Body-in-white structure and vehicle

Abstract

This application provides a body-in-white structure and vehicle, relating to the field of body-in-white structure technology. The body-in-white structure provided by this application includes an A-pillar reinforcing plate and side beams. The A-pillar reinforcing plate is provided with lap joints, including a first lap joint and a second lap joint. The side beams are provided with connectors, including a first connecting part and a second connecting part. The connectors are provided with multiple fixing structures. The first connecting part is connected to the first lap joint through partial fixing structures, and the second connecting part is connected to the second lap joint through partial fixing structures. Some fixing structures are arranged along a first direction, and some fixing structures are arranged along a second direction, with the first and second directions forming an angle. By dividing the fixing structures into those arranged along the first and second directions, a non-linear connection layout is formed. This can decompose the lateral concentrated stress into different directions, avoiding the unidirectional stress concentration of traditional straight welds, and significantly improving the impact resistance of the connection area.

Description

Technical Field

[0001] This application relates to body-in-white structure technology, and more particularly to a body-in-white structure and vehicle. Background Technology

[0002] As vehicle technology advances, consumers are demanding increasingly stringent safety standards for vehicles. In addition to frontal collisions, small overlap offset collisions, and rear-end collisions, consumers are also placing higher demands on the safety performance of vehicles in side collisions and during rollovers.

[0003] In related technologies, the structures in the vehicle's body-in-white that are related to safety performance during side impacts and rollovers mainly include the A-pillar and side beams. The A-pillar and side beams are connected, and in traditional technologies, sheet metal parts that are welded together to the A-pillar and side beams are usually used. The A-pillar has an overlapping surface, and the side beams are first neatly overlapped with the overlapping surface and then welded together. The resulting welds are usually arranged in straight lines.

[0004] However, during a side impact or rollover, stress concentration can easily occur in the straight weld between the A-pillar and the side beam, leading to breakage at the joint between the A-pillar and the side beam. Utility Model Content

[0005] In view of this, this application provides a body-in-white structure and vehicle that can improve the connection strength between the A-pillar and the side beam, and avoid stress concentration that could lead to breakage at the joint between the A-pillar and the side beam.

[0006] To achieve the above objectives, this application provides a body-in-white structure and vehicle, which adopts the following technical solution:

[0007] In one aspect, this application provides a body-in-white structure, including an A-pillar reinforcement plate and side beams;

[0008] The A-column reinforcing plate and the side beam are arranged along the first direction;

[0009] The A-pillar reinforcing plate is provided with an overlapping member, which includes a first overlapping part and a second overlapping part, and the first overlapping part and the second overlapping part are connected along the first direction;

[0010] The body-in-white structure also includes multiple fixing structures, the first connecting part is connected to the first overlapping part through a portion of the fixing structures, and the second connecting part is connected to the second overlapping part through a portion of the fixing structures;

[0011] Some of the fixing structures are arranged along the first direction, and some of the fixing structures are arranged along the second direction, with the first direction and the second direction forming an angle.

[0012] In one possible implementation, the body-in-white structure provided in this application has a second overlapping portion disposed on the side of the first overlapping portion away from the side beam in the first direction.

[0013] In one possible implementation, the body-in-white structure and vehicle provided in this application have a length of the first overlapping portion greater than the length of the second overlapping portion in the second direction;

[0014] The plurality of fixing structures include a first fixing structure and a second fixing structure, wherein the first fixing structure connects the first overlapping portion and the first connecting portion, and the second fixing structure connects the second overlapping portion and the second connecting portion;

[0015] In the first direction, the second fixing structure is farther away from the side beam relative to the first fixing structure.

[0016] In one possible implementation, the body-in-white structure and vehicle provided in this application have at least a portion of the second fixing structure arranged along the first direction;

[0017] And / or, at least a portion of the second fixing structure and at least a portion of the first fixing structure are arranged along the second direction.

