A B-pillar-less side wall assembly, vehicle body and vehicle

Abstract

The application provides a B-pillar-free side wall assembly, a vehicle body and a vehicle. The B-pillar-free side wall assembly comprises a side wall outer plate and a side wall reinforcing plate. The side wall reinforcing plate comprises an A-pillar upper reinforcing plate, a C-pillar reinforcing plate, an upper side beam reinforcing plate, a rear side beam reinforcing plate and an upper side beam patch. The opposite ends of the extending direction of the upper side beam reinforcing plate and the rear side beam reinforcing plate are fixedly connected with the A-pillar upper reinforcing plate and the C-pillar reinforcing plate respectively. The upper side beam reinforcing plate and the rear side beam reinforcing plate are fixedly connected and enclose an upper rail groove. The opening of the upper rail groove faces outward. The inner wall of the upper rail groove is used for fixing an upper rail. The first end of the upper side beam patch is fixedly connected with the side of the upper side beam reinforcing plate which faces the opening of the upper rail groove. The second end of the upper side beam patch is fixedly connected with the side of the upper side beam reinforcing plate which faces the bottom of the upper rail groove. The B-pillar-free side wall assembly further comprises an upper lock catch mounting plate which is fixed to the inner wall of the upper rail groove and is used for mounting an upper lock catch. The application can improve the compression strength of the top of the vehicle body and improve the safety performance in a collision.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, specifically to a pillarless side panel assembly, vehicle body, and vehicle. Background Technology

[0002] Thanks to continuous technological innovation, the automotive industry has developed rapidly in recent years, with products iterating at an increasingly fast pace. Consumers have also become more demanding of cars, with convenience of getting in and out, spaciousness, and high safety becoming increasingly important market focuses. The emergence of pillarless models has undoubtedly brought new vitality to the automotive market, attracting the attention of many consumers and quickly becoming a market focal point.

[0003] Some pillarless models feature side-opening doors for the front and sliding doors for the rear. Guide rails are installed on the upper side beam, rear sill, and above the rear wheel arches to facilitate smooth opening and closing of the sliding doors. However, since the pillarless design eliminates the B-pillar, it negatively impacts safety performance. Therefore, innovative designs that optimize the side structure to improve vehicle safety are increasingly needed. Summary of the Invention

[0004] In view of this, the present invention provides a pillarless side panel assembly, a body, and a vehicle to solve the above-mentioned technical problems.

[0005] The B-pillarless side panel assembly provided by this invention includes an outer side panel and a side panel reinforcement plate, wherein: The side reinforcement plate includes an upper A-pillar reinforcement plate, a C-pillar reinforcement plate, an upper side beam reinforcement plate, a rear side beam reinforcement plate, and an upper side beam supplement plate. The opposite ends of the upper side beam reinforcement plate and the rear side beam reinforcement plate in their extending directions are respectively fixedly connected to the upper A-pillar reinforcement plate and the C-pillar reinforcement plate. The upper side beam reinforcement plate and the rear side beam reinforcement plate are fixedly connected and enclose an upper guide rail groove. The opening of the upper guide rail groove faces outwards from the vehicle. The inner wall of the upper guide rail groove is used to fix the upper guide rail. The first end of the upper side beam supplement plate is fixedly connected to the side of the upper side beam reinforcement plate facing the opening of the upper guide rail groove. The second end of the upper beam supplement plate is fixedly connected to the side of the upper side beam reinforcement plate facing the bottom of the upper guide rail groove. The pillarless side panel assembly also includes an upper locking mounting plate, which is fixed to the inner wall of the upper guide rail groove for installing the upper locking buckle.

[0006] Optionally, the side panel reinforcement plate further includes a sill reinforcement plate, which includes a front sill reinforcement plate and a rear sill reinforcement plate connected together. The rear sill reinforcement plate includes a first sill reinforcement plate, a second sill reinforcement plate, a third sill reinforcement plate and a fourth sill reinforcement plate arranged longitudinally. Adjacent plates overlap and are double-welded together. The second sill reinforcement plate and the third sill reinforcement plate enclose a lower guide rail groove. The opening of the lower guide rail groove faces outwards from the vehicle. The inner wall of the lower guide rail groove is used to fix the lower guide rail.

[0007] Optionally, the first sill reinforcement plate and the second sill reinforcement plate enclose a first protruding structure facing outwards from the vehicle. The third and fourth door sill reinforcement plates enclose a second protruding structure facing outwards from the vehicle.

