A vehicle body pillar, vehicle body and vehicle

Abstract

The embodiment of the application provides a vehicle body pillar, a vehicle body and a vehicle, the vehicle body pillar comprises a pillar reinforcing plate and a lower hinge reinforcing plate, the pillar reinforcing plate comprises a first sub-plate and a second sub-plate, the first sub-plate extends in the up-down direction, and the lower end of the first sub-plate is connected with the second sub-plate; the lower hinge reinforcing plate is arranged at the lower end of the first sub-plate and extends to the second sub-plate, and the lower hinge reinforcing plate is located at the inner side of the first sub-plate and the second sub-plate and is connected with the first sub-plate and the second sub-plate. According to the vehicle body pillar, the lower end of the pillar reinforcing plate can be prevented from being torn in the process of wall intrusion, and the collision force can be dispersed in multiple paths, so that the transverse intrusion amount of the vehicle body pillar to the passenger cabin is reduced in the side collision, the safety of passengers is protected, and the collision safety of the vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a vehicle body pillar, vehicle body, and vehicle. Background Technology

[0002] In related technologies, the pillar reinforcement plate is generally made of hot-formed steel and hot-stamped, which has high strength but low elongation. During a side collision, the lower end of the pillar reinforcement plate is easily torn open and enters the vehicle during the barrier intrusion process, causing the body pillar to easily intrude laterally into the passenger compartment, threatening passenger safety. Utility Model Content

[0003] This application provides a vehicle body pillar, which aims to improve the problem of large intrusion of the vehicle body pillar during a side collision.

[0004] This application also proposes a vehicle body that includes the aforementioned vehicle pillars.

[0005] This application also proposes a vehicle comprising the aforementioned body.

[0006] According to an embodiment of this application, a vehicle body pillar includes: a pillar reinforcement plate and a lower hinge reinforcement plate. The pillar reinforcement plate includes a first sub-plate and a second sub-plate. The first sub-plate extends in a vertical direction, and the lower end of the first sub-plate is connected to the second sub-plate. The lower hinge reinforcement plate is disposed at the lower end of the first sub-plate and extends to the second sub-plate. The lower hinge reinforcement plate is located inside the first sub-plate and the second sub-plate and is connected to the first sub-plate and the second sub-plate.

[0007] According to the embodiments of this application, the vehicle body pillar is divided into a first sub-plate and a second sub-plate. The lower end of the first sub-plate is connected to the second sub-plate. A lower hinge reinforcement plate is disposed at the lower end of the first sub-plate and extends to the second sub-plate. The lower hinge reinforcement plate is located inside the first and second sub-plates and is connected to them. This enhances the connection stability between the lower hinge reinforcement plate and the pillar reinforcement plate, thereby increasing the structural strength and bending strength of the lower end of the pillar reinforcement plate and preventing the lower end of the pillar reinforcement plate from tearing open and intruding into the vehicle interior during barrier intrusion. It can also disperse collision forces through multiple paths, thereby reducing the lateral intrusion of the vehicle body pillar into the passenger compartment during side collisions, protecting passenger safety, and improving vehicle collision safety.

[0008] In addition, the vehicle body pillar according to this application may also have the following additional technical features: In some embodiments of this application, the lower end of the lower hinge reinforcement plate is located between the second sub-plate and the vehicle sill, and the lower hinge reinforcement plate is connected to the sill.

[0009] In this application, the connection between the lower hinge reinforcement plate and the sill can disperse the collision force through multiple paths. In a side collision, the impact force will be transmitted to the lower hinge through the door. The connection between the lower hinge reinforcement plate and the sill can guide part of the impact force to the sill and the floor longitudinal beam, avoiding the pillar reinforcement plate bearing the entire load alone. It also prevents the lower end of the pillar reinforcement plate from tearing open and intruding into the vehicle during barrier intrusion, further reducing the lateral intrusion of the vehicle pillar into the passenger compartment, thereby protecting passenger safety and improving the vehicle's collision safety.

[0010] In some embodiments of this utility model, the lower hinge reinforcing plate is welded to the first sub-plate and the second sub-plate, and structural adhesive is provided between the lower hinge reinforcing plate and the first sub-plate and the second sub-plate; and / or, the second sub-plate, the lower hinge reinforcing plate and the threshold are connected by fasteners.

[0011] In this application, welding and the application of structural adhesive can enhance the connection stiffness and strength between the pillar reinforcement plate and the lower hinge reinforcement plate. The pillar reinforcement plate, the lower hinge reinforcement plate, and the sill are connected together by fasteners, which further enhances the connection stability of the pillar reinforcement plate, the lower hinge reinforcement plate, and the sill. In a side collision, this prevents the lower end of the pillar reinforcement plate from tearing open and intruding into the vehicle interior during barrier intrusion, further reducing the lateral intrusion of the vehicle pillars into the passenger compartment, thus protecting passenger safety and improving the vehicle's collision safety.