[0018] In one possible implementation, the body-in-white structure and vehicle provided in this application have the first overlapping portion having at least one of a first recess and a first protrusion; and / or, the second overlapping portion having at least one of a second recess and a second protrusion.

[0019] In one possible implementation, the body-in-white structure and vehicle provided in this application, wherein the overlapping member is configured as an overlapping groove, the connecting member is disposed in the overlapping groove, and the connecting member abuts against the bottom surface of the overlapping groove.

[0020] In one possible implementation, the body-in-white structure and vehicle provided in this application have a first recess in the first overlapping portion, and the first recess is recessed inward relative to the bottom surface of the overlapping groove.

[0021] And / or, the second overlapping portion is provided with a second recess, which is recessed inward relative to the bottom surface of the overlapping groove.

[0022] In one possible implementation, the body-in-white structure and vehicle provided in this application have the first connecting portion flush with the surface of the A-pillar reinforcement plate, and the second connecting portion flush with the surface of the A-pillar reinforcement plate.

[0023] In one possible implementation, the body-in-white structure and vehicle provided in this application have a welded structure as the fixing structure.

[0024] Secondly, this application provides a vehicle including a body and the aforementioned body-in-white structure, wherein the body-in-white structure can provide an mounting base for the body.

[0025] The body-in-white structure and vehicle provided in this application include an A-pillar reinforcing plate and side beams. The A-pillar reinforcing plate and side beams are arranged along a first direction. The A-pillar reinforcing plate is provided with a lap joint, which includes a first lap portion and a second lap portion, connected along the first direction. The side beams are provided with connectors, which include a first connecting portion and a second connecting portion. The body-in-white structure also includes multiple fixing structures. The first connecting portion is connected to the first lap portion through a partial fixing structure, and the second connecting portion is connected to the second lap portion through a partial fixing structure. Some fixing structures are arranged along the first direction, and some fixing structures are arranged along a second direction, with the first direction and the second direction forming an angle. By dividing the fixing structures into those arranged along the first direction and the second direction, with the first direction and the second direction forming an angle, a non-linear connection layout is formed. Through the above arrangement, the staggered fixed structures can decompose the concentrated stress during side collisions or rollovers into different directions, avoiding the unidirectional stress concentration of traditional straight welds, and significantly improving the impact resistance of the connection area. Furthermore, the lap joint is divided into a first lap section and a second lap section, which are connected to the first and second connecting sections of the connector. By increasing the contact area and connection path, a double redundant support structure is formed. When subjected to local impact, the load can be borne jointly by the first and second lap sections, avoiding overload failure at a single connection point. This further improves the connection strength between the A-pillar and the side beam, preventing stress concentration that could lead to fracture at the lap joint of the A-pillar and the side beam.

[0026] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the technical solutions provided by this application, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0027] The specific embodiments of this application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this application, and this application is not limited to the specific embodiments described below.

[0028] Figure 1 This is a schematic diagram of the connection structure between the A-column reinforcing plate and the side beam provided in an embodiment of this application;

[0029] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0030] Figure 3 This is a partial structural schematic diagram of the A-pillar reinforcement plate provided in an embodiment of this application;

[0031] Figure 4 This is a partial structural schematic diagram of the side beam provided in an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100, A-pillar reinforcement plate; 200, side beam; 300, lap joint; 310, first lap joint; 311, first recess; 320, second lap joint; 321, second recess; 400, connector; 410, first connecting part; 420, second connecting part; 500, fixing structure; 500a, first fixing structure; 500b, second fixing structure.

[0034] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0036] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise specified precisely.

[0039] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0040] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0041] As the automotive industry accelerates its development towards intelligence and lightweighting, consumers' demands for vehicle passive safety performance have expanded from basic protection to occupant protection under extreme conditions. In some mainstream safety evaluation systems, the side impact test speed has been increased to 50km / h, with the addition of stringent scenarios such as 25% offset collision and pole impact, and mandatory rollover safety testing has also been added.

