Support for a through-type tail light housing, a back door, and a vehicle

Abstract

The application discloses a bracket for a through-type tail lamp box, a back door and a vehicle, and relates to the technical field of vehicle manufacturing. The bracket for the through-type tail lamp box comprises a bracket body, a first supporting part, a second supporting part and a third supporting part, the top end of the bracket body extends out of the first supporting part, the opposite sides of the bracket body both extend out of the second supporting part, and the bottom end of the second supporting part extends out of the third supporting part; the first supporting part, the second supporting part and the third supporting part are respectively located on the opposite sides of a recessed area of a tail lamp box; the first supporting part and the second supporting part are respectively connected with an outer plate of a back door and an inner plate of the back door, and the third supporting part is used for being connected with a lock mounting surface. The bracket for the through-type tail lamp box, the back door and the vehicle solve the problem that the rigidity of a back door of a through-type tail lamp is not ideal.

Description

Technical Field

[0001] This application relates to the field of vehicle parts technology, and more specifically, to a bracket for a through-type taillight box, a tailgate, and a vehicle. Background Technology

[0002] The tailgate is a major component of a vehicle's body. As the primary opening and closing system, it not only fulfills functional requirements such as storage and escape routes but also needs to meet demands for durability, NVH (noise, vibration, and harshness), and aesthetic appeal. With increasing demands for visual appeal, especially the clever integration of a continuous taillight design at the rear of the vehicle, it has become a major highlight. The complex internal structure of continuous taillights naturally brings more stringent manufacturing requirements. The continuous taillight design is particularly common in high-end and new energy vehicles. Its main characteristic is that the taillight presents a horizontal visual effect across the rear of the vehicle, enhancing its technological and modern feel and improving its overall aesthetics. However, the design of continuous taillights is relatively complex, with more intricate wiring harnesses, which increases the probability of malfunctions and raises maintenance costs. Due to its complex structure and larger light cluster area, the durability and reliability of the taillights may be challenged. This presents an increasingly greater challenge to tailgate design. How to design a tailgate that meets the aesthetic requirements of a continuous taillight while simultaneously ensuring durability, NVH, and lightweight performance has become a design challenge.

[0003] In existing technologies, taillights on the tailgate are generally divided into split and continuous types. Split taillight tailgate structures, because the taillight box does not cut off the middle section, have relatively continuous vertical rigidity, making it easier to achieve good durability and NVH performance. Continuous taillight tailgate structures, due to the need to install continuous taillights, require the taillight box to cut the outer panel into an upper and lower outer panel in the middle. Most notably, the upper and lower outer panels form a concave arc that runs horizontally through the vehicle. The deeper the concave arc, the heavier the taillight. Furthermore, the discontinuity in the vertical rigidity of the tailgate can cause bending deformation at the taillight box location, significantly impacting durability and NVH performance.

[0004] Therefore, a bracket, tailgate, and vehicle are needed for a through-type taillight box to solve the above problems. Summary of the Invention

[0005] In view of this, the purpose of this application is to propose a bracket, a tailgate, and a vehicle for a through-type taillight box, so as to solve the problem of the unsatisfactory rigidity of existing through-type taillight tailgates.

[0006] To achieve the above objectives, this application provides a bracket for a through-type taillight box, comprising:

[0007] The bracket comprises a main body, a first support portion, a second support portion, and a third support portion. The first support portion extends from the top of the main body, the second support portion extends from both opposite sides of the main body, and the third support portion extends from the bottom of the second support portion. The first support portion, the second support portion, and the third support portion are located on opposite sides of the recessed area of ​​the taillight box. The first support portion and the second support portion are connected to the outer panel and the inner panel of the tailgate, respectively, and the third support portion is used to connect to the lock mounting surface.