[0012] In some embodiments of this application, at least one of the first sub-plate and the second sub-plate is provided with a soft area, the tensile strength of the soft area is greater than the tensile strength of the column reinforcing plate in other areas outside the soft area, there are multiple soft areas, and at least a portion of the soft areas are welded to the inner plate of the column and the door sill of the vehicle.

[0013] In this application, the increased tensile strength of the soft zone can effectively enhance the elongation at the welded connection between the soft zone and the inner panel of the pillar and the vehicle sill, preventing the weld from tearing open. This can prevent the pillar reinforcement plate from tearing open and intruding into the vehicle during barrier intrusion, further reducing the lateral intrusion of the body pillar into the passenger compartment, thus protecting passenger safety and improving the vehicle's collision safety.

[0014] In some embodiments of this application, the vehicle body pillar further includes a pillar inner plate, which is connected to the pillar reinforcing plate. The pillar inner plate includes a first plate and a second plate, which are connected to the second plate. The first plate is located above the second plate, and the thickness of the first plate is less than the thickness of the second plate.

[0015] In this application, by connecting a thinner first plate and a thicker second plate to form the inner panel of the pillar, with the first plate positioned above the second plate, the bending strength of the vehicle pillar can be improved. This reduces the lateral intrusion of the pillar into the passenger compartment during a side collision, thereby protecting passenger safety and improving vehicle collision safety. While meeting stiffness requirements, the inner panel of the pillar can also be made lightweight, achieving weight reduction and effectively lowering the cost of the vehicle pillar and the vehicle itself.

[0016] In some embodiments of this application, the lower end of the second plate is welded to the lower body and connected by fasteners.

[0017] In this application, based on the welding connection between the second plate and the lower vehicle body, a fastener connection is added to the lower end of the second plate to connect with the lower vehicle body. In the event of a side collision, the inner panel of the pillar can be prevented from tearing open and intruding into the vehicle during the barrier intrusion process, further reducing the lateral intrusion of the vehicle pillar into the passenger compartment, so as to protect passenger safety and thus better improve the collision safety of the vehicle.

[0018] In some embodiments of this application, the second plate has a notch that penetrates the second plate along its thickness direction, and the edge of the notch is provided with a flange that extends along the circumferential direction of the notch, and the width of the flange is 4mm-6mm.

[0019] In this application, the flange effectively improves the structural strength and bending strength of the second plate at the notch, thereby reducing the lateral intrusion of the vehicle pillars into the passenger compartment during a side collision, protecting passenger safety and improving vehicle collision safety. Furthermore, the increased width of the flange further enhances the structural strength and bending strength of the second plate at the notch, thus further improving vehicle collision safety.

[0020] In some embodiments of this application, the column reinforcing plate is provided with shrinkage ribs, which extend along the width direction of the column reinforcing plate, and there are multiple shrinkage ribs spaced apart in the vertical direction.

[0021] In this application, the crumple ribs preferentially undergo plastic deformation upon impact, guiding the pillar reinforcement plate to fold at specific locations. Through orderly crumple, the impact kinetic energy is converted into deformation energy, rather than being directly transferred to the passenger compartment, effectively absorbing impact energy, reducing the impact on passengers, and thus improving vehicle collision safety. Multiple crumple ribs can achieve multi-stage bending energy absorption in the pillar reinforcement plate, thereby better absorbing impact energy and further improving vehicle collision safety.

[0022] This application also provides a vehicle body having the vehicle pillars described in the above embodiments.

[0023] The vehicle body according to an embodiment of this application includes a door sill and the aforementioned vehicle pillars, wherein the second sub-plate is connected to the door sill.

[0024] According to the vehicle body of this application embodiment, by dividing the pillar reinforcement plate into a first sub-plate and a second sub-plate, with the lower end of the first sub-plate connected to the second sub-plate, and a lower hinge reinforcement plate disposed at the lower end of the first sub-plate and extending to the second sub-plate, the lower hinge reinforcement plate is located inside the first and second sub-plates and connected to them. This enhances the connection stability between the lower hinge reinforcement plate and the pillar reinforcement plate, thereby increasing the structural strength and bending strength of the lower end of the pillar reinforcement plate and preventing the lower end of the pillar reinforcement plate from tearing open and intruding into the vehicle interior during barrier intrusion. It can also disperse collision forces through multiple paths, thereby reducing the lateral intrusion of the vehicle pillars into the passenger compartment during side collisions, protecting passenger safety, and improving vehicle collision safety.

[0025] This application also provides a vehicle having the body of the above-described embodiments.