[0042] Against this backdrop, the A-pillar-side beam connection system in traditional body-in-white structures faces significant challenges. In existing body manufacturing processes, the A-pillar assembly serves as the primary transmission path for side impact forces, and its connection quality with the side beam directly affects the vehicle's crashworthiness. Traditional sheet metal welding processes employ laser welding technology to lap-weld the side beam to the A-pillar body. Specifically, a planar lap area is created on the inner side of the A-pillar, and the side beam is butt-welded to it, forming a straight, continuous weld. While this process ensures basic connection strength, it has significant drawbacks under dynamic loads: when the impact force from a side collision is transmitted to the A-pillar, the straight weld is prone to stress concentration at the weld start and end points and lap gaps due to uneven stress distribution, leading to connection node failure.

[0043] More noteworthy is the multi-directional composite stress characteristic under vehicle rollover conditions. When the vehicle body rolls 360°, the A-pillar needs to withstand an impact of 3-5 times the force of gravity in the vertical direction, accompanied by lateral bending torque. At this time, the tear resistance of straight welds decreases significantly.

[0044] Based on the aforementioned technical problems, this application provides a body-in-white structure and vehicle. In this technical solution, the body-in-white structure includes an A-pillar reinforcing plate and side beams; the A-pillar reinforcing plate and side beams are arranged along a first direction. The A-pillar reinforcing plate is provided with a lap joint, which includes a first lap portion and a second lap portion, connected along the first direction; the side beams are provided with connectors, which include a first connecting portion and a second connecting portion. The body-in-white structure also includes multiple fixing structures, where the first connecting portion is connected to the first lap portion via a partial fixing structure, and the second connecting portion is connected to the second lap portion via a partial fixing structure. Some fixing structures are arranged along the first direction, and some fixing structures are arranged along a second direction, with the first and second directions forming an angle. By dividing the fixing structures into those arranged along the first and second directions, with the first and second directions forming an angle, a non-linear connection layout is formed. Through the above arrangement, the staggered fixed structures can decompose the concentrated stress during side collisions or rollovers into different directions, avoiding the unidirectional stress concentration of traditional straight welds, and significantly improving the impact resistance of the connection area. Furthermore, the lap joint is divided into a first lap section and a second lap section, which are connected to the first and second connecting sections of the connector. By increasing the contact area and connection path, a double redundant support structure is formed. When subjected to local impact, the load can be borne jointly by the first and second lap sections, avoiding overload failure at a single connection point. This further improves the connection strength between the A-pillar and the side beam, preventing stress concentration that could lead to fracture at the lap joint of the A-pillar and the side beam.

[0045] It should be noted that, Figures 1 to 4 This diagram illustrates a simplified schematic of the body-in-white structure and various components within the vehicle. The specific structures of the body-in-white structure and other components within the vehicle are not limited to these details. Figures 1 to 4 of examples.

[0046] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0047] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the embodiment of this application, a body-in-white structure and vehicle are provided, wherein the body-in-white structure includes an A-pillar reinforcing plate 100 and a side beam 200.

[0048] The A-pillar reinforcement plate 100 serves to strengthen the structural strength of the A-pillar assembly and can also connect with other structural components. The A-pillar reinforcement plate 100 and the side beam 200 are arranged along a first direction. It should be noted that the first direction can be the length direction of the vehicle, such as... Figure 3 and Figure 4 In the X direction. Typically, in the first direction, the A-pillar reinforcement plate 100 is positioned in front of the side beam 200, meaning the A-pillar reinforcement plate 100 is closer to the front of the vehicle. It should also be noted that the X, Y, and Z arrows in the attached diagram are mutually perpendicular in three-dimensional space.

[0049] The A-pillar reinforcement plate 100 is provided with an overlap member 300, which includes a first overlap portion 310 and a second overlap portion 320. The first overlap portion 310 and the second overlap portion 320 are connected along a first direction. The side beam 200 is provided with a connector 400, which includes a first connecting portion 410 and a second connecting portion 420.