[0008] Optionally, the first support portion includes two first protruding structures symmetrically arranged along the main body of the support frame. The first protruding structures are disposed on the top end face of the main body of the support frame and extend away from the main body. The free ends of the first protruding structures are provided with first welded edges; and / or,

[0009] The second support portion includes two second protruding structures symmetrically arranged along the main body of the support frame. These second protruding structures are located on the side of the main body near the bottom end and extend away from the main body; and / or

[0010] The third support includes two third protrusion structures symmetrically arranged along the main body of the support. The third protrusion structure is disposed on the bottom end of the second protrusion structure and extends away from the second protrusion structure and the main body of the support.

[0011] Optionally, at least some edges of the bracket body, the first protrusion structure, the second protrusion structure, and the third protrusion structure are provided with flanges.

[0012] Optionally, at least one of the support body, the first protrusion structure, the second protrusion structure, and the third protrusion structure is provided with a first weight-reducing hole, and a first reinforcing rib is provided near the edge of the first weight-reducing hole.

[0013] This application also provides a rear door, including:

[0014] The rear tailgate inner panel has a lock mounting surface.

[0015] The tailgate outer panel covers the tailgate inner panel, and a taillight box recessed area is provided on the tailgate outer panel;

[0016] Two taillight reinforcement plates, both of which are connected to the outer panel of the rear tailgate and are respectively located at opposite ends of the recessed area of ​​the taillight box;

[0017] As described above, the bracket for the through-type taillight box has a first support portion, a second support portion, and a third support portion extending from the main body of the bracket. The first support portion, the second support portion, and the third support portion are located on opposite sides of the recessed area of ​​the taillight box. The first support portion and the second support portion are connected to the outer panel of the rear tailgate and the inner panel of the rear tailgate, respectively, and the third support portion is used to connect to the lock mounting surface.

[0018] Optionally, the rear door inner panel includes an inner panel, an inner panel overlap block, and a reinforcing rib. The two opposite ends of the inner panel overlap block are respectively connected to the opposite side walls of the inner panel. The reinforcing rib is disposed opposite to the inner panel overlap block, and at least one of its opposite ends and between the two ends is connected to the inner panel. The inner panel overlap block and the reinforcing rib can be closed to form a closed structure. A lock reinforcing plate is provided on the reinforcing rib, and the lock mounting surface is disposed on the lock reinforcing plate.

[0019] Optionally, the tailgate outer panel includes an upper outer panel and a lower outer panel separated by the taillight box recessed area. The taillight box recessed area is disposed opposite to the inner panel overlap block. The reinforcing rib crosses the taillight box recessed area. The opposite sides of the taillight reinforcing plate are respectively connected to the upper outer panel and the lower outer panel. The bracket is disposed between the inner panel and the reinforcing rib. The first support part is connected to the taillight box recessed area. The second support part is connected to the reinforcing rib. The third support part is connected to the lock reinforcing plate.

[0020] Optionally, a gas spring reinforcing plate is provided on the inner panel of the rear door, the gas spring reinforcing plate is provided with gas spring mounting holes, and the gas spring reinforcing plate is provided with at least a partial welding edge in the circumferential direction. The gas spring reinforcing plate is connected to the inner panel, the inner panel overlap block and the taillight reinforcing plate respectively through the welding edge.

[0021] Optionally, a hinge reinforcement plate is provided on the inner panel of the rear door, the hinge reinforcement plate is provided with hinge mounting holes, and the hinge reinforcement plate is provided with at least a partial welded edge in the circumferential direction, the hinge reinforcement plate being connected to the inner panel through the welded edge.

[0022] This application also provides a vehicle, the vehicle including: a tailgate as described above.

[0023] As can be seen from the above, the bracket, tailgate, and vehicle for the through-type taillight box provided in this application have the following advantages compared with the prior art: The bracket has a compact structure, high strength, and light weight. It connects the outer panel and inner panel of the tailgate and spans the recessed area of ​​the taillight box, forming a continuous force transmission path. This compensates for the structural strength of the recessed area of ​​the taillight box and avoids bending deformation caused by the concave arc through the vehicle, especially the bending deformation of the taillight box caused by the large and deep concave arc and the weight of the taillight. This improves the upper and lower bending resistance of the taillight box and strengthens the bending resistance of the taillight box. Attached Figure Description

[0024] The above features and technical advantages of this application will become clearer and easier to understand from the following description of its embodiments in conjunction with the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of a bracket for a through-type taillight box used in a specific embodiment of this application;

[0026] Figure 2 For including Figure 1 The diagram shows the assembly structure of the rear door of the bracket shown.

