Vehicle body joint and vehicle

Abstract

The invention relates to the technical field of vehicles, and discloses a vehicle body joint and a vehicle, the vehicle body joint comprises: an inner plate body including a first inner plate body, a second inner plate body and a third inner plate body in triangular distribution; the reinforcing seat is arranged on at least one connecting end of the inner plate body; the rib group is arranged on the inner plate body and is connected with at least one reinforcing seat; the vehicle body connector is integrally formed. According to the car body connector, the three connecting ends are formed through the inner plate body, and multiple reinforcement of the reinforcing base and the rib sets is matched, so that efficient bearing and deformation resistance of the structure are achieved, the torsional rigidity of the car body connector and the stability of a framework are improved, the deformation condition of a back door opening is reduced, and the torsional rigidity of a car body is improved. And the vehicle body joint is integrally formed, so that welding points in the manufacturing process are reduced, the potential stress concentration risk is reduced, and the situation of rear door opening deformation caused by poor welding precision is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle body joint and a vehicle. Background Art

[0002] In the upper body welded assembly, the stability and strength of the D-pillar joint determine the torsional rigidity of the upper body. An improperly structured D-pillar joint can easily cause deformation of the welded assembly, leading to localized deformation of the rear door frame. To improve the strength of the D-pillar joint, a common method is to weld a reinforcement plate at the D-pillar joint location. However, this slow commissioning process and high precision fluctuations in the welded assembly can lead to reduced production efficiency and yield rates, making it unsuitable for large-scale production. Summary of the Invention

[0003] In view of this, the present invention provides a vehicle body joint and a vehicle to solve the problem that welding a reinforcement plate to a D-pillar joint easily leads to reduced production efficiency and lowered pass rate.

[0004] In a first aspect, the present invention provides a vehicle body joint, comprising:

[0005] The inner panel body includes a first inner panel body, a second inner panel body, and a third inner panel body distributed in a triangular pattern, wherein the first end of the first inner panel body is connected to the first end of the second inner panel body to form a first connecting end, the second end of the first inner panel body is connected to the first end of the third inner panel body to form a second connecting end, and the second end of the second inner panel body is connected to the second end of the third inner panel body to form a third connecting end;

[0006] A reinforcement seat is provided on at least one of the connection ends of the inner plate body, wherein the connection ends include a first connection end, a second connection end, and a third connection end;

[0007] A rib group is provided on the inner plate body and connected to at least one of the reinforcement seats;

[0008] The body joints are molded in one piece.

[0009] Beneficial Effects: The body joint provided by the embodiments of the present invention features three connecting ends formed by the inner panel body, and multiple reinforcements such as the reinforcing seat and rib assembly achieve efficient load-bearing and deformation resistance. This increases the torsional rigidity and skeletal stability of the body joint, thereby reducing deformation of the rear door opening and improving the torsional rigidity of the vehicle body. Furthermore, the body joint is integrally molded, reducing the number of weld points during the manufacturing process, lowering potential stress concentration risks, and minimizing deformation of the rear door opening caused by poor welding precision. Furthermore, the integral molding process simplifies the production process, improves production efficiency, and reduces manufacturing costs.

[0010] In an optional embodiment, the reinforcement seat includes a first reinforcement seat, a second reinforcement seat and a third reinforcement seat; the first reinforcement seat is arranged at the first connection end and is suitable for simultaneously connecting the first inner panel body and the second inner panel body; the second reinforcement seat is arranged at the second connection end and is suitable for simultaneously connecting the first inner panel body and the third inner panel body; the third reinforcement seat is arranged at the third connection end and is suitable for simultaneously connecting the second inner panel body and the third inner panel body.

[0011] Beneficial effect: The reinforcement seat includes a first reinforcement seat, a second reinforcement seat and a third reinforcement seat, which correspond to three connection ends respectively, forming a stable three-point support structure, further enhancing the overall rigidity and impact resistance of the inner panel body, ensuring the stability and safety of the vehicle body joint, and effectively extending the service life of the vehicle.

[0012] In an optional embodiment, the rib group includes a first rib and a second rib; the first rib is arranged on the first inner plate body and is suitable for simultaneously connecting the first reinforcement seat and the third reinforcement seat, and the second rib is arranged on the third inner plate body and is suitable for simultaneously connecting the second reinforcement seat and the third reinforcement seat.