[0050] The body-in-white structure also includes multiple fixing structures 500. A first connecting portion 410 is connected to a first overlapping portion 310 via partial fixing structures 500, and a second connecting portion 420 is connected to a second overlapping portion 320 via partial fixing structures 500. Partial fixing structures 500 are arranged along a first direction, and partial fixing structures 500 are arranged along a second direction, with an angle between the first and second directions. Here, the second direction can be the width direction of the vehicle, and partial fixing structures 500 are arranged along the length direction of the vehicle. When the second direction is the width direction of the vehicle, as shown by arrow Y in the attached figure, the angle between the first and second directions is 90°. (Refer to...) Figure 3 and Figure 4 As shown, the second direction can also be the vehicle's height direction, as indicated by arrow Z in the attached diagram, with some fixed structures 500 arranged vertically along the vehicle's height direction.

[0051] In the above embodiment, the fixing structure 500 is arranged along a first direction and a second direction, with the first direction and the second direction forming an angle. This creates a non-linear connection layout. Through this arrangement, the staggered fixing structures 500 can decompose the concentrated stress during side impacts or tumbling into different directions, avoiding the unidirectional stress concentration of traditional straight welds and significantly improving the impact resistance of the connection area.

[0052] The lap joint 300 includes a first lap portion 310 and a second lap portion 320, and is correspondingly connected to the first connecting portion 410 and the second connecting portion 420 of the connector 400. By increasing the contact area and connection path, a double redundant support structure is formed. When subjected to local impact, the load can be borne jointly by the first lap portion 310 and the second lap portion 320, avoiding overload failure at a single connection point. This further improves the connection strength between the A-pillar and the side beam 200, preventing stress concentration that could lead to breakage at the lap joint of the A-pillar and the side beam 200.

[0053] In one possible implementation, in the first direction, such as Figure 3 In the X direction, the second lap joint 320 is located on the side of the first lap joint 310 away from the side beam 200. Alternatively... Figure 3 The dashed line in the middle is the dividing line, and the first overlapping part 310 and the second overlapping part 320 are set at... Figure 3 On the left and right sides of the central dashed line, the second lap portion 320 is further away from the side beam 200 than the first lap portion 310.

[0054] In the above embodiment, the second lap portion 320 is located on the side of the first lap portion 310 away from the side beam 200, forming a stepped lap structure. This causes the connection area between the A-pillar reinforcing plate 100 and the side beam 200 to be spatially layered and staggered, avoiding the single stress path of traditional straight welds. In practical applications, during side collisions or rollovers, the external force will pass through the first lap portion 310 and the second lap portion 320 sequentially, forming multi-level buffering, reducing local stress concentration, and lowering the risk of fracture at the lap joint.

[0055] In one possible implementation, in the second direction, the length of the first overlap 310 is greater than the length of the second overlap 320. For example, Figure 3 In the direction indicated by the Y-arrow, the length of the first overlapping portion 310 is greater than the length of the second overlapping portion 320, forming a gradient structure that is longer in the front and shorter in the back. During a side collision or rollover, the longer first overlapping portion 310 provides a larger contact area, preferentially bearing and dispersing the impact load, and reducing the stress per unit area; the shorter second overlapping portion 320 mainly bears the remaining load, avoiding excessive deformation, thus forming a stepped energy absorption mechanism.

[0056] The plurality of fixing structures 500 include a first fixing structure 500a and a second fixing structure 500b. The first fixing structure 500a connects the first overlapping part 310 and the first connecting part 410, and the second fixing structure 500b connects the second overlapping part 320 and the second connecting part 420.

[0057] In the first direction, the second fixed structure 500b is farther away from the side beam 200 relative to the first fixed structure 500a.