[0027] Figure 3 for Figure 2 A schematic diagram of the structure of the inner panel of the rear door is shown.

[0028] Figure 4 for Figure 2 The diagram shows the structure of the outer panel of the rear tailgate.

[0029] Figure 5 for Figure 4 The diagram shows the structure of the upper outer panel and the lower outer panel of the tailgate.

[0030] Figure 6 for Figure 2 The diagram shows the connection between the bracket and the inner plate overlap block;

[0031] Figure 7 for Figure 2 The diagram shows the structure of the inner panel overlap block;

[0032] Figure 8 for Figure 3 The diagram shows the structure of the lock reinforcement plate.

[0033] Figure 9 for Figure 3 The diagram shows the structure of the taillight reinforcement plate.

[0034] Figure 10 for Figure 3 The diagram shows the connection between the gas spring reinforcing plate and the inner plate overlap block.

[0035] Figure 11 for Figure 10 The diagram shows the structure of the gas spring reinforcement plate.

[0036] Figure 12 for Figure 3 The schematic diagram of the hinge reinforcement plate shown is shown.

[0037] The attached figures are labeled as follows:

[0038] 1. Inner panel 2. Inner panel overlap block 3. Bracket 4. Taillight reinforcement plate 5. Hinge reinforcement plate 6. Wiper reinforcement plate 7. Gas spring reinforcement plate 8. Lock reinforcement plate 9. Support leg 11. Welded edge corner 12. Inner panel weight reduction hole 13. First vertical rib 14. Hinge mounting surface 15. Reinforcing rib 7-1, R-angle structure 2-1, First horizontal rib 17. Upper outer panel 18. Lower outer panel 19. Upper outer panel welding area 20. Lower outer panel welding area 22. Second vertical rib 12-1, Outer panel weight reduction hole 23. Hinge mounting hole 24. Second horizontal rib 25. Fourth welded edge 2 6. Third vertical rib 27. First welded edge 28. Main body side flange 29. Vertical glue groove 30. Lower support leg 30-1. Lower support leg reinforcing rib 31. Rear support leg 32. Rear support leg side flange 12-2. First weight reduction hole 33. Gas spring mounting hole 34. Taillight overlapping ear 35. Vertical welded edge 36. Third welded edge 37. Taillight mounting hole 12-3. Second weight reduction hole 12-4. Through rib 38. Second welded edge 39. Lock side flange 40. Lock mounting hole 41. Lock lower flange 88. Lock mounting surface 42. Overlap end 43. Side edge 44. Clearance groove. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0040] Figure 1 This is a schematic diagram of a bracket for a through-type taillight box used in a specific embodiment of this application; Figure 2 For including Figure 1 The diagram shows the assembly structure of the rear door of the bracket shown. Figure 3 for Figure 2 A schematic diagram of the structure of the inner panel of the rear door is shown. Figure 4 for Figure 2 The diagram shows the structure of the outer panel of the rear tailgate. Figure 5 for Figure 4The diagram shows the structure of the upper and lower outer panels of the tailgate; as shown. Figures 1 to 5 As shown, the bracket for the through-type taillight box (hereinafter referred to as the bracket) includes a bracket body, a first support part, a second support part and a third support part.

[0041] The bracket includes a bracket body, a first support part, a second support part, and a third support part. The first support part extends from the top of the bracket body, the second support part extends from both opposite sides of the bracket body, and the third support part extends from the bottom of the second support part. The first support part, the second support part, and the third support part are respectively located on opposite sides of the recessed area of ​​the taillight box. The first support part and the second support part are respectively connected to the outer panel and the inner panel of the tailgate, and the third support part is used to connect to the lock mounting surface.