[0026] According to the vehicle embodiment of this application, by dividing the pillar reinforcement plate into a first sub-plate and a second sub-plate, with the lower end of the first sub-plate connected to the second sub-plate, and a lower hinge reinforcement plate disposed at the lower end of the first sub-plate and extending to the second sub-plate, the lower hinge reinforcement plate is located inside the first and second sub-plates and connected to them. This enhances the connection stability between the lower hinge reinforcement plate and the pillar reinforcement plate, thereby increasing the structural strength and bending strength of the lower end of the pillar reinforcement plate and preventing the lower end of the pillar reinforcement plate from tearing open and intruding into the vehicle interior during barrier intrusion. It can also disperse collision forces through multiple paths, thereby reducing the lateral intrusion of the vehicle pillars into the passenger compartment during side collisions, protecting passenger safety, and improving vehicle collision safety. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the inner plate of the vehicle body pillar provided in one embodiment of this application; Figure 2 This is a schematic diagram of the connection between the inner plate of the vehicle body pillar and the lower body according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the pillar reinforcement plate of the vehicle body pillar provided in one embodiment of this application; Figure 4 This is a schematic diagram of the connection between the pillar reinforcement plate and the door sill of a vehicle body pillar according to an embodiment of this application; Figure 5 This is a cross-sectional schematic diagram of the pillar reinforcement plate of the vehicle body pillar provided in one embodiment of this application; Figure 6This is a schematic diagram of the structure of the lower hinge reinforcement plate of the vehicle body pillar provided in one embodiment of this application.

[0028] Explanation of reference numerals in the attached figures: 1. Column reinforcement plate; 11. Soft zone; 12. Transition zone; 13. Contraction rib; 14. First sub-plate; 15. Second sub-plate; 16. First hole; 2. Inner plate of the column; 21. First plate; 22. Second plate; 221. Connecting part; 222. Mounting hole; 23. Notch; 24. Flanged edge; 3. Lower hinge reinforcement plate; 31. Second hole; 4. Lower body; 41. Assembly hole; 5. Threshold. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The following is for reference. Figures 1-6 Description of vehicle body pillars according to embodiments of the present utility model.

[0034] like Figure 3 , Figure 4 and Figure 6 As shown, the vehicle body pillar according to an embodiment of the present utility model includes a pillar reinforcement plate 1 and a lower hinge reinforcement plate 3.

[0035] Specifically, the column reinforcing plate 1 includes a first sub-plate 14 and a second sub-plate 15. The first sub-plate 14 extends in the vertical direction and its lower end is connected to the second sub-plate 15. The lower hinge reinforcing plate 3 is located at the lower end of the first sub-plate 14 and extends to the second sub-plate 15. The lower hinge reinforcing plate 3 is located inside the first sub-plate 14 and the second sub-plate 15 and is connected to the first sub-plate 14 and the second sub-plate 15.

[0036] The vehicle body pillar can be used in the vehicle. The upper and lower ends of the pillar reinforcement plate 1 are connected to the vehicle roof side beam and the door sill 5, respectively. The door sill 5 can be an aluminum door sill 5. The lower hinge reinforcement plate 3 is connected to the lower part of the pillar reinforcement plate 1 and to the lower hinge of the door to enhance the structural strength at the connection with the lower hinge of the door and withstand the load of repeated opening and closing of the door.

[0037] The second sub-plate 15 extends along the front-rear direction of the vehicle and is adapted to connect with the vehicle sill 5. The lower hinge reinforcement plate 3 is located inside the first sub-plate 14 and connected to the first sub-plate 14. At the same time, the lower hinge reinforcement plate 3 extends downward to overlap with the second sub-plate 15, that is, the lower end of the lower hinge reinforcement plate 3 extends between the second plate 22 and the sill 5. This can enhance the connection stability between the lower hinge reinforcement plate 3 and the pillar reinforcement plate 1, thereby enhancing the structural strength and bending strength of the lower end of the pillar reinforcement plate 1 and preventing the lower end of the pillar reinforcement plate 1 from tearing open and intruding into the vehicle during barrier intrusion. It can also disperse the collision force through multiple paths, thereby reducing the lateral intrusion of the vehicle body pillar into the passenger compartment during side collisions, protecting passenger safety and improving the vehicle's collision safety.