[0013] Beneficial effects: By analyzing the main stress points, the first rib is set on the first inner panel body and is suitable for connecting the first reinforcement seat and the third reinforcement seat at the same time. The second rib is set on the third inner panel body and is suitable for connecting the second reinforcement seat and the third reinforcement seat at the same time. According to the transmission of force flow, a pier-type reinforcement rib that follows the change of the outer contour is formed, which significantly improves the bearing capacity and anti-deformation performance of the vehicle body joint; the pier-type reinforcement rib effectively disperses external forces, reduces local stress concentration, improves the overall structural stability, and ensures the reliability of the vehicle body joint under various working conditions. In addition, the design of the pier-type reinforcement rib also optimizes the force transmission path, reduces structural weak links, and further enhances the impact resistance of the vehicle body joint. Through precise mechanical calculations and material selection, the stability and safety of the vehicle body joint in long-term use are ensured. By adopting a reasonable mechanical layout and optimized arrangement of reinforcement ribs, a refined design of the vehicle body joint is achieved.

[0014] In an optional embodiment, the first ribs include a plurality of ribs arranged in parallel, and / or the second ribs include a plurality of ribs arranged in parallel.

[0015] Beneficial Effects: This creates a more stable support network, further dispersing external forces and enhancing the joint's overall resistance to deformation, ensuring excellent mechanical properties even under complex operating conditions. The parallel arrangement of ribs not only enhances structural rigidity but also evenly distributes stress, reducing local fatigue damage and extending the service life of the body joint.

[0016] In an optional embodiment, the vehicle body joint further includes: a reinforcing rib, the reinforcing rib being suitable for connecting the first inner panel body and the second inner panel body, and / or the reinforcing rib being suitable for connecting the first inner panel body and the third inner panel body.

[0017] Beneficial Effects: The reinforcement ribs further enhance the connection strength of the inner panel body and improve the torsional resistance of the overall structure. By optimizing the location and number of reinforcement ribs, stress distribution is effectively improved, the risk of structural deformation is reduced, and the stability and durability of the body joint are ensured under extreme working conditions.

[0018] In an optional embodiment, the reinforcing ribs are arranged crosswise with the first ribs, and / or the reinforcing ribs are arranged crosswise with the second ribs;

[0019] The vehicle body joint further includes: a first reinforcement column, the first reinforcement column being arranged at an intersection of the reinforcing rib and the first rib, and / or the first reinforcement column being arranged at an intersection of the reinforcing rib and the second rib.

[0020] Beneficial Effects: By intersecting the reinforcing ribs with the first ribs and / or the reinforcing ribs with the second ribs, a multi-dimensional support system is formed, mutually supporting each other and enhancing the joint's comprehensive mechanical properties. This effectively resists multi-directional external forces and significantly improves the joint's torsional rigidity and impact resistance. By locating the first reinforcement column at a key intersection, local load-bearing capacity is significantly increased, stress distribution is further optimized, and the overall structure's resistance to deformation and impact is enhanced, ensuring the stability and safety of the body joint under complex operating conditions.

[0021] In an optional embodiment, one of the first ribs is arranged crosswise with one of the second ribs; and a second reinforcement column is provided at the intersection, and the second reinforcement column is connected to the third reinforcement seat;

[0022] The vehicle body joint further includes a third rib adapted to connect the second reinforcement column and the third reinforcement seat.

[0023] Beneficial Effect: The synergy between the first and second ribs can be enhanced, and the bearing capacity of the intersection area can be increased. In addition, the connection between the second reinforcement column and the third reinforcement seat further strengthens the structural stability of the intersection.

[0024] In an optional embodiment, the body joint is made of magnesium alloy.

[0025] Beneficial Effects: The body joints are made of magnesium alloy, which has high specific strength and excellent corrosion resistance. This further enhances the lightweight and durability of the joints, ensuring they maintain excellent mechanical properties over long-term use. Furthermore, magnesium alloy offers greater weight reduction than aluminum alloy or steel, contributing to a reduction in overall vehicle weight, improving fuel economy and reducing energy consumption and emissions.

[0026] In an optional embodiment, the vehicle body joint is formed by integral die casting.