[0058] In the above embodiment, the first fixing structure 500a connects the first overlapping part 310 and the first connecting part 410, and the second fixing structure 500b connects the second overlapping part 320 and the second connecting part 420.

[0059] The first fixed structure 500a is arranged along the second direction to resist the lateral shear force of the side collision; the second fixed structure 500b is arranged along the first direction to resist the longitudinal bending moment during rollover, forming a multi-directional constraint network.

[0060] The second fixed structure 500b is located further away from the side beam 200 relative to the first fixed structure 500a. As a remote connection point, the second fixed structure 500b extends the load transfer path, reduces the bending moment at the lap joint, avoids stress concentration in the area near the side beam 200, and reduces the risk of weld tearing.

[0061] The fixed structure 500 is divided into a first fixed structure 500a and a second fixed structure 500b, with different arrangement directions. When the fixed structure 500 is a welded structure, the continuous heat-affected zone of the traditional straight weld is avoided, reducing welding deformation; regional welding makes it easier to control the weld quality and reduces the difficulty of the process.

[0062] In one possible implementation, at least a portion of the second fixing structure 500b is arranged along the first direction. For specific implementation, refer to... Figure 3 As shown, the second fixing structure 500b is arranged in two rows, with each row of the second fixing structure 500b arranged in the direction indicated by the Z arrow in the attached figure. Each row of the second fixing structure 500b also includes multiple fixing structures 500 arranged in the direction indicated by the X arrow. For example, there are four second fixing structures 500b, which are arranged at the four corners of a rectangle.

[0063] And / or, at least a portion of the second fixing structure 500b and at least a portion of the first fixing structure 500a are arranged along the second direction. For example Figure 3 The first fixing structure 500a is located to the right of the dashed line. The fixing structures 500 in the first fixing structure 500a are arranged along the second direction, and can be along... Figure 3 The arrangement can be in the direction indicated by the Y-arrow, or it can be arranged in the direction indicated by the Z-arrow. In specific implementation, four first fixing structures 500a are provided, and the four first fixing structures 500a are arranged at intervals in the extension direction of the first overlapping part 310. The first fixing structures 500a and the second fixing structures 500b are combined to form a total of eight fixing structures 500, which can further improve the connection strength between the A-pillar reinforcing plate 100 and the side beam 200.

[0064] In the above embodiments, the second fixed structure 500b arranged along the first direction provides continuous support in the vehicle's longitudinal direction, balancing tensile or compressive forces in the longitudinal direction and preventing stress concentration on a single cross-section. The second fixed structure 500b arranged along the second direction forms cross supports in the vertical or lateral directions, distributing the load across multiple dimensions and reducing local stress peaks. The multi-directionally arranged fixed structures 500 form a grid-like constraint network, limiting the relative displacement between the A-pillar reinforcement plate 100 and the side beam 200. This significantly improves the bending and torsional stiffness of the connection area, delaying structural failure.

[0065] In one possible implementation, to further improve the structural strength of the lap joint 300 of the A-pillar reinforcing plate 100, the first lap portion 310 is provided with at least one of a first recess 311 and a first protrusion; and / or, the second lap portion 320 is provided with at least one of a second recess 321 and a second protrusion. For example, see attached... Figure 3 As shown, the first overlapping portion 310 is provided with a first recess 311, and the second overlapping portion 320 is provided with a second recess 321. The first recess 311 and the second recess 321 are connected or integrally formed. By providing the first recess 311 and the second recess 321, the plate-like structure of the first overlapping portion 310 or the second overlapping portion 320 is changed, forming a structure with a reinforcing rib effect. This can significantly improve the structural strength of the overlapping member 300.

[0066] In one possible implementation, the overlapping member 300 is configured as an overlapping groove, and the connecting member 400 is disposed in the overlapping groove, with the connecting member 400 abutting against the bottom surface of the overlapping groove.