[0038] According to the embodiment of this utility model, the vehicle body pillar is divided into a first sub-plate 14 and a second sub-plate 15. The lower end of the first sub-plate 14 is connected to the second sub-plate 15. A lower hinge reinforcement plate 3 is disposed at the lower end of the first sub-plate 14 and extends to the second sub-plate 15. The lower hinge reinforcement plate 3 is located inside the first sub-plate 14 and the second sub-plate 15 and is connected to the first sub-plate 14 and the second sub-plate 15. This enhances the connection stability between the lower hinge reinforcement plate 3 and the pillar reinforcement plate 1, thereby enhancing the structural strength and bending strength of the lower end of the pillar reinforcement plate 1 and preventing the lower end of the pillar reinforcement plate 1 from tearing open and intruding into the vehicle interior during barrier intrusion. It can also disperse collision forces through multiple paths, thereby reducing the lateral intrusion of the vehicle body pillar into the passenger compartment during side collisions, protecting passenger safety, and improving vehicle collision safety.

[0039] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the lower end of the lower hinge reinforcement plate 3 is located between the second sub-plate 15 and the vehicle sill 5, and the lower hinge reinforcement plate 3 is connected to the sill 5. This enhances the connection stability between the lower hinge reinforcement plate 3 and the pillar reinforcement plate 1, and also disperses the collision force through multiple paths. In a side collision, the impact force will be transmitted to the lower hinge through the door, and the connection between the lower hinge reinforcement plate 3 and the sill 5 can guide part of the impact force to the sill 5 and the floor longitudinal beam, preventing the pillar reinforcement plate 1 from bearing the entire load alone, and preventing the lower end of the pillar reinforcement plate 1 from tearing open and intruding into the vehicle during barrier intrusion. This further reduces the lateral intrusion of the vehicle body pillar into the passenger compartment, thereby protecting passenger safety and improving the vehicle's collision safety.

[0040] In some embodiments of this utility model, such as Figure 1 and Figure 3 As shown, the vehicle body pillar also includes a pillar inner plate. The pillar inner plate 2 is connected to the pillar reinforcing plate 1. The pillar inner plate 2 includes a first plate 21 and a second plate 22. The first plate 21 is connected to the second plate 22. The first plate 21 is located above the second plate 22. The thickness of the first plate 21 is less than the thickness of the second plate 22.

[0041] The upper and lower ends of the pillar reinforcement plate 1 are connected to the vehicle roof side beam and the sill 5, respectively. The sill 5 can be an aluminum sill 5. The pillar inner plate 2 is located inside the pillar reinforcement plate 1. The pillar reinforcement plate 1 and the pillar inner plate 2 can be connected by spot welding or laser welding to form a closed section, which can enhance the overall bending and torsional resistance of the vehicle body pillar.

[0042] The existing column reinforcing plate 1 is generally made of hot-formed steel by hot stamping, which has high strength but low elongation, while the existing column inner plate 2 is generally made of cold-stamped steel plate, which has lower strength.

[0043] In this application, the inner plate 2 of the column is formed by connecting a first plate 21 with a smaller thickness and a second plate 22 with a larger thickness. The first plate 21 is located above the second plate 22, which increases the material thickness at the lower end of the inner plate 2 of the column and reduces the material thickness at the upper end of the inner plate 2 of the column.

[0044] Increasing the thickness of the second plate 22 locally can effectively improve the structural strength of the inner plate 2 of the pillar, achieving localized reinforcement. Located lower, the second plate 22 is closer to the vehicle's sill 5 and forms the main force transmission path during a side collision, requiring it to withstand greater impact force and bending moment. Therefore, increasing the thickness of the second plate 22 can improve the bending strength of the vehicle pillar, thereby reducing the lateral intrusion of the pillar into the passenger compartment during a side collision, protecting passenger safety, and improving the vehicle's collision safety.

[0045] The first plate 21, located at the top, mainly bears the roof load and local deformation during side collisions, and needs to have a certain degree of flexibility to absorb energy. Locally thinning the thickness of the first plate 21 can achieve weight reduction of the inner plate 2 of the pillar while meeting the rigidity requirements, thus effectively reducing the cost of the vehicle pillar and improving the vehicle's economy.

[0046] According to the embodiment of this utility model, the vehicle body pillar is constructed by connecting a thinner first plate 21 and a thicker second plate 22 to form the inner panel 2, with the first plate 21 positioned above the second plate 22. This improves the bending strength of the vehicle body pillar, thereby reducing the lateral intrusion of the pillar into the passenger compartment during a side collision, thus protecting passenger safety and improving vehicle collision safety. While meeting rigidity requirements, the inner panel 2 is also made lightweight, achieving weight reduction and effectively lowering the cost of the vehicle body pillar and the vehicle itself.

[0047] In some embodiments of this utility model, the first plate 21 and the second plate 22 are welded together. For example, the first plate 21 and the second plate 22 can be connected by laser welding. Welding can achieve seamless connection of the first plate 21 and the second plate 22 with different thicknesses, avoid stress concentration, maintain structural continuity, enhance the connection strength and connection stability of the first plate 21 and the second plate 22, thereby ensuring the structural strength of the inner plate 2 of the column.