[0027] Beneficial Effects: The body joints are manufactured using a one-piece die-casting process, effectively avoiding deformation and precision issues caused by welding, ensuring high precision and stability of the joints. The one-piece die-casting process ensures a compact body joint structure, free of welding defects, and enhances overall strength and reliability.

[0028] In a second aspect, the present invention further provides a vehicle, comprising:

[0029] C-pillar upper side rail, rear roof rail and D-pillar; and body joints as described above;

[0030] The first connecting end of the body joint is connected to the upper side beam of the C-pillar, the second connecting end of the body joint is connected to the rear top beam, and the third connecting end of the body joint is connected to the D-pillar.

[0031] Since the vehicle includes a body joint, which has the same effect as the body joint, it will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the vehicle body frame assembly before improvement;

[0034] Figure 2 for Figure 1 Schematic diagram of the base with the D-pillar joint outer panel removed;

[0035] Figure 3 This is a schematic diagram of the disassembled state of the D-pillar connector assembly before improvement;

[0036] Figure 4 is a schematic diagram of the vehicle body frame assembly of the present invention;

[0037] Figure 5 for Figure 4 A partial enlarged view of

[0038] Figure 6 Schematic diagram of the vehicle body joint of the present invention.

[0039] Description of reference numerals:

[0040] 110, C-pillar upper side rail; 120, rear roof rail; 130, D-pillar; 140, D-pillar joint assembly; 141, D-pillar joint inner plate; 142, D-pillar joint outer plate; 143, reinforcement plate;

[0041] 2. Body joint; 21. Inner panel body; 211. First inner panel body; 212. Second inner panel body; 213. Third inner panel body; 22. Process hole;

[0042] 24, reinforcement seat; 241, first reinforcement seat; 242, second reinforcement seat; 243, third reinforcement seat;

[0043] 25, rib group; 251, first rib; 252, second rib; 253, reinforcing rib; 254, third rib; 255, first reinforcement column; 256, second reinforcement column;

[0044] 26, connecting terminal; 261, first connecting terminal; 262, second connecting terminal; 263, third connecting terminal;

[0045] 3. Connectors. DETAILED DESCRIPTION

[0046] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] Combine Figures 1 to 3 As shown, in the upper body welding assembly, the D-pillar joint assembly 140 is a three-way joint structure used to connect the C-pillar upper side beam 110, the rear top beam 120 and the D-pillar 130. The stability and strength of the D-pillar joint assembly 140 determine the torsional rigidity of the upper body. An unreasonable structure of the D-pillar joint assembly 140 can easily cause the welded assembly to be easily deformed, thereby causing local deformation of the rear door frame. In the related art, in order to improve the strength of the D-pillar joint assembly 140, a common method is to weld a reinforcement plate 143 on the D-pillar joint inner plate 141, and then further install the D-pillar joint outer plate 142 on the outside. Although this method is low in cost, due to the slow debugging time of the parts welding assembly and large fluctuations in accuracy, it is easy to lead to reduced production efficiency and low pass rate, which is not conducive to large-scale production.

[0051] The following combination Figures 4 to 6 , describing embodiments of the present invention.

[0052] According to an embodiment of the present invention, on one hand, a vehicle body joint 2 is provided, comprising:

[0053] The inner plate body 21 includes a first inner plate body 211, a second inner plate body 212, and a third inner plate body 213 arranged in a triangular shape, wherein a first end of the first inner plate body 211 is connected to a first end of the second inner plate body 212 to form a first connecting end 261, a second end of the first inner plate body 211 is connected to a first end of the third inner plate body 213 to form a second connecting end 262, and a second end of the second inner plate body 212 is connected to a second end of the third inner plate body 213 to form a third connecting end 263;

[0054] The reinforcement seat 24 is provided on at least one of the connection ends 26 of the inner plate body 21 . The connection ends 26 include a first connection end 261 , a second connection end 262 , and a third connection end 263 .

[0055] The rib group 25 is provided on the inner plate body 21 and connected to at least one of the reinforcement seats 24;

[0056] The body joint 2 is integrally formed.