[0008] Optionally, the rear sill reinforcement plate further includes: a sill support plate, the first end of which extends between the second sill reinforcement plate and the third sill reinforcement plate, the three being welded together in three layers; the second end of which is welded to the free end of the fourth sill reinforcement plate; and at least part of which is welded to the third sill reinforcement plate in the middle.

[0009] Optionally, a lower latch mounting plate is fixed on the front sill reinforcement plate, and the lower latch mounting plate is used to install the lower latch.

[0010] Optionally, the side panel includes an outer panel body, the outer panel body includes a C-pillar outer panel, a central guide rail groove is formed on the outer panel body, and a notch is opened at the C-pillar outer panel, and the notch is opened along the extension direction of the central guide rail groove. The side panel also includes a first side panel patch and a second side panel patch. The first side panel patch is fixedly connected to the C-pillar reinforcement plate and the C-pillar outer panel. The first side panel patch protrudes towards the inside of the vehicle and blocks part of the opening. The first end of the second side panel patch is fixedly connected to the first side panel patch, and the second end of the second side panel patch extends to the center guide rail groove and is fixedly connected to the inner wall of the center guide rail groove.

[0011] Optionally, the side reinforcement plate further includes a central guide rail reinforcement plate, which is disposed corresponding to the central guide rail groove and is fixedly connected to the outer plate body and the C-pillar reinforcement plate at the central guide rail groove.

[0012] Optionally, a sliding door latch mounting plate is fixed on the outer panel body near the notch, and the sliding door latch mounting plate is used to install the sliding door latch.

[0013] The present invention also provides a vehicle body including the pillarless side panel assembly described in any of the preceding claims.

[0014] The present invention also provides a vehicle comprising the aforementioned vehicle body.

[0015] The technical solutions provided by this invention have at least the following beneficial effects compared with the prior art: The B-pillarless side panel assembly, body, and vehicle of this invention improve structural strength and top compressive strength by adding upper side beam reinforcement plates at the upper and rear side beam reinforcement plates. The upper lock is fixed in the upper guide rail groove by the upper lock mounting plate, which improves the installation strength of the upper lock. This facilitates the effective connection between the front door and the side panel, improves safety collision performance, and ensures that the strength of the B-pillarless body structure meets performance requirements. Attached Figure Description

[0016] Figure 1 This is a color rendering of a pillarless side panel assembly according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the structure of the side reinforcement plate of the side panel assembly without B-pillars. Figure 3 for Figure 2 Rear view of the side reinforcement plate shown; Figure 4 for Figure 2 A schematic diagram showing the connection relationship between the upper side beam reinforcement plate, the rear side beam reinforcement plate, and the upper side beam supplement plate of the side reinforcement plate shown. Figure 5 for Figure 2 The structural diagram of the sill reinforcement plate of the side wall reinforcement plate shown; Figure 6 for Figure 5 Rear view of the threshold reinforcement plate shown; Figure 7 for Figure 2 A partially enlarged view of the side reinforcement plate shown; Figure 8 for Figure 7 The diagram shows the structure after the side reinforcement plate is connected to the outer side plate. Figure 9 for Figure 8 The diagram shows the structure of the guide rail mounted on the outer side panel. Figure 10 for Figure 9 Rear view of the structural diagram shown; Figure 11 for Figure 2 A schematic diagram of the side reinforcement plate shown; Figure 12 for Figure 11 A partial enlarged view of the rear beam reinforcement plate M of the side reinforcement plate shown; Figure 13 for Figure 11A magnified view of a portion of the front sill reinforcement plate N of the side panel reinforcement plate shown; Figure 14 for Figure 13 The bottom view of the front sill reinforcement plate shown; Figure 15 for Figure 11 The cross-sectional view at point AA is shown below. Figure 16 for Figure 11 The cross-sectional view at point BB is shown below; Figure 17 for Figure 11 The cross-sectional view at point CC is shown below. Figure 18 for Figure 11 The cross-sectional view at DD is shown below; Figure 19 for Figure 11 The cross-sectional view at EE is shown.