[0067] In the above embodiment, the overlapping member 300 is configured as an overlapping groove. The connector 400 is embedded in the overlapping groove and directly contacts the bottom surface of the groove. The groove structure restricts the lateral displacement of the connector 400 through geometric nesting, preventing it from coming out of the overlapping groove under shear force. The large-area contact between the bottom surface of the overlapping groove and the connector 400 forms surface contact support, significantly improving the crush resistance. The external force of collision impact can be directly transmitted to the overlapping member 300 through the bottom surface of the groove, avoiding stress concentration at the connection edge. In addition, by setting the groove structure of the overlapping groove, it also has a certain positioning function for the installation and fixing of the connector 400, improving the installation accuracy and stability of the A-pillar reinforcement plate 100 and the side beam 200. Through the groove design, the local strength can be improved without increasing the material thickness. The depth and shape of the groove can be flexibly adjusted according to the stress requirements to achieve the optimal configuration of material distribution.

[0068] In one possible implementation, the first overlapping portion 310 is provided with a first recess 311, which is recessed inward relative to the bottom surface of the overlapping groove.

[0069] And / or, the second overlapping portion 320 is provided with a second recess 321, the second recess 321 being recessed inward relative to the bottom surface of the overlapping groove.

[0070] In the above embodiments, by providing the first recess 311 and the second recess 321, the structural stability of the overlap groove can be significantly enhanced, thereby improving the structural stability of the A-pillar reinforcing plate 100.

[0071] In one possible implementation, the first connecting portion 410 is flush with the surface of the A-pillar reinforcement plate 100, and the second connecting portion 420 is flush with the surface of the A-pillar reinforcement plate 100.

[0072] In conventional technologies, if the connector 400 protrudes from the surface of the A-pillar reinforcement plate 100, it will create a geometrical abrupt change at the weld or lap joint, causing stress concentration at the protruding part during collision or rollover, which can easily lead to crack initiation. In the above embodiment, the flush design makes the load transfer between the connector 400 and the A-pillar reinforcement plate 100 more uniform, avoiding local stress peaks and thus delaying fatigue failure. After the connector is flush with the surface of the A-pillar, the two form an almost "integrated" stress-bearing surface. When subjected to lateral compression or longitudinal bending moment, the force flow is transmitted more smoothly along the continuous surface, improving the overall resistance to deformation.

[0073] In addition, the connecting part is flush with the surface of the A-pillar reinforcement plate 100, reducing the difficulty of later repair and painting.

[0074] In one possible implementation, the fixing structure 500 is a welded structure. Specifically, the connector 400 may be provided with clearance holes, which are corresponding to the fixing structure 500. Welding can be performed by injecting solder between the connector 400 and the lap joint 300 through the clearance holes. Alternatively, the solder can be pre-loaded between the connector and the lap joint, and then thermoforming is performed using a laser. The embodiments of this application do not limit the implementation form of welding.

[0075] In one possible implementation, this application embodiment also provides a vehicle, including the vehicle body and the above-described body-in-white structure, wherein the body-in-white structure has been described above and will not be repeated here. A vehicle equipped with an upper body-in-white structure can improve the connection strength between the A-pillar and the side beam 200, and avoid stress concentration that could cause breakage at the joint between the A-pillar and the side beam 200.