[0042] Bracket 3 can be fitted to both split taillight tailgate structures and continuous taillight tailgate structures. The recessed area of ​​the taillight box will create an arc groove on the outer tailgate panel (as in the split taillight tailgate structure), or it may cut the outer tailgate panel in half at the middle (as in the continuous taillight tailgate structure), making the upper and lower rigidity of the tailgate relatively continuous or discontinuous. This can cause bending deformation at the taillight box location, severely affecting the durability and NVH performance of the taillight box area. By placing the bracket between the inner and outer tailgate panels, spanning the recessed area of ​​the taillight box, and connecting the outer and inner tailgate panels through bracket 3, a continuous force transmission path is formed.

[0043] The aforementioned bracket is ingeniously designed, high in strength, and lightweight. It connects the outer and inner panels of the tailgate via bracket 3 and spans the recessed area of ​​the taillight box, forming a continuous force transmission path. This compensates for the structural strength of the recessed area of ​​the taillight box and avoids bending deformation caused by the concave arc running through the vehicle, especially the bending deformation of the taillight box caused by the large and deep concave arc and the weight of the taillight. This improves the upper and lower bending resistance of the taillight box and strengthens the bending resistance performance of the taillight box.

[0044] Optionally, the first support includes two first protruding structures symmetrically arranged along the main body of the bracket. The first protruding structures are located on the top end face of the main body of the bracket and extend away from the main body. The free end of each first protruding structure has a first welding edge 27. The first protruding structure is connected to the outer panel of the rear door, typically welded to the recessed area of ​​the taillight box via the first welding edge 27. The two first protruding structures are arranged opposite each other and spaced apart, with a clearance area between them. Using the above-mentioned first protruding structures, the two first protruding structures can achieve a stable supporting function while meeting the requirements for lightweight design.

[0045] In one embodiment of this application, the first protrusion structure is approximately square, and is substantially flush with or slightly angled to the support body. Two first protrusion structures are spaced apart from each other on the top end face of the support body, and the free end of the first protrusion structure is provided with a first welding edge 27, which has a welding surface capable of being welded to the window frame reinforcing plate. A reinforcing structure may also be provided on the first protrusion structure to improve the supporting strength of the first support portion.

[0046] Optionally, the second support includes two second protruding structures symmetrically arranged along the main body of the support frame. These second protruding structures are located on the side of the main body near the bottom and extend away from the main body. The second protruding structures are connected to the inner panel of the tailgate, for example, by a reinforcing rib 15. Typically, the second protruding structures overlap the reinforcing rib 15 and are welded together. The two second protruding structures are positioned opposite each other and spaced apart, respectively located on opposite sides of the main body near the bottom. Using these second protruding structures, a stable supporting function is achieved, forming a continuous transmission path that transfers the force on the outer panel of the tailgate to the inner panel of the tailgate through the support frame 3 and the reinforcing rib 15.

[0047] In one embodiment of this application, there may be a slight angle. The second protruding structure (as shown in the lower support leg 30) is approximately trapezoidal, and the width of the second protruding structure may be gradually increasing from far to near towards the support body. The second protruding structure forms an obtuse angle with the support body to fully utilize the space between the inner and outer panels of the rear door, forming an effective connection.

[0048] Optionally, the third support includes two third protruding structures symmetrically arranged along the main body of the bracket. The third protruding structures are located at the bottom end of the second protruding structures and extend away from the second protruding structures and the main body of the bracket. The third protruding structures are connected to the inner panel of the tailgate, for example, the lock mounting surface 88. Typically, the third protruding structures overlap the vertical surface of the lock mounting surface 88 and are welded together. The two third protruding structures are arranged opposite each other and spaced apart, respectively located at the bottom end of the second protruding structures. Using the aforementioned third protruding structures, the two third protruding structures can achieve a stable supporting effect, forming a continuous transmission path to transmit the force on the outer panel of the tailgate to the inner panel of the tailgate through the bracket 3 and the lock reinforcing plate 8.