[0017] Figure label: 100: Side panel outer layer; 200: Side reinforcement panel; 1: Upper A-pillar reinforcement plate; 2: C-pillar reinforcement plate; 3: Upper side beam reinforcement plate; 4: Rear side beam reinforcement plate; 5: Upper side beam supplement plate; 6: Upper guide rail groove; 7: Upper guide rail; 8: Upper lock mounting plate; 9: Upper lock; 10: Sill reinforcement plate; 101: Front sill reinforcement plate; 102: Rear sill reinforcement plate; 1021: First sill reinforcement plate; 1022: Second sill reinforcement plate; 1023: Third sill reinforcement plate; 1024: Fourth sill reinforcement plate; 1025: Sill support plate; 11: Lower guide rail 12: Groove; 13: Lower guide rail; 14: First protruding structure; 15: Second protruding structure; 16: Lower latch mounting plate; 17: Lower latch; 18: Outer panel body; 19: C-pillar outer panel; 20: Middle guide rail groove; 21: Notch; 22: First side panel reinforcement plate; 23: Middle guide rail; 24: Middle guide rail reinforcing plate; 25: Sliding door latch mounting plate; 26: Sliding door latch; 27: Decorative panel; 28: Hinge mounting plate; 29: Lower A-pillar reinforcing plate; 30: Pad plate; 31: Inner side panel. Detailed Implementation

[0018] The embodiments of the present invention will be further described below with reference to the accompanying drawings. 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., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of the present invention and do not indicate or imply that the device or component 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 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. The terms "first position" and "second position" refer to two different positions.

[0019] like Figure 1-4 , Figure 11 , Figure 12 and Figure 15 As shown, the side panel assembly without B-pillars includes an outer side panel 100 and a side panel reinforcement plate 200. The side panel reinforcement plate 200 includes an upper A-pillar reinforcement plate 1, a C-pillar reinforcement plate 2, an upper side beam reinforcement plate 3, a rear side beam reinforcement plate 4, and an upper side beam supplement plate 5. The upper side beam reinforcing plate 3 and the rear side beam reinforcing plate 4 are respectively fixedly connected to the upper A-pillar reinforcing plate 1 and the C-pillar reinforcing plate 2 at their respective ends in the extension direction. The upper side beam reinforcing plate 3 and the rear side beam reinforcing plate 4 are fixedly connected and enclose the upper guide rail groove 6. The opening of the upper guide rail groove 6 faces outward. The inner wall of the upper guide rail groove 6 is used to fix the upper guide rail 7. The first end of the upper side beam supplement plate 5 is fixedly connected to the side of the upper side beam reinforcing plate 3 facing the opening of the upper guide rail groove 6. The second end of the upper side beam supplement plate 5 is fixedly connected to the side of the upper side beam reinforcing plate 3 facing the bottom of the upper guide rail groove 6. The B-pillar-less side panel assembly also includes an upper locking mounting plate 8, which is fixed to the inner wall of the upper guide rail groove 6 and is used to install the upper locking buckle 9.

[0020] During assembly, the upper beam reinforcing plate 3 and the rear beam reinforcing plate 4 are stacked at intervals. The two ends of their extension directions are welded to the upper ends of the upper A-pillar reinforcing plate 1 and the upper ends of the C-pillar reinforcing plate 2, respectively. The upper beam reinforcing plate 3 and the rear beam reinforcing plate 4 are attached and welded together on the side facing the inside of the vehicle, thereby forming an upper guide rail groove 6 between them. The opening of the upper guide rail groove 6 faces outward and the bottom of the groove faces inward. The upper guide rail 7 is fixed in the upper guide rail groove 6, and the upper end of the sliding door of the rear door is embedded in the upper guide rail 7. For models without a B-pillar, the removal of the B-pillar weakens the support for the upper beam of the vehicle body. To improve the structural strength of the upper beam and eliminate the impact of the absence of a B-pillar, an upper beam reinforcement plate 5 is added to the side of the upper beam reinforcement plate 3 facing away from the rear beam reinforcement plate 4. One end of the upper beam reinforcement plate 5 is welded and fixed to the side of the upper beam reinforcement plate 3 near the opening of the upper guide rail groove 6, and the other end is welded and fixed to the side of the upper beam reinforcement plate 3 near the bottom of the upper guide rail groove 6. That is, the upper beam reinforcement plate 5 spans almost the entire width of the upper beam reinforcement plate 3. During a roof collision, the external force is transmitted to the upper beam reinforcement plate 3 and the rear beam reinforcement plate 4 through the upper beam reinforcement plate 5, bearing and dispersing part of the collision force and improving the structural strength of the vehicle roof. The locking buckle 9 is fixed to the upper guide rail groove 6 by the locking buckle mounting plate 8. Compared with directly fixing it to the upper guide rail groove 6, the installation strength of the locking buckle 9 is improved. The locking buckle 9 is used to lock the front door of the vehicle, which in turn helps to improve the effective connection between the front door and the side panel.

