along the second direction; The reinforcement structure further includes a second support member, the second support member is located between the first support member and the first mounting plate along the first direction, and the second support member is located at a second side of the through beam along the second direction.

5. The reinforcement structure according to claim 1, characterized in that: The through beam includes a first section, a second section and a third section connected in sequence, and the third section and the first section are both deflected to the same side along a third direction relative to the second section.

6. The reinforcement structure according to claim 5, characterized in that: The first support member is located in the second section, and the first support member extends from the second section along the third direction to the other side opposite to the first section; the first mounting plate is located in the first section, and the second mounting plate is located in the third section.

7. The reinforcement structure according to any one of claims 1 to 6, characterized in that: The through beam is a round steel tube; the first diagonal brace plate, the second diagonal brace plate and the first support member are respectively sheet metals welded to the through beam.

8. The reinforcement structure according to claim 7, characterized in that: The first diagonal brace plate and the second diagonal brace plate are respectively parallel to the through beam, and the first diagonal brace plate and the second diagonal brace plate respectively include three sides surrounded by a right-angled triangle, and the deflection range of the hypotenuse of the three sides relative to the through beam is 30° to 60°; the size of the first diagonal brace plate along the first direction is the same as the size of the second diagonal brace plate along the first direction.

9. A vehicle body assembly, characterized in that: include: A vehicle body, comprising a bottom portion and a first side portion and a second side portion connected to the bottom portion, wherein the first side portion and the second side portion are spaced apart along a first direction; as well as A reinforcement structure as claimed in any one of claims 1 to 8.

10. An automobile, characterized in that Comprising the vehicle body assembly as claimed in claim 9.

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