[0057] In this embodiment, the body joint 2 refers to a node in the vehicle body frame structure, such as the upper and lower ends of the B-pillars. Specifically, in this embodiment, it refers to the D-pillar joint that connects the C-pillar top rail 110, the rear roof rail 120, and the D-pillar 130. The body joint 2 transmits and disperses force, and its structure influences the vehicle body's performance levels, including collision resistance, torsional stiffness, torsional modulus, and durability. Therefore, a well-designed body joint 2 can effectively improve the vehicle body's torsional stiffness and torsional modulus.

[0058] Combine Figure 5 As shown, since the body joint 2 of this embodiment is used to connect the C-pillar upper side rail 110, the rear top rail 120 and the D-pillar 130, the body joint 2 is formed with three connecting ends 26, each connecting end 26 being connected to one of the C-pillar upper side rail 110, the rear top rail 120 and the D-pillar 130.

[0059] Specifically, the body joint 2 of this embodiment is constructed as a triangular structure, and can further be arranged as an isosceles triangle with uniform mechanical distribution. The application of the stable mechanical topological structure of the triangle makes the body joint 2 more rigid.

[0060] The vehicle body joint 2 includes an inner panel body 21, which serves as the main part of the vehicle body joint 2. The inner panel body 21 includes a first inner panel body 211, a second inner panel body 212 and a third inner panel body 213 distributed in a triangular shape, wherein the first end of the first inner panel body 211 is connected to the first end of the second inner panel body 212 to form a first connecting end 261, and the first inner panel body 211 and the second inner panel body 212 form an angle; the second end of the first inner panel body 211 is connected to the first end of the third inner panel body 213 to form a second connecting end 262, and the first inner panel body 211 and the third inner panel body 213 form an angle; the second end of the second inner panel body 212 is connected to the second end of the third inner panel body 213 to form a third connecting end 263, and the second inner panel body 212 and the third inner panel body 213 form an angle. By forming an angle, a structure similar to angle steel can be formed, which plays a role in structural reinforcement, enhances the overall stability of the vehicle body joint 2, effectively disperses collision forces, improves the safety and durability of the vehicle body structure, and enhances the overall stability of the vehicle body.

[0061] The first connecting end 261 , the second connecting end 262 , and the third connecting end 263 can be connected to the C-pillar top rail 110 , the rear roof rail 120 , and the D-pillar 130 , respectively.

[0062] In order to further improve the structural strength of the inner panel body 21, a reinforcement seat 24 is provided at at least one of the connection ends 26 of the inner panel body 21. The reinforcement seat 24 not only improves the local strength of the connection end 26, but also optimizes the force transmission path through multi-point support, ensuring that the vehicle body joint 2 has good load-bearing capacity and anti-deformation performance, thereby significantly improving the safety and reliability of the entire vehicle.

[0063] In some embodiments, the reinforcement base 24 includes a first reinforcement base 241 , a second reinforcement base 242 , and a third reinforcement base 243 ;

[0064] The first reinforcement seat 241 is disposed on the first connection end 261 and is suitable for connecting the first inner plate body 211 and the second inner plate body 212 at the same time;

[0065] The second reinforcement seat 242 is disposed on the second connection end 262 and is suitable for connecting the first inner plate body 211 and the third inner plate body 213 at the same time;

[0066] The third reinforcement seat 243 is disposed on the third connection end 263 and is suitable for connecting the second inner panel body 212 and the third inner panel body 213 at the same time.

[0067] In this embodiment, the reinforcement seat 24 includes a first reinforcement seat 241, a second reinforcement seat 242 and a third reinforcement seat 243, which correspond to the three connecting ends 26 respectively, forming a stable three-point support structure, further enhancing the overall rigidity and impact resistance of the inner panel body 21, ensuring the stability and safety of the vehicle body joint 2, and effectively extending the service life of the vehicle.

[0068] Furthermore, the body joint 2 includes a rib assembly 25, which is positioned within the inner panel body 21 and connected to at least one of the reinforcement seats 24. The rib assembly 25 is composed of multiple transverse and longitudinal ribs distributed across the surface of the inner panel body 21. These ribs enhance localized deformation resistance, improve overall structural strength, and ensure the stability and durability of the body joint 2 under complex operating conditions, further optimizing vehicle safety. The rational arrangement of the rib assembly 25 fully considers mechanical distribution, effectively distributing external forces and reducing stress concentration, further enhancing the fatigue resistance of the body joint 2 and ensuring structural stability under long-term use. The meticulous design of the rib assembly 25 not only increases the rigidity of the inner panel body 21 but also optimizes stress distribution, reducing structural fatigue and extending the service life of the body joint 2. Furthermore, the transverse and longitudinal ribs of the rib assembly 25 intertwine to form a grid-like structure, enhancing the overall toughness of the inner panel body 21 and effectively resisting multi-directional impact forces. This grid-like structure effectively absorbs impact energy, improving the vehicle's collision resistance and enhancing safety.