[0021] The B-pillarless side panel assembly of this invention improves its structural strength and effectively enhances the roof's compressive strength by adding upper side beam reinforcement plates 5 at the upper side beam reinforcement plate 3 and rear side beam reinforcement plate 4. The upper locking buckle 9 is fixed in the upper guide rail groove 6 by the upper locking buckle mounting plate 8, which improves the installation strength of the upper locking buckle 9. This facilitates the effective connection between the front door and the side panel, improves safety collision performance, and ensures that the strength of the B-pillarless body structure meets performance requirements.

[0022] like Figure 2 As shown, the left side represents the front of the vehicle, and the right side represents the rear. The door sill reinforcement plate 10, the lower A-pillar reinforcement plate 29, and the upper A-pillar reinforcement plate 1 are connected sequentially. The left ends of the upper side beam reinforcement plate 3 and the rear side beam reinforcement plate 4 are welded to the upper end of the upper A-pillar reinforcement plate 1, and their right ends are welded to the upper end of the C-pillar reinforcement plate 2. Figure 4As shown, in this embodiment, the upper beam reinforcing plate 3 forms a protrusion facing the lower rear beam reinforcing plate 4 at approximately the middle position, thereby forming a groove on the upper surface facing away from the rear beam reinforcing plate 4. This results in the upper beam reinforcing plate 3 having an uneven structure with concave and convex surfaces. The upper guide rail 7 is fixed to the protrusion of the upper beam reinforcing plate 3 facing the rear beam reinforcing plate 4. The upper beam reinforcement plate 5 spans the groove formed opposite to the protrusion, and its opening end facing the upper guide rail groove 6 is double-welded to the upper beam reinforcing plate 3. Its bottom end facing the upper guide rail groove 6 is triple-welded to the upper beam reinforcing plate 3 and the rear beam reinforcing plate 4. This multi-layer welding further enhances the structural strength, thereby further improving the top pressure resistance. Figure 15 Due to the cross-sectional position, the left end of the upper beam reinforcement plate 5 is cut off at the position where it does not overlap with the upper beam reinforcing plate 3. The upper part of the upper beam reinforcement plate 5 overlaps with the outer side panel 100. The upper beam reinforcement plate 5, the upper beam reinforcing plate 3, and the rear beam reinforcing plate 4 are at one end of the bottom of the upper guide rail groove 6, that is... Figure 15 The right end of the three layers is welded together; the solid black dots in the diagram indicate the welding points. The rear beam reinforcing plate 4, facing away from the upper side beam reinforcing plate 3, is used to connect to the inner side panel 31. (See image for details.) Figure 2 , Figure 11 and Figure 12 As shown, at one end of the upper guide rail groove 6 near the upper reinforcing plate 1 of the A-pillar, an upper locking buckle mounting plate 8 is fixed inside the upper guide rail groove 6 for mounting the upper locking buckle 9, so that the vehicle door can be smoothly locked when closed. The upper locking buckle mounting plate 8 is set with an irregular three-dimensional shape and is fixedly connected to the inner wall of the upper guide rail groove 6, which can further improve the structural strength at this position, thereby achieving an effective connection between the front door and the side wall when the vehicle front door is closed, improving safety collision performance. A limiter can also be installed on the upper locking buckle mounting plate 8 for limiting the movement of the vehicle front door. In this embodiment, the upper beam reinforcement plate 5 is made of DC01 material with a thickness of 1mm. According to actual needs, the material, thickness and specific shape and size of the upper beam reinforcement plate 5 can be adjusted. The number of upper beam reinforcement plates 5 can be adjusted. The specific connection position with the upper beam reinforcing plate 3 and the rear beam reinforcing plate 4 can also be adjusted, as long as the top pressure resistance can be improved. The specific shape and structure of the upper locking mounting plate 8 can also be adjusted, as long as the structural strength can be improved and a stable connection with the vehicle front door can be achieved.

[0023] Optionally, the side reinforcement plate 200 also includes a sill reinforcement plate 10. The sill reinforcement plate 10 includes a front sill reinforcement plate 101 and a rear sill reinforcement plate 102 connected together. The rear sill reinforcement plate 102 includes a first sill reinforcement plate 1021, a second sill reinforcement plate 1022, a third sill reinforcement plate 1023 and a fourth sill reinforcement plate 1024 arranged longitudinally. The adjacent plates overlap and are connected by double-layer welding. The second sill reinforcement plate 1022 and the third sill reinforcement plate 1023 enclose a lower guide rail groove 11. The opening of the lower guide rail groove 11 faces outwards. The inner wall of the lower guide rail groove 11 is used to fix the lower guide rail 12. This configuration splits the rear sill reinforcement plate 102 into multiple components that are double-welded together. Compared to integral molding, the double-welded connection of adjacent components improves the connection strength, which in turn improves the overall structural strength of the rear sill reinforcement plate 102. In addition, splitting it into multiple components reduces the molding difficulty. Moreover, after splitting, different strength materials can be used for each component according to the anti-collision requirements of different parts, which improves the flexibility of the layout.