[0049] In one embodiment of this application, the third protruding structure (such as the rear support leg 31) is approximately inverted L-shaped. The top end of the third protruding structure is located on the bottom end of the second protruding structure and extends away from the support body and the second protruding structure. The vertical section of the third protruding structure is substantially flush with the second protruding structure, and the horizontal section of the third protruding structure forms an angle with the second protruding structure, so as to fully utilize the space between the inner and outer panels of the rear tailgate and form an effective connection.

[0050] The aforementioned first, second, and third protruding structures are all welded to the mating parts. Each welding area is equipped with a reinforcing groove, which strengthens the welding area and greatly compensates for the stiffness discontinuity caused by the recessed area of ​​the taillight box. This ensures the continuity of the stiffness force transmission path from the window frame to the side beam and lock position, enhances the bending resistance of the taillight box, and improves the overall bending and torsional resistance of the tailgate. Bracket 3 is highly versatile and adaptable to various through-type tailgates requiring improved durability and NVH performance. It not only offers good performance but also boasts a high degree of lightweight design. It balances traditional durability and NVH requirements while significantly reducing manufacturing complexity, making it easy to manufacture and mass-produce, and highly versatile.

[0051] To enhance structural strength and achieve effective connection, optionally, flanges are provided on at least some edges of the bracket body, the first protruding structure, the second protruding structure, and the third protruding structure. By providing flanges, the bending resistance of the bracket 3 is enhanced, which can largely compensate for the poor bending performance and stiffness discontinuity caused by the recess of the through-type taillight box and the weight of the reinforcing plate.

[0052] In one embodiment of this application, the flange locations include, but are not limited to: the opposite two sides of the support body, the top of the support body, the bottom of the support body, the opposite two sides of the first support portion, the adjacent two sides of the second support portion, and the adjacent two sides of the third support portion (i.e., the rear leg side flange 32). Specifically, the left side of the support body (i.e., the body side flange 28) forms a smooth transition integral structure with the left side of the first protrusion structure on the left and the top side of the second protrusion structure on the left; the right side of the support body (i.e., the side flange 28) forms a smooth transition integral structure with the right side of the first protrusion structure on the right and the top side of the second protrusion structure on the right. These two flange structures enhance the lateral stiffness of the support body. The right side of the first protrusion structure on the left, the top of the support body, and the left side of the first protrusion structure on the right form a smooth transition integral structure. There is a notch between the adjacent two sides of the second protrusion structure, and the adjacent two sides of the third protrusion structure (the rear leg side flange 32) can form a smooth transition integral structure.

[0053] Optionally, at least one of the support body, the first protruding structure, the second protruding structure, and the third protruding structure is provided with a first weight-reducing hole 12-2, and a first reinforcing rib is provided near the edge of the first weight-reducing hole 12-2. The first reinforcing rib encloses and forms a closed area, and the first weight-reducing hole 12-2 is located within the closed area. This satisfies both the lightweight requirement and the structural support strength requirement.

[0054] In one embodiment of this application, a plurality of first weight-reducing holes 12-2 are evenly distributed on the support body. For example, the support body has 2 rows × 2 columns of first weight-reducing holes 12-2 evenly distributed, and a first reinforcing rib is provided around the plurality of first weight-reducing holes 12-2 in the same column.

[0055] In one embodiment of this application, a vertical glue groove 29 is provided on at least one side of the first weight-reducing hole 12-2. For example, a vertical glue groove 29 is provided on the left side of the first weight-reducing hole 12-2 in the first column and on the right side of the first weight-reducing hole 12-2 in the second column, and a vertical glue groove 29 is also provided at the center position between the two columns. The vertical glue groove 29 is used to hold glue, enhance the connection between the bracket body and the rear door outer panel (lower outer panel 17), and improve the dent resistance of the rear door outer panel.

[0056] In one embodiment of this application, the first and third protruding structures do not have the first weight-reducing hole 12-2 due to factors such as their placement, support strength, and structural area. The second protruding structure has the first weight-reducing hole 12-2, and a lower support leg reinforcing rib 30-1 is provided around the first weight-reducing hole 12-2. The lower support leg reinforcing rib 30-1 increases the support strength of the lower support leg 30. While reducing weight through the first weight-reducing hole 12-2, the support structure strengthens using the first reinforcing rib and the lower support leg reinforcing rib 30-1.