[0069] The vehicle body joint 2 provided in the embodiments of the present invention utilizes three connecting terminals 26 formed by the inner panel body 21. Combined with the multiple reinforcement provided by the reinforcing seat 24 and rib assembly 25, this achieves efficient load-bearing and deformation resistance, increasing the torsional rigidity and skeletal stability of the vehicle body joint 2, thereby reducing deformation of the rear door opening and improving the torsional rigidity of the vehicle body. Furthermore, the vehicle body joint 2 is integrally molded, reducing weld points during the manufacturing process, lowering potential stress concentration risks and minimizing rear door opening deformation caused by poor welding precision. Furthermore, the integral molding process simplifies the production process, improves manufacturing efficiency, reduces precision fluctuations, ensures the consistency of the vehicle body joint 2, and achieves a high product qualification rate, thereby reducing manufacturing costs.

[0070] In some embodiments, combined Figure 6 As shown, the rib group 25 includes a first rib 251 and a second rib 252; the first rib 251 is arranged on the first inner plate body 211 and is suitable for simultaneously connecting the first reinforcement seat 241 and the third reinforcement seat 243, and the second rib 252 is arranged on the third inner plate body 213 and is suitable for simultaneously connecting the second reinforcement seat 242 and the third reinforcement seat 243.

[0071] By analyzing the primary stress points, a first rib 251 is positioned on the first inner panel body 211, connecting the first reinforcement seat 241 and the third reinforcement seat 243. A second rib 252 is positioned on the third inner panel body 213, connecting the second reinforcement seat 242 and the third reinforcement seat 243. Based on the force flow, these ribs form a bridge-shaped reinforcement that follows the outer contour, significantly improving the load-bearing capacity and deformation resistance of the vehicle body joint 2. The bridge-shaped reinforcement effectively disperses external forces, reduces local stress concentration, enhances overall structural stability, and ensures the reliability of the vehicle body joint 2 under various operating conditions. Furthermore, the design of the bridge-shaped reinforcement optimizes the force transmission path, reduces structural weaknesses, and further enhances the impact resistance of the vehicle body joint. Through precise mechanical calculations and material selection, the stability and safety of the vehicle body joint are ensured during long-term use. By adopting a reasonable mechanical layout and optimized rib arrangement, the refined design of the vehicle body joint 2 is achieved.

[0072] In some embodiments, the first ribs 251 include a plurality of ribs arranged in parallel, and / or the second ribs 252 include a plurality of ribs arranged in parallel.

[0073] Combine Figure 6As shown, first ribs 251 comprise two parallel ribs, and second ribs 252 also comprise two parallel ribs. This creates a more stable support network, further dispersing external forces and enhancing the joint's overall resistance to deformation, ensuring excellent mechanical properties even under complex operating conditions. The parallel arrangement of ribs not only enhances structural rigidity but also evenly distributes stress, reducing local fatigue damage and extending the service life of the body joint 2.

[0074] In some embodiments, the vehicle body joint 2 further comprises: a reinforcing rib 253 , which is adapted to connect the first inner panel body 211 and the second inner panel body 212 , and / or the reinforcing rib 253 is adapted to connect the first inner panel body 211 and the third inner panel body 213 .

[0075] The provision of reinforcing ribs 253 further enhances the connection strength of the inner panel body 21 and improves the torsional resistance of the overall structure. By optimizing the location and number of reinforcing ribs 253, stress distribution is effectively improved, the risk of structural deformation is reduced, and the stability and durability of the body joint 2 are ensured under extreme operating conditions.