[0048] In some embodiments of this utility model, the thickness of the first plate 21 is 1.0mm-1.2mm. If the thickness of the first plate 21 is too small, the structural strength of the inner plate 2 of the pillar will be reduced; if the thickness of the first plate 21 is too large, the ductility of the inner plate 2 of the pillar will be reduced and the weight will be increased. Therefore, the thickness of the first plate 21 is set at 1.0mm-1.2mm. While ensuring the structural strength of the inner plate 2 of the pillar, the inner plate 2 can be made lightweight, achieving a weight reduction effect, and effectively reducing the cost of the vehicle body pillar and the vehicle itself. The thickness of the first plate 21 can be 1.0mm, 1.1mm, or 1.2mm; this application does not specifically limit the thickness of the first plate 21.

[0049] In some embodiments of this utility model, the thickness of the second plate 22 is 1.4mm-1.6mm. If the thickness of the second plate 22 is too small, the bending strength of the inner plate 2 of the pillar will be reduced, resulting in excessive lateral intrusion of the vehicle pillar into the passenger compartment when subjected to a side impact; if the thickness of the second plate 22 is too large, the weight and cost of the vehicle pillar will be too high. Therefore, the thickness of the second plate 22 is set at 1.4mm-1.6mm, which can enhance the bending strength of the inner plate 2 of the pillar, thereby reducing the lateral intrusion of the vehicle pillar into the passenger compartment to protect passenger safety and improve vehicle collision safety, while also avoiding excessive weight and cost of the vehicle pillar. The thickness of the second plate 22 can be 1.4mm, 1.5mm, or 1.6mm; this application does not specifically limit the thickness of the second plate 22.

[0050] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the lower end of the second plate 22 is welded to the lower body 4 and connected by fasteners. Specifically, the lower end of the second plate 22 is provided with a connecting part 221, which has a mounting hole 222. The lower body 4 is provided with an assembly hole 41 corresponding to the mounting hole 222. Fasteners are adapted to pass through the mounting hole 222 and the assembly hole 41 in sequence, so that the connecting part 221 and the lower body 4 are connected, thereby realizing the fastener connection between the lower end of the second plate 22 and the lower body 4.

[0051] Based on the welding connection between the second plate 22 and the lower body 4, a fastener connection is added to the lower end of the second plate 22 to the lower body 4. In the event of a side collision, the inner plate 2 of the pillar can be prevented from tearing open and intruding into the vehicle during the barrier intrusion process, further reducing the lateral intrusion of the body pillar into the passenger compartment, so as to protect passenger safety and thus better improve the collision safety of the vehicle.

[0052] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the second plate 22 has a notch 23 that penetrates the second plate 22 along its thickness direction. The edge of the notch 23 has a flange 24 that extends circumferentially along the notch 23. The notch 23 is used to avoid the seatbelt retractor inside the vehicle, which can optimize the space layout inside the vehicle and improve space utilization. The flange 24 extending circumferentially along the edge of the notch 23 can effectively improve the structural strength and bending strength of the second plate 22 at the notch 23, thereby reducing the lateral intrusion of the vehicle's pillars into the passenger compartment during a side collision, protecting passenger safety and improving the vehicle's collision safety.

[0053] In some embodiments of this utility model, the width of the flange 24 is 4mm-6mm. Existing flanges 24 are approximately 2mm wide. This application increases the width of the flange 24, further enhancing the structural strength and bending resistance of the second plate 22 at the notch 23, thereby improving vehicle collision safety. However, the width of the flange 24 cannot be too large, otherwise it will increase the space occupied and weight of the inner column plate 2. The width of the flange 24 can be 4mm, 5mm, or 6mm; this application does not specifically limit the width of the flange 24.

[0054] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the column reinforcing plate 1 is provided with a soft area 11. Specifically, at least one of the first sub-plate 14 and the second sub-plate 15 is provided with a soft area 11. The tensile strength of the soft area 11 is greater than the tensile strength of other areas of the column reinforcing plate 1 outside the soft area 11. There are multiple soft areas 11, and at least some of the soft areas 11 are welded to the inner plate 2 of the column and the sill 5 of the vehicle.

[0055] The existing pillar reinforcement plate 1 is made of 1500MPa hot-formed steel by hot stamping, which can achieve ultra-high strength. However, the pillar reinforcement plate 1 has low elongation and is prone to brittle tearing at the weld or connection point during a collision, rather than progressive deformation. This can lead to excessive lateral intrusion of the vehicle body pillar into the passenger compartment, posing a threat to passenger safety.

[0056] In this application, the location of weld tearing on the column reinforcing plate 1 can be identified through simulation. Laser soft zone 11 technology is then used to laser-process the weld tearing location, thereby forming the soft zone 11. Laser processing preserves the original microstructure of austenite, pearlite, and ferrite, effectively improving the tensile strength of the soft zone 11. The soft zone 11 is surrounded by a transition zone 12, which is the area affected by the laser processing of the soft zone 11.