[0076] The implementation principle of a body-in-white structure and vehicle according to an embodiment of this application is as follows: The body-in-white structure includes an A-pillar reinforcing plate 100 and a side beam 200; the A-pillar reinforcing plate 100 and the side beam 200 are arranged along a first direction. The A-pillar reinforcing plate 100 is provided with a connecting member 300, which includes a first connecting portion 310 and a second connecting portion 320, and the first connecting portion 310 and the second connecting portion 320 are connected along the first direction; the side beam 200 is provided with a connecting member 400, which includes a first connecting portion 410 and a second connecting portion 420. The body-in-white structure also includes multiple fixing structures 500, the first connecting portion 410 is connected to the first connecting portion 310 through partial fixing structures 500, and the second connecting portion 420 is connected to the second connecting portion 320 through partial fixing structures 500. Some fixing structures 500 are arranged along the first direction, and some fixing structures 500 are arranged along the second direction, with the first direction and the second direction forming an angle. By dividing the fixed structure 500 into two sections arranged along a first direction and a second direction, with the first and second directions forming an angle, a non-linear connection layout is formed. Through this arrangement, the staggered fixed structure 500 can decompose the concentrated stress during side impacts or rollovers into different directions, avoiding the unidirectional stress concentration of traditional straight welds and significantly improving the impact resistance of the connection area. Furthermore, the lap joint 300 is divided into a first lap portion 310 and a second lap portion 320, which are correspondingly connected to the first connecting portion 410 and the second connecting portion 420 of the connector 400. By increasing the contact area and connection path, a double redundant support structure is formed. When subjected to localized impact, the load can be shared by the first lap portion 310 and the second lap portion 320, avoiding overload failure at a single connection point. This further improves the connection strength between the A-pillar and the side beam 200, preventing stress concentration that could lead to fracture at the lap joint of the A-pillar and the side beam 200.

[0077] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein.

[0078] The embodiments in this application are intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed in this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0079] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A body-in-white structure, characterized in that, include: A-pillar reinforcement plate and side beams; The A-column reinforcing plate and the side beam are arranged along the first direction; The A-pillar reinforcing plate is provided with an overlapping member, which includes a first overlapping part and a second overlapping part, and the first overlapping part and the second overlapping part are connected along the first direction; The side beam is provided with a connector, which includes a first connecting part and a second connecting part; The body-in-white structure also includes multiple fixing structures, the first connecting part is connected to the first overlapping part through a portion of the fixing structures, and the second connecting part is connected to the second overlapping part through a portion of the fixing structures; Some of the fixing structures are arranged along the first direction, and some of the fixing structures are arranged along the second direction, with the first direction and the second direction forming an angle.

2. The body-in-white structure according to claim 1, characterized in that, In the first direction, the second lap joint is disposed on the side of the first lap joint away from the side beam.

3. The body-in-white structure according to claim 2, characterized in that, In the second direction, the length of the first overlapping portion is greater than the length of the second overlapping portion; The plurality of fixing structures include a first fixing structure and a second fixing structure, wherein the first fixing structure connects the first overlapping portion and the first connecting portion, and the second fixing structure connects the second overlapping portion and the second connecting portion; In the first direction, the second fixing structure is farther away from the side beam relative to the first fixing structure.

4. The body-in-white structure according to claim 3, characterized in that, At least a portion of the second fixing structure is arranged along the first direction; And / or, at least a portion of the second fixing structure and at least a portion of the first fixing structure are arranged along the second direction.

5. The body-in-white structure according to claim 1, characterized in that, The first overlapping portion is provided with at least one of a first recess and a first protrusion; and / or, the second overlapping portion is provided with at least one of a second recess and a second protrusion.

6. The body-in-white structure according to claim 1, characterized in that, The overlapping member is configured as an overlapping groove, the connecting member is disposed in the overlapping groove, and the connecting member abuts against the bottom surface of the overlapping groove.

7. The body-in-white structure according to claim 6, characterized in that, The first overlapping portion is provided with a first recess, which is recessed inward relative to the bottom surface of the overlapping groove; And / or, the second overlapping portion is provided with a second recess, which is recessed inward relative to the bottom surface of the overlapping groove.

8. The body-in-white structure according to claim 6, characterized in that, The first connecting part is flush with the surface of the A-pillar reinforcement plate, and the second connecting part is flush with the surface of the A-pillar reinforcement plate.

9. The body-in-white structure according to any one of claims 1 to 8, characterized in that, The fixing structure is a welded structure.

10. A vehicle, characterized in that, It includes a body and a body-in-white structure as described in any one of claims 1 to 9, wherein the body-in-white structure provides a mounting base for the body.

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