[0076] In some embodiments, the reinforcing ribs 253 are arranged crosswise with the first ribs 251 , and / or the reinforcing ribs 253 are arranged crosswise with the second ribs 252 ;

[0077] The vehicle body joint 2 further includes a first reinforcement column 255 , which is disposed at the intersection of the reinforcing rib 253 and the first rib 251 , and / or at the intersection of the reinforcing rib 253 and the second rib 252 .

[0078] By cross-setting the reinforcing ribs 253 and the first ribs 251, and / or cross-setting the reinforcing ribs 253 and the second ribs 252, a multi-dimensional support system is formed, which supports each other, enhances the comprehensive mechanical properties of the joint, effectively resists multi-directional external force impacts, and significantly improves the torsional rigidity and impact resistance of the body joint 2.

[0079] Furthermore, by placing the first reinforcement column 255 at a critical intersection, local load-bearing capacity is significantly improved, stress distribution is further optimized, and the overall structure's resistance to deformation and impact is enhanced, ensuring the stability and safety of the vehicle body joint 2 under complex operating conditions. The precise geometry and dimensions of the first reinforcement column 255 ensure structural integrity even under maximum load, effectively preventing localized failures caused by stress concentration.

[0080] In some embodiments, one of the first ribs 251 is intersected with one of the second ribs 252 ; and a second reinforcement column 256 is provided at the intersection, and the second reinforcement column 256 is connected to the third reinforcement seat 243 ;

[0081] The vehicle body joint 2 further includes a third rib 254 , which is adapted to connect the second reinforcement column 256 and the third reinforcement seat 243 .

[0082] When one of the first ribs 251 intersects one of the second ribs 252, and a second reinforcement column 256 is positioned at the intersection, the synergistic effect between the first and second ribs 251, 252 is enhanced, increasing the load-bearing capacity of the intersection. Furthermore, the connection between the second reinforcement column 256 and the third reinforcement seat 243 further strengthens the structural stability of the intersection.

[0083] In addition, the addition of the third rib 254 further strengthens the structural stability of the intersection, effectively disperses the concentrated stress, and improves the deformation resistance of the overall joint.

[0084] In some embodiments, the body joint 2 is made of magnesium alloy.

[0085] Body joint 2 is constructed from magnesium alloy, which boasts high specific strength and excellent corrosion resistance. This further enhances its lightweight and durability, ensuring it maintains excellent mechanical properties over long-term use. Furthermore, magnesium alloy offers greater weight reduction than aluminum alloy or steel, contributing to a reduction in vehicle weight, improving fuel economy, and reducing energy consumption and emissions.

[0086] In some embodiments, the vehicle body joint 2 is formed by integral die casting.

[0087] To address the drawbacks of welded assemblies, which are prone to deformation and large precision fluctuations, the body joint 2 of this embodiment utilizes an integrated die-casting process. This effectively avoids deformation and precision issues caused by welding, ensuring the high precision and stability of the body joint 2. This integrated die-casting process ensures a compact structure and the absence of welding defects, enhancing overall strength and reliability.

[0088] Furthermore, the combination of magnesium alloy material and die-casting process further optimizes the mechanical properties of the vehicle body joint 2, prolongs its service life, and enhances the safety and stability of the vehicle.

[0089] Furthermore, the body joint 2 of this embodiment utilizes one-piece die-casting, integrating only the joint area and excluding components such as the C-pillar inner panel. This avoids the need for numerous integrated parts, which could lead to inadequate reinforcement of key stress points. This also prevents excessive size and the resulting high mold, tooling, and unit costs, enabling component miniaturization and saving on mold and tooling costs. This design ensures the strength of key areas while facilitating miniaturization and refined design, optimizing the production process, reducing manufacturing costs, and improving overall economic efficiency.

[0090] The vehicle body joint 2 of this embodiment further includes a process hole 22 . The process hole 22 can reduce weight on the one hand and facilitate assembly and testing during the production process on the other hand, ensuring accurate docking of components.

[0091] According to another aspect of an embodiment of the present invention, a vehicle is provided, comprising:

[0092] The C-pillar upper side member 110, the rear top member 120 and the D-pillar 130; and the vehicle body joint 2 as described above;

[0093] The first connecting end 261 of the body joint 2 is connected to the C-pillar top rail 110, the second connecting end 262 of the body joint 2 is connected to the rear roof rail 120, and the third connecting end 263 of the body joint 2 is connected to the D-pillar 130. These connections can be achieved using connecting members 3 such as bolts and rivets, ensuring a secure and reliable connection, thereby improving the overall rigidity and safety of the vehicle.