[0024] like Figure 5 , Figure 6 and Figure 16As shown, in this embodiment, from top to bottom, a first threshold reinforcement plate 1021, a second threshold reinforcement plate 1022, a third threshold reinforcement plate 1023, and a fourth threshold reinforcement plate 1024 are arranged sequentially, and all four are arranged in a Z-shape. The top and bottom ends of the first threshold reinforcement plate 1021 and the fourth threshold reinforcement plate 1024 are vertically arranged, and the left and right ends of the second threshold reinforcement plate 1022 and the third threshold reinforcement plate 1023 are vertically arranged. The lower end of the first threshold reinforcement plate 1021 overlaps and adheres to the left end of the second threshold reinforcement plate 1022 to achieve double-layer welding. The right end of the second threshold reinforcement plate 1022 overlaps and adheres to the right end of the third threshold reinforcement plate 1023 to achieve double-layer welding. The left end of the third threshold reinforcement plate 1023 overlaps and adheres to the upper end of the fourth threshold reinforcement plate 1024 to achieve double-layer welding. Furthermore, the second sill reinforcement plate 1022 and the third sill reinforcement plate 1023 enclose a protrusion facing inwards, thereby forming a lower guide rail groove 11 on the side facing outwards. The lower guide rail 12 is welded and fixed to the lower guide rail groove 11. To meet the installation strength, molding process, and safety collision requirements of the lower guide rail 12, the grade and material thickness of each component are optimally allocated. In this embodiment, the first sill reinforcement plate 1021 is made of HC420 / 780DP D+Z, the second sill reinforcement plate 1022 is made of HC340 / 590DP D+Z, the third sill reinforcement plate 1023 is made of HC340 / 590DP D+Z, and the fourth sill reinforcement plate 1024 is made of HC420 / 780DP D+Z. The material thickness of each component is 1.2mm. Depending on the actual application, the specific shape, size, thickness and material of the first threshold reinforcement plate 1021, the second threshold reinforcement plate 1022, the third threshold reinforcement plate 1023 and the fourth threshold reinforcement plate 1024 can be adjusted appropriately.

[0025] Optionally, the first sill reinforcement plate 1021 and the second sill reinforcement plate 1022 enclose a first protruding structure 13 facing outwards; the third sill reinforcement plate 1023 and the fourth sill reinforcement plate 1024 enclose a second protruding structure 14 facing outwards. With the help of the first protruding structure 13, the second protruding structure 14, and the lower guide groove 11 enclosed by the second sill reinforcement plate 1022 and the third sill reinforcement plate 1023, the rear sill reinforcement plate 102 presents a three-dimensional shape with varying concave and convex shapes, which helps to improve the overall structural strength of the rear sill reinforcement plate 102.

[0026] like Figure 16As shown, the left side is the outside of the vehicle and the right side is the inside of the vehicle. In this embodiment, the connection position between the first sill reinforcement plate 1021 and the second sill reinforcement plate 1022 protrudes outwards, the connection position between the second sill reinforcement plate 1022 and the third sill reinforcement plate 1023 protrudes inwards, and the connection position between the third sill reinforcement plate 1023 and the fourth sill reinforcement plate 1024 protrudes outwards. Thus, the rear sill reinforcement plate 102 forms a convex-concave-convex overall structure from top to bottom. The three-dimensional structure is more conducive to resisting external collisions.

[0027] Optionally, the rear sill reinforcement plate 102 also includes a sill support plate 1025. The first end of the sill support plate 1025 extends between the second sill reinforcement plate 1022 and the third sill reinforcement plate 1023, and the three plates are welded together in three layers. The second end of the sill support plate 1025 is welded to the free end of the fourth sill reinforcement plate 1024, and at least part of the middle portion of the sill support plate 1025 is welded to the third sill reinforcement plate 1023. This arrangement, through the multi-layer welded connection between the sill support plate 1025 and the second sill reinforcement plate 1022, the third sill reinforcement plate 1023, and the fourth sill reinforcement plate 1024, further enhances the overall strength of the rear sill reinforcement plate 102 and improves its side impact resistance.