[0057] The soft zone 11 consists of multiple welded joints on the pillar reinforcement plate 1. The increased tensile strength of the soft zone 11 effectively enhances the elongation of the welded joints between the soft zone 11 and the inner pillar plate 2 and the vehicle sill 5, preventing the welds from tearing apart. This prevents the pillar reinforcement plate 1 from tearing apart and intruding into the vehicle during barrier intrusion, further reducing the lateral intrusion of the vehicle pillars into the passenger compartment, thus protecting passenger safety and improving the vehicle's collision safety.

[0058] In some embodiments of this utility model, such as Figures 3-5 As shown, the pillar reinforcement plate 1 is provided with crumple ribs 13, which extend along the width direction of the pillar reinforcement plate 1. Multiple crumple ribs 13 are spaced apart in the vertical direction. The crumple ribs 13 are formed as grooves or protrusions on the pillar reinforcement plate 1. During a collision, the crumple ribs 13 preferentially undergo plastic deformation, guiding the pillar reinforcement plate 1 to fold at specific positions. Through orderly crumple, the collision kinetic energy is converted into deformation energy, rather than being directly transferred to the passenger compartment. This effectively absorbs collision energy, reduces the impact on passengers, and thus improves the vehicle's collision safety.

[0059] Furthermore, the collapse ribs 13 are multiple and spaced apart along the vertical direction, which can realize multi-level bending energy absorption of the column reinforcement plate 1, thereby better absorbing collision energy and further improving the collision safety of the vehicle.

[0060] like Figure 5 As shown in the example, the column reinforcing plate 1 is provided with two contraction ribs 13. The different depths and widths of the contraction ribs 13 achieve secondary bending energy absorption, reducing the amount of intrusion. One contraction rib 13 has a width of 18mm-22mm and a depth of 6mm-8mm, while the other contraction rib 13 has a width of 12mm-17mm and a depth of 4mm-6mm. The vertical spacing between the two contraction ribs 13 can be 175mm-185mm. Specifically, one contraction rib 13 has a width of 20mm and a depth of 7mm, while the other contraction rib 13 has a width of 15mm and a depth of 5mm. The vertical spacing between the two contraction ribs 13 can be 180mm.

[0061] In some embodiments of this utility model, the pillar reinforcement plate 1 and the lower hinge reinforcement plate 3 are welded together, and structural adhesive is provided between the pillar reinforcement plate 1 and the lower hinge reinforcement plate 3. Specifically, the lower hinge reinforcement plate 3 is welded to the first sub-plate 14 and the second sub-plate 15, and structural adhesive is provided between the lower hinge reinforcement plate 3 and the first sub-plate 14 and the second sub-plate 15. This can improve the connection stiffness and strength between the pillar reinforcement plate 1 and the lower hinge reinforcement plate 3. Welding can achieve a rigid connection between the pillar reinforcement plate 1 and the lower hinge reinforcement plate 3, providing direct metal fusion, ensuring high strength and immediate load transfer capability, especially for rapid transmission of impact force during collision. The structural adhesive can achieve a tough connection between the pillar reinforcement plate 1 and the lower hinge reinforcement plate 3, fill the weld gap, and increase the shear strength and peel resistance of the joint surface between the pillar reinforcement plate 1 and the lower hinge reinforcement plate 3, reducing local brittleness caused by welding thermal stress, thereby improving the overall stiffness of the vehicle body pillar.

[0062] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the second sub-plate 15, the lower hinge reinforcement plate 3, and the vehicle sill 5 are connected by fasteners. The lower end of the lower hinge reinforcement plate 3 extends between the second sub-plate 15 and the sill 5, and the pillar reinforcement plate 1, the lower hinge reinforcement plate 3, and the sill 5 are connected together by fasteners. This further enhances the connection stability of the pillar reinforcement plate 1, the lower hinge reinforcement plate 3, and the sill 5. In the event of a side collision, it can prevent the lower end of the pillar reinforcement plate 1 from tearing open and intruding into the vehicle interior during barrier intrusion, further reducing the lateral intrusion of the vehicle pillars into the passenger compartment, thereby protecting passenger safety and improving the vehicle's collision safety.

[0063] Specifically, the lower end of the second sub-plate 15 of the column reinforcement plate 1 is provided with a first hole 16, and the lower hinge reinforcement plate 3 and the sill 5 are respectively provided with a second hole 31 and a third hole corresponding to the first hole 16. The fastener is adapted to pass through the first hole 16, the second hole 31 and the third hole in sequence, thereby realizing the fastener connection of the column reinforcement plate 1, the lower hinge reinforcement plate 3 and the sill 5.