[0094] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present invention.

Claims

1. A vehicle body joint, characterized in that: include: An inner plate body (21) comprises a first inner plate body (211), a second inner plate body (212) and a third inner plate body (213) distributed in a triangular pattern, wherein the first end of the first inner plate body (211) is connected to the first end of the second inner plate body (212) to form a first connecting end (261), the second end of the first inner plate body (211) is connected to the first end of the third inner plate body (213) to form a second connecting end (262), and the second end of the second inner plate body (212) is connected to the second end of the third inner plate body (213) to form a third connecting end (263); A reinforcing seat (24) is provided on at least one of the connecting ends (26) of the inner plate body (21), wherein the connecting end (26) includes the first connecting end (261), the second connecting end (262) and the third connecting end (263); A rib group (25) is provided on the inner plate body (21) and connected to at least one of the reinforcement seats (24); The vehicle body joint is integrally formed.

2. The vehicle body joint according to claim 1, wherein: The reinforcement seat (24) includes a first reinforcement seat (241), a second reinforcement seat (242) and a third reinforcement seat (243); The first reinforcement seat (241) is arranged on the first connection end (261) and is suitable for simultaneously connecting the first inner plate body (211) and the second inner plate body (212); The second reinforcement seat (242) is arranged on the second connection end (262) and is suitable for simultaneously connecting the first inner plate body (211) and the third inner plate body (213); The third reinforcing seat (243) is arranged on the third connecting end (263) and is suitable for simultaneously connecting the second inner plate body (212) and the third inner plate body (213).

3. The vehicle body joint according to claim 2, wherein: The rib group (25) includes a first rib (251) and a second rib (252); the first rib (251) is arranged on the first inner plate body (211) and is suitable for simultaneously connecting the first reinforcement seat (241) and the third reinforcement seat (243); the second rib (252) is arranged on the third inner plate body (213) and is suitable for simultaneously connecting the second reinforcement seat (242) and the third reinforcement seat (243).

4. The vehicle body joint according to claim 3, characterized in that: The first ribs (251) include a plurality of ribs arranged in parallel, and / or the second ribs (252) include a plurality of ribs arranged in parallel.

5. The vehicle body joint according to claim 3, wherein: The vehicle body joint further includes: a reinforcing rib (253), wherein the reinforcing rib (253) is suitable for connecting the first inner panel body (211) and the second inner panel body (212), and / or the reinforcing rib (253) is suitable for connecting the first inner panel body (211) and the third inner panel body (213).

6. The vehicle body joint according to claim 5, characterized in that: The reinforcing ribs (253) and the first ribs (251) are arranged crosswise, and / or the reinforcing ribs (253) and the second ribs (252) are arranged crosswise; The vehicle body joint further comprises: a first reinforcing column (255), the first reinforcing column (255) being arranged at the intersection of the reinforcing rib (253) and the first rib (251), and / or the first reinforcing column (255) being arranged at the intersection of the reinforcing rib (253) and the second rib (252).

7. The vehicle body joint according to claim 4, wherein: One of the first ribs (251) and one of the second ribs (252) are arranged crosswise; a second reinforcement column (256) is provided at the crosswise position, and the second reinforcement column (256) is connected to the third reinforcement seat (243); The vehicle body joint further comprises a third rib (254), wherein the third rib (254) is suitable for connecting the second reinforcement column (256) and the third reinforcement seat (243).

8. The vehicle body joint according to any one of claims 1 to 7, characterized in that: The body joint is made of magnesium alloy.

9. The vehicle body joint according to any one of claims 1 to 7, characterized in that: The vehicle body joint is formed by integral die casting.

10. A vehicle, characterized in that: include: A C-pillar upper side beam (110), a rear top beam (120) and a D-pillar (130); and a vehicle body joint as claimed in any one of claims 1 to 9 above; The first connecting end (261) of the vehicle body joint is connected to the C-pillar upper side beam (110), the second connecting end (262) of the vehicle body joint is connected to the rear top beam (120), and the third connecting end (263) of the vehicle body joint is connected to the D-pillar (130).

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