[0028] like Figure 6 and Figure 16 As shown, in this embodiment, the sill support plate 1025 is also Z-shaped. The upper and lower ends of the sill support plate 1025 are vertically arranged, with the upper end positioned between the second sill reinforcement plate 1022 and the third sill reinforcement plate 1023. These three plates are fitted together and welded in three layers. The lower end is fitted together with the lower end of the fourth sill reinforcement plate 1024 and welded in two layers. The middle of the sill support plate 1025 is nearly horizontal, at least partially fitted together with the middle of the third sill reinforcement plate 1023 and welded in two layers. The sill area is a critical area for side impacts. Adding the sill support plate 1025, while maximizing the weight reduction coefficient, strengthens the sill reinforcement plate 10 and improves side impact strength. In this embodiment, the sill support plate 1025 is made of HC420 / 780DP D+Z material with a thickness of 1.5mm. The specific material and thickness of the sill support plate 1025 can be adjusted according to different anti-collision requirements.

[0029] Optionally, a lower latch mounting plate 15 is fixed to the front sill reinforcement plate 101, and the lower latch mounting plate 15 is used to install the lower latch 16. By using the lower latch mounting plate 15 to fix the lower latch 16 to the front sill reinforcement plate 101, the installation strength of the lower latch 16 is improved compared to fixing it directly to the front sill reinforcement plate 101. The lower latch 16 is used to lock the front door of the vehicle, which in turn helps to improve the effective connection between the front door and the side panel.

[0030] like Figure 13 , Figure 14 and Figure 19 As shown, in this embodiment, the lower latch 16 is installed on the front sill reinforcement plate 101. The lower latch mounting plate 15 is attached to and welded to the side of the front sill reinforcement plate 101 facing inwards. Bolts pass through the lower latch mounting plate 15, the front sill reinforcement plate 101, the side panel 100, and the lower latch 16 to install the lower latch 16. To further improve the stability of the bolt connection, such as... Figure 14 and Figure 19 As shown, a pad 30 is added to the side of the lower latch mounting plate 15 facing the vehicle interior. Bolts pass through the pad 30, the lower latch mounting plate 15, the front sill reinforcement plate 101, the side panel 100, and the lower latch 16 to install the lower latch 16. In this embodiment, to better fit the front sill reinforcement plate 101, the lower latch mounting plate 15 is configured as a bent structure that matches the shape of the front sill reinforcement plate 101, with an arc transition at the bend. The specific shape and dimensions of the lower latch mounting plate 15 can be adjusted according to actual application.

[0031] Optionally, the side panel 100 includes a panel body 17, which includes a C-pillar panel 18. A central guide rail groove 19 is formed on the panel body 17. A notch 20 is provided at the C-pillar panel 18, and the notch 20 is provided along the extension direction of the central guide rail groove 19. The side panel 100 also includes a first side panel reinforcement plate 21 and a second side panel reinforcement plate 22. The first side panel reinforcement plate 21 is fixedly connected to the C-pillar reinforcing plate 2 and the C-pillar panel 18. The first side panel reinforcement plate 21 protrudes towards the interior of the vehicle and blocks part of the notch 20. The first end of the second side panel reinforcement plate 22 is fixedly connected to the first side panel reinforcement plate 21, and the second end of the second side panel reinforcement plate 22 extends to the central guide rail groove 19 and is fixedly connected to the inner wall of the central guide rail groove 19. This configuration separates the outer side panel 100 into independent components: the outer panel body 17, the first side panel patch 21, and the second side panel patch 22. This reduces the overall molding difficulty, and the positions of the first side panel patch 21 and the second side panel patch 22 are used to install other components. Higher strength materials can be selected individually according to installation requirements, which improves the flexibility of use.