[0064] The following describes the vehicle body according to an embodiment of the present invention.

[0065] The vehicle body according to an embodiment of the present utility model includes: a sill 5 and the aforementioned vehicle body pillars, and a second sub-plate 15 connected to the sill 5.

[0066] According to the vehicle body of this utility model embodiment, by dividing the pillar reinforcement plate 1 into a first sub-plate 14 and a second sub-plate 15, with the lower end of the first sub-plate 14 connected to the second sub-plate 15, and a lower hinge reinforcement plate 3 disposed at the lower end of the first sub-plate 14 and extending to the second sub-plate 15, the lower hinge reinforcement plate 3 is located inside the first sub-plate 14 and the second sub-plate 15 and connected to them, which can enhance the connection stability between the lower hinge reinforcement plate 3 and the pillar reinforcement plate 1, thereby enhancing the structural strength and bending strength of the lower end of the pillar reinforcement plate 1, and preventing the lower end of the pillar reinforcement plate 1 from tearing open and intruding into the vehicle interior during barrier intrusion. It can also disperse collision forces through multiple paths, thereby reducing the lateral intrusion of the vehicle pillar into the passenger compartment during side collisions, protecting passenger safety, and improving vehicle collision safety.

[0067] The vehicle according to an embodiment of the present invention is described below.

[0068] The vehicle according to an embodiment of the present invention includes: the vehicle body described above.

[0069] According to the vehicle embodiment of this utility model, by connecting the inner pillar panel 2, which is thinner, to a first plate 21 and thicker, and with the first plate 21 positioned above the second plate 22, the bending strength of the vehicle pillar can be improved. This reduces the lateral intrusion of the vehicle pillar into the passenger compartment during a side collision, thereby protecting passenger safety and improving the vehicle's collision safety. While meeting rigidity requirements, the inner pillar panel 2 can also be made lightweight, achieving weight reduction and effectively lowering the cost of the vehicle pillar and the vehicle itself.

[0070] The following is for reference. Figures 1 to 6 The following description describes a vehicle body pillar according to a specific embodiment of the present invention. It is to be understood that the following description is merely exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0071] Specifically, such as Figure 1 and Figure 3 As shown, the vehicle body pillar includes a pillar reinforcing plate 1 and a pillar inner plate 2. The vehicle body pillar is used in the vehicle. The pillar inner plate 2 is located inside and connected to the pillar reinforcing plate 1. The pillar inner plate 2 includes a first plate 21 and a second plate 22. The first plate 21 and the second plate 22 are welded together. The first plate 21 is located above the second plate 22, and the thickness of the first plate 21 is less than the thickness of the second plate 22. The thickness of the first plate 21 is 1.0mm-1.2mm, and the thickness of the second plate 22 is 1.4mm-1.6mm.

[0072] Increasing the thickness of the second plate 22 locally can effectively improve the structural strength of the inner plate 2 of the pillar, achieving localized reinforcement. Located lower, the second plate 22 is closer to the vehicle's sill 5 and forms the main force transmission path during a side collision, requiring it to withstand greater impact force and bending moment. Therefore, increasing the thickness of the second plate 22 can improve the bending strength of the vehicle pillar, thereby reducing the lateral intrusion of the pillar into the passenger compartment during a side collision, protecting passenger safety, and improving the vehicle's collision safety.

[0073] The first plate 21, located at the top, mainly bears the roof load and local deformation during side collisions, and needs to have a certain degree of flexibility to absorb energy. Locally thinning the thickness of the first plate 21 can achieve weight reduction of the inner plate 2 of the pillar while meeting the rigidity requirements, thus effectively reducing the cost of the vehicle pillar and improving the vehicle's economy.

[0074] Furthermore, the lower end of the second plate 22 is provided with a connecting portion 221, which has a mounting hole 222. The lower body 4 is provided with an assembly hole 41 corresponding to the mounting hole 222. The lower end of the second plate 22 is welded to the lower body 4 and connected by fasteners. This can prevent the inner panel 2 of the pillar from tearing open and intruding into the vehicle during barrier intrusion, further reducing the lateral intrusion of the body pillar into the passenger compartment, thereby protecting passenger safety and improving the vehicle's collision safety.

[0075] Furthermore, the second plate 22 has a notch 23 that extends through the second plate 22 along its thickness direction. The edge of the notch 23 is provided with a flange 24 that extends circumferentially along the notch 23. The width of the flange 24 is 4mm-6mm. In this application, the width of the flange 24 is increased, further enhancing the structural strength and bending strength of the second plate 22 at the notch 23, thereby improving the vehicle's collision safety.