[0057] This application also provides a tailgate, including: an inner tailgate panel, an outer tailgate panel, two taillight reinforcement plates 4, and a bracket 3 for a through-type taillight box as described above.

[0058] The tailgate includes: an inner tailgate panel, an outer tailgate panel, two taillight reinforcement plates 4, and a bracket 3. The inner tailgate panel has a lock mounting surface 88. The outer tailgate panel covers the inner tailgate panel and has a taillight box recessed area. The two taillight reinforcement plates 4 are connected to the outer tailgate panel and are respectively located at opposite ends of the taillight box recessed area. A first support portion, a second support portion, and a third support portion extend from the main body of the bracket. The first support portion, the second support portion, and the third support portion are respectively located on opposite sides of the taillight box recessed area. The first support portion and the second support portion are respectively connected to the outer tailgate panel and the inner tailgate panel, and the third support portion is used to connect to the lock mounting surface.

[0059] During assembly, two taillight reinforcement plates 4 are respectively set at opposite ends of the taillight box recess area to provide support for the tailgate outer panel; bracket 3 is arranged in the middle of the taillight box recess area at a weaker position, and the first support part, the second support part, and the third support part are respectively located on opposite sides of the taillight box recess area; the first support part and the second support part are respectively connected to the tailgate outer panel and the tailgate inner panel, and the third support part is used to connect with the lock mounting surface.

[0060] The aforementioned tailgate design, with bracket 3 connecting the outer and inner tailgate panels and spanning the taillight box recess, creates a continuous force transmission path between them. This compensates for structural strength issues in the taillight box recess, mitigating the bending deformation caused by the deep concave arc running through the vehicle and the weight of the taillights. This improves the taillight box's vertical bending resistance and enhances its overall bending performance. The tailgate design meets durability and NVH performance requirements while also being lightweight, easy to manufacture, cost-effective, and suitable for mass production, offering strong versatility.

[0061] Figure 6 for Figure 2 The diagram shows the connection between the bracket and the inner plate overlap block; Figure 7 for Figure 2 The diagram shows the structure of the inner panel overlap block; Figure 8 for Figure 3 The diagram shows the structure of the lock reinforcement plate; as shown. Figures 6 to 8 As shown, the inner panel of the rear door includes an inner panel 1, an inner panel overlap block 2, and a reinforcing rib 15.

[0062] Optionally, the rear door inner panel includes an inner panel 1, an inner panel overlapping block 2, and a reinforcing rib 15. The two opposite ends of the inner panel overlapping block 2 are respectively connected to the opposite side walls of the inner panel 1. The reinforcing rib 15 is arranged opposite to the inner panel overlapping block 2, and at least one of the opposite ends and between the two ends is connected to the inner panel 1. The inner panel overlapping block 2 and the reinforcing rib 15 can be closed to form a closed structure. A lock reinforcing plate 8 is provided on the reinforcing rib 15, and a lock mounting surface 88 is provided on the lock reinforcing plate 8. The bracket 3 is arranged in the middle of the recessed area of ​​the taillight box, which is relatively weak. The bracket 3 is welded to the inner panel overlapping block 2. The lower support leg 30 of the bracket 3 is arranged on the reinforcing rib 15, and the rear support leg 31 of the bracket 3 is arranged on the vertical surface of the lock mounting surface 88. Using the aforementioned rear tailgate inner panel, the bracket 3 is erected between the inner panel 1 and the inner panel block 2 to compensate for the structural strength of the taillight box. This is a good way to improve structural performance. The bracket 3 has a simple structure, is lightweight, has low manufacturing difficulty, and improves the overall bending and torsional resistance of the rear tailgate.