[0032] like Figure 1 As shown, in this embodiment, the outer panel body 17 has a central guide rail groove 19 formed horizontally in the area above the rear wheel arch, providing installation space for the central guide rail 23. Along the extension direction of the central guide rail groove 19 towards the front of the vehicle, a notch 20 is provided in the area corresponding to the C-pillar outer panel 18, and the notch 20 penetrates the C-pillar outer panel 18 towards the front of the vehicle. Figure 8As shown, the first side panel 21 is disposed in the notch 20 and is welded to the C-pillar reinforcement plate 2 and the C-pillar outer plate 18 respectively. The left end is flush with the end of the adjacent C-pillar outer plate 18. The notch 20 is the closing position of the rear door sliding door, which protrudes towards the inside of the vehicle. Therefore, the first side panel 21 also forms a protruding structure towards the inside of the vehicle, thereby forming a recess on the side facing outwards. There is a height difference between the first side panel 21 and the central guide rail groove 19. The second side panel 22 is welded to the first side panel 21, the C-pillar outer panel 18, and the C-pillar reinforcing plate 2 at the front end, and welded to the bottom of the central guide rail groove 19 at the rear end. The second side panel 22 cooperates with the first side panel 21 to completely seal the gap 20, and the second side panel 22 also serves as a transition, with one end flush with the edge of the first side panel 21 and the other end flush with the bottom of the central guide rail groove 19, gradually transitioning in the middle. Figure 9 and Figure 17 As shown, the first side panel 21, the second side panel 22, and the central guide rail groove 19 cooperate to install the central guide rail 23. To improve the aesthetics, a decorative panel 27 is also provided to cover the central guide rail groove 19 and conceal the central guide rail 23. A hinge mounting plate 28 can also be fixed inside the first side panel 21 for installing hinges and connecting to the sliding door of the rear door. Additionally, components such as front guide wheel foam can be installed. In this embodiment, the first side panel 21 is made of DC56 D+Z material with a thickness of 0.65mm, and the second side panel 22 is made of HC180Y D+Z material with a thickness of 1.2mm. Depending on the actual application, the specific location of the central guide rail groove 19 on the outer panel body 17, the specific shape and size of the notch 20, and the specific shape, size, and material selection of the first side panel patch 21 and the second side panel patch 22 can all be matched and adjusted. As long as the high-strength material of the first side panel patch 21 and the second side panel patch 22 can improve the structural strength at this location, and the cooperation between the first side panel patch 21, the second side panel patch 22, and the central guide rail groove 19 can stably install the central guide rail 23, so that the rear door can slide stably along the central guide rail 23.

[0033] Optionally, the side reinforcement plate 200 also includes a central guide rail reinforcement plate 24. The central guide rail reinforcement plate 24 is disposed corresponding to the central guide rail groove 19 and is fixedly connected to the outer panel body 17 and the C-pillar reinforcement plate 2 at the central guide rail groove 19. This arrangement, by means of the connection between the central guide rail reinforcement plate 24 and the outer panel body 17 at the central guide rail groove 19, improves the structural strength at the central guide rail groove 19, thereby improving the installation strength of the central guide rail 23 and enhancing the connection stability between the rear door and the central guide rail 23.

[0034] like Figure 7As shown, in this embodiment, the middle guide rail reinforcing plate 24 extends in the same direction as the middle guide rail groove 19 and is welded to the C-pillar reinforcing plate 2 and the outer plate body 17. The middle guide rail reinforcing plate 24 is bent into a three-dimensional structure to further enhance its strength. The specific shape and size of the middle guide rail reinforcing plate 24 can be adjusted according to the actual application.

[0035] Optionally, a sliding door latch mounting plate 25 is fixed on the outer panel body 17 near the notch 20, and the sliding door latch mounting plate 25 is used to install the sliding door latch 26.

[0036] like Figure 9 As shown, in this embodiment, the sliding door latch 26 is fixed to the outer panel body 17 near the notch 20, as... Figure 10 and Figure 18 As shown, the sliding door latch mounting plate 25 is fixed to the side of the outer panel body 17 facing the vehicle interior. The sliding door latch 26 can be connected to the outer panel body 17 and the sliding door latch mounting plate 25 by three-layer welding, or it can be connected by other fasteners. Depending on the different moving positions of the rear sliding door of different vehicle models, the specific fixing position and specific shape and size of the sliding door latch mounting plate 25 on the side outer panel 100 can be matched and adjusted.

[0037] The present invention also provides a vehicle body including the pillarless side panel assembly described in any of the above embodiments.

[0038] By adding upper side beam reinforcement plates 5 at the upper side beam reinforcement plate 3 and the rear side beam reinforcement plate 4, the structural strength of the body is improved, and the top compressive strength is effectively improved. The upper locking buckle 9 is fixed in the upper guide rail groove 6 by means of the upper locking buckle mounting plate 8, which improves the installation strength of the upper locking buckle 9. This facilitates the effective connection between the front door and the side panel, improves the safety collision performance, and ensures that the strength of the B-pillar-free body structure meets the performance requirements.

[0039] The present invention also provides a vehicle comprising the aforementioned vehicle body.