[0076] Furthermore, such as Figure 3 and Figure 4 As shown, the pillar reinforcement plate 1 has a soft zone 11. The location of weld tearing on the pillar reinforcement plate 1 is identified through simulation, and the weld tearing location is laser-processed using laser soft zone 11 technology to form the soft zone 11. The tensile strength of the soft zone 11 is greater than the tensile strength of other areas of the pillar reinforcement plate 1 outside the soft zone 11. There are multiple soft zones 11, and at least some of the soft zones 11 are welded to the inner pillar plate 2 and the vehicle sill 5. This effectively enhances the elongation at the welded connection between the soft zone 11 and the inner pillar plate 2 and the vehicle sill 5, preventing the weld from tearing open. This prevents the pillar reinforcement plate 1 from tearing open and intruding into the vehicle interior during barrier intrusion, further reducing the lateral intrusion of the vehicle pillar into the passenger compartment, protecting passenger safety, and thus improving vehicle collision safety.

[0077] In addition, such as Figure 4 and Figure 6 As shown, the pillar reinforcement plate 1 includes a first sub-plate 14 and a second sub-plate 15. The first sub-plate 14 extends vertically, and its lower end is connected to the second sub-plate 15. The vehicle pillar also includes a lower hinge reinforcement plate 3, which is located at the lower end of the first sub-plate 14 and extends to the second sub-plate 15. That is, the lower end of the lower hinge reinforcement plate 3 extends between the second plate 22 and the sill 5, and the second sub-plate 15, the lower hinge reinforcement plate 3, and the sill 5 are connected together. This enhances the connection stability between the lower hinge reinforcement plate 3 and the pillar reinforcement plate 1, and can also disperse the collision force through multiple paths. In a side collision, the impact force will be transmitted to the lower hinge through the door, and the connection between the lower hinge reinforcement plate 3 and the sill 5 can guide part of the impact force to the sill 5 and the floor longitudinal beam, preventing the pillar reinforcement plate 1 from bearing the entire load alone, thereby preventing the lower end of the pillar reinforcement plate 1 from tearing open and intruding into the vehicle during barrier intrusion.

[0078] Other components of the vehicle according to the embodiments of the present invention, such as the lower body 4, doors, and sills 5, are known to those skilled in the art and will not be described in detail here.

[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0080] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle body pillar, characterized in that, include: A column reinforcing plate, the column reinforcing plate including a first sub-plate and a second sub-plate, the first sub-plate extending in the vertical direction, the lower end of the first sub-plate being connected to the second sub-plate; A lower hinge reinforcement plate is disposed at the lower end of the first sub-plate and extends to the second sub-plate. The lower hinge reinforcement plate is located inside the first sub-plate and the second sub-plate and is connected to the first sub-plate and the second sub-plate.

2. The vehicle body pillar according to claim 1, characterized in that, The lower end of the lower hinge reinforcement plate is located between the second sub-plate and the vehicle sill, and the lower hinge reinforcement plate is connected to the sill.

3. The vehicle body pillar according to claim 2, characterized in that, The lower hinge reinforcing plate is welded to the first sub-plate and the second sub-plate, and structural adhesive is provided between the lower hinge reinforcing plate and the first sub-plate and the second sub-plate; And / or, the second sub-plate, the lower hinge reinforcement plate, and the sill are connected by fasteners.

4. The vehicle body pillar according to claim 1, characterized in that, The vehicle body pillar also includes a pillar inner panel, at least one of the first sub-panel and the second sub-panel is provided with a soft area, the tensile strength of the soft area is greater than the tensile strength of the pillar reinforcing plate in other areas outside the soft area, there are multiple soft areas, at least some of the soft areas are welded to the pillar inner panel and the vehicle sill.

5. The vehicle body pillar according to claim 1, characterized in that, Also includes: The column inner plate is connected to the column reinforcing plate. The column inner plate includes a first plate and a second plate. The first plate is connected to the second plate. The first plate is located above the second plate. The thickness of the first plate is less than the thickness of the second plate.

6. The vehicle body pillar according to claim 5, characterized in that, The lower end of the second plate is welded to the lower body and connected by fasteners.

7. The vehicle body pillar according to claim 5, characterized in that, The second plate has a notch that penetrates the second plate along its thickness direction. The edge of the notch is provided with a flange that extends along the circumferential direction of the notch and has a width of 4mm-6mm.

8. The vehicle body pillar according to claim 1, characterized in that, The column reinforcing plate is provided with shrinkage ribs, which extend along the width direction of the column reinforcing plate, and there are multiple shrinkage ribs spaced apart in the vertical direction.

9. A vehicle body, characterized in that, include: threshold; According to any one of claims 1-8, the second sub-plate is connected to the door sill.

10. A vehicle, characterized in that, Includes the vehicle body as described in claim 9.

Images