[0063] In one embodiment of this application, the inner panel 1 is stamped and is not prone to cracking. The cross-section of the reinforcing rib 15 is V-shaped, with the opening side of the reinforcing rib 15 facing the inner panel overlap block 2; the protruding end of the reinforcing rib 15 and the opposite ends of the opening are both connected to the inner panel 1; typically, the protruding end of the reinforcing rib 15 is installed near the lock reinforcing plate 8, and the opposite ends of the opening of the reinforcing rib 15 are installed near the welded edge corner 11 below the window frame; the reinforcing rib 15 spans the recessed area of ​​the taillight box.

[0064] The window frame reinforcing plate overlaps laterally with the reinforcing rib 15, and the upper and lower welded edges of the window frame cross the welded edge corner 11, thus ensuring the overall bending and torsional resistance of the rear door. The reinforcing rib 15 has a certain width and height and is manufactured using a stamping process, which significantly improves the structural performance of the rear door's inner panel. The lower support leg 30 is supported on the reinforcing rib 15, for example, by welding the two together. The welding area has reinforcing grooves to strengthen the welding area.

[0065] In one embodiment of this application, the inner panel overlap block 2 has an approximately trapezoidal structure. The upper part of the inner panel overlap block 2 is a window frame, and the lower middle part is a reinforcing rib 15. The end or near the end of the inner panel overlap block 2 is connected to the reinforcing rib 15. A first transverse rib 2-1 is provided on the inner panel overlap block 2. The first transverse rib 2-1 can close the opening of the reinforcing rib 15, forming a relatively closed structure, thus strengthening the overall torsional resistance of the rear door. The first transverse rib 2-1 can improve the local modal performance of the inner panel 1, providing some support to the recessed area of ​​the taillight box and reinforcing weak areas. Multiple spaced first vertical ribs 13 can be arranged on the first transverse rib 2-1 of the inner panel overlap block 2 to strengthen the structural strength of the inner panel overlap block 2 and significantly improve the performance of the rear door inner panel. The two opposite ends of the inner panel overlap block 2 are overlap ends 42 (with welding surfaces). The overlap ends 42 are connected to the gas spring reinforcing plate 7 (such as the vertical welding edge 35), enhancing the support strength of the overlap ends 42. The side edges 43 (with welding surfaces) on both sides of the inner panel overlap block 2 are connected to the edge of the reinforcing rib 15 to form a closed connection. An avoidance groove 44 is provided in the middle of the bottom end of the inner panel overlap block 2. The avoidance groove 44 is connected to the welding edge of the taillight box recess area, which strengthens the structural performance of the taillight box recess area, improves the bending resistance, and meets the usage requirements of the tailgate.

[0066] In one embodiment of this application, the lock reinforcement plate 8 adopts a non-planar structure, such as a boss structure. The lock mounting surface 88 is the side of the lock reinforcement plate facing the outer panel of the rear door, and the rear support leg 31 is connected to the vertical surface of the lock mounting surface 88. The lock reinforcement plate 8 is welded to the reinforcing rib 15, which not only improves the rigidity of the connection point but also significantly improves the bending resistance. Lock side flanges 39 are provided on opposite sides of the lock reinforcement plate 8, a second welding edge 38 extending upward is provided at the top of the lock reinforcement plate 8, and a lock lower flange 41 extending downward is provided at the bottom of the lock reinforcement plate 8. The lock lower flange 41 is used for bonding with the inner panel 1. Lock mounting holes 40 are provided on the lock reinforcement plate 8. The lock reinforcement plate 8 significantly improves the overall performance of the rear door.

[0067] In one embodiment of this application, the bracket 3 is located between the inner panel 1 and the inner panel overlapping block 2. The first welded edge is connected to the outer panel of the rear door, and the first protruding structure is welded to the lower pressing surface of the inner panel overlapping block 2. The bracket 3 achieves a transition connection between the inner panel and the outer panel of the rear door. The vertical glue groove increases the reliability of the connection between the bracket body and the outer panel of the rear door, and also enhances the anti-dent performance of the outer panel of the rear door. The lower support leg 30 and the rear support leg 31 are welded to the reinforcing rib 15 and the lock mounting surface 88. Recessed ribs are provided around the welding area to increase the tensile strength of the welding area. The ingenious cooperation of the reinforcing rib 15, the inner panel overlapping block 2 and the bracket 3 can greatly compensate for the stiffness discontinuity problem caused by the recess of the through-type taillight box, ensure the continuity of the stiffness force transmission path from the window frame to the side beam and the lock position, and improve the overall bending and torsional resistance of the rear door. The tailgate structure is compact, with multiple weight-reduction holes, resulting in only a slight increase in weight. This balances the weight gain from the widening and heightening of the reinforcing rib 15, providing good bending and torsional resistance and high material utilization. It solves both the performance issues of the continuous taillight tailgate and meets lightweight requirements. Bracket 3 can be used for the central structure of the deep concave arc of the continuous taillight tailgate on different vehicle models, solving the performance issues at the taillight area and demonstrating strong versatility.

[0068] Figure 9 for Figure 3 The diagram shows the structure of the taillight reinforcement plate; as shown. Figure 9 As shown, a taillight connecting plate 4 is provided on the outer panel of the rear door.

[0069] Optionally, the tailgate outer panel includes an upper outer panel 17 and a lower outer panel 18 separated by a taillight box recessed area. The taillight box recessed area includes an upper outer panel welding area 19 and a lower outer panel welding area 20. Welding points and bosses are arranged on the upper outer panel welding area 19 and the lower outer panel welding area 20, as well as a taillight connecting plate 4, which enhances the continuity of the through-type taillight recessed area.

[0070] During assembly, the recessed area of ​​the taillight box is positioned opposite to the inner panel overlap block 2, the reinforcing rib 15 spans the recessed area of ​​the taillight box, the opposite sides of the taillight reinforcing plate 4 are connected to the upper outer plate 17 and the lower outer plate 18 respectively, the bracket 3 is positioned between the inner plate 1 and the reinforcing rib 15, the first support part is connected to the recessed area of ​​the taillight box, the second support part is connected to the reinforcing rib 15, and the third support part is connected to the lock reinforcing plate 8.

[0071] In one embodiment of this application, the reinforcing rib 15 and the side beam overlap to form a R-angle structure 7-1 with a height difference. Multiple inner panel weight reduction holes 12 are arranged on the inner panel 1. Support legs 9 extend from each weight reduction hole near the lock mounting surface 88. The support legs 9 are glued to the lower outer panel 18 and support the lower outer panel 18, improving the resistance to dents. Under the premise of ensuring that the rigidity is not reduced, the weight of the rear door is greatly reduced, which meets the requirements of lightweighting.

[0072] In one embodiment of this application, the upper outer panel 17 has a window frame, which is disposed opposite to the window frame of the inner panel 1. Weight reduction holes 12-1 are provided on the opposite side edges of the window frame to achieve the purpose of weight reduction. A hinge mounting surface 14 is provided on the opposite upper part of the window frame, and the hinge mounting surface 14 is configured as a boss shape.

[0073] In one embodiment of this application, a taillight reinforcing plate 4 is provided at each of the opposite ends of the taillight box recessed area. The taillight reinforcing plate 4 has a U-shaped structure, and the opposite sides of the U-shaped structure are welded to the opposite sides of the taillight box recessed area. Taillight mounting holes 37 are arranged on the taillight reinforcing plate 4, and second vertical ribs 22 are arranged on the side of the taillight reinforcing plate 4 to enhance the rigidity near the mounting point and the bending resistance of the taillight box recessed area.

[0074] Figure 10 for Figure 3 The diagram shows the connection between the gas spring reinforcing plate and the inner plate overlap block. Figure 11 for Figure 10 The diagram shows the structure of the gas spring reinforcing plate; as shown. Figure 10 and Figure 11 As shown, a gas spring reinforcing plate 7 is installed on the inner panel of the rear door.

[0075] Optionally, a gas spring reinforcing plate 7 is provided on the inner panel of the tailgate. The gas spring reinforcing plate 7