[0040] The vehicle using this invention improves its structural strength by adding upper side beam reinforcement plates 5 at the upper side beam reinforcement plate 3 and the rear side beam reinforcement plate 4, effectively enhancing the top compressive strength. The upper locking buckle 9 is fixed in the upper guide rail groove 6 by means of the upper locking buckle mounting plate 8, which improves the installation strength of the upper locking buckle 9. This facilitates the effective connection between the front door and the side panel, improves safety collision performance, and ensures that the strength of the B-pillar-free body structure meets performance requirements.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pillarless side panel assembly, comprising an outer side panel and a side panel reinforcing plate, characterized in that: The side reinforcement plate includes an upper A-pillar reinforcement plate, a C-pillar reinforcement plate, an upper side beam reinforcement plate, a rear side beam reinforcement plate, and an upper side beam supplement plate. The opposite ends of the upper side beam reinforcement plate and the rear side beam reinforcement plate in their extending directions are respectively fixedly connected to the upper A-pillar reinforcement plate and the C-pillar reinforcement plate. The upper side beam reinforcement plate and the rear side beam reinforcement plate are fixedly connected and enclose an upper guide rail groove. The opening of the upper guide rail groove faces outwards from the vehicle. The inner wall of the upper guide rail groove is used to fix the upper guide rail. The first end of the upper side beam supplement plate is fixedly connected to the side of the upper side beam reinforcement plate facing the opening of the upper guide rail groove. The second end of the upper beam supplement plate is fixedly connected to the side of the upper side beam reinforcement plate facing the bottom of the upper guide rail groove. The pillarless side panel assembly also includes an upper locking mounting plate, which is fixed to the inner wall of the upper guide rail groove for installing the upper locking buckle.

2. The pillarless side panel assembly according to claim 1, characterized in that: The side panel reinforcement plate also includes a sill reinforcement plate, which includes a front sill reinforcement plate and a rear sill reinforcement plate connected together. The rear sill reinforcement plate includes a first sill reinforcement plate, a second sill reinforcement plate, a third sill reinforcement plate and a fourth sill reinforcement plate arranged longitudinally. Adjacent plates overlap and are double-welded together. The second sill reinforcement plate and the third sill reinforcement plate enclose a lower guide rail groove. The opening of the lower guide rail groove faces outwards from the vehicle. The inner wall of the lower guide rail groove is used to fix the lower guide rail.

3. The pillarless side panel assembly according to claim 2, characterized in that: The first sill reinforcement plate and the second sill reinforcement plate enclose a first protruding structure facing outwards from the vehicle; The third and fourth door sill reinforcement plates enclose a second protruding structure facing outwards from the vehicle.

4. The pillarless side panel assembly according to claim 3, characterized in that, The rear sill reinforcement plate also includes: A sill support plate, wherein the first end of the sill support plate extends between the second sill reinforcement plate and the third sill reinforcement plate, and the three are welded together in three layers; the second end of the sill support plate is welded to the free end of the fourth sill reinforcement plate; and at least part of the middle portion of the sill support plate is welded to the third sill reinforcement plate.

5. The pillarless sidewall assembly according to any one of claims 2-4, characterized in that: A lower locking buckle mounting plate is fixed on the front sill reinforcement plate, and the lower locking buckle mounting plate is used to install the lower locking buckle.

6. The pillarless sidewall assembly according to any one of claims 1-4, characterized in that: The side panel includes an outer panel body, the outer panel body includes a C-pillar outer panel, a central guide rail groove is formed on the outer panel body, and a notch is opened at the C-pillar outer panel, and the notch is opened along the extension direction of the central guide rail groove. The side panel also includes a first side panel patch and a second side panel patch. The first side panel patch is fixedly connected to the C-pillar reinforcement plate and the C-pillar outer panel. The first side panel patch protrudes towards the inside of the vehicle and blocks part of the opening. The first end of the second side panel patch is fixedly connected to the first side panel patch, and the second end of the second side panel patch extends to the center guide rail groove and is fixedly connected to the inner wall of the center guide rail groove.

7. The pillarless sidewall assembly according to claim 6, characterized in that, The side reinforcement plate also includes: A central guide rail reinforcing plate is provided corresponding to the central guide rail groove and is fixedly connected to the outer plate body and the C-pillar reinforcing plate at the central guide rail groove.

8. The pillarless side panel assembly according to claim 6, characterized in that: A sliding door latch mounting plate is fixed on the outer panel body near the notch, and the sliding door latch mounting plate is used to install the sliding door latch.

9. A vehicle body, characterized in that, Includes the pillarless sidewall assembly as described in any one of claims 1-8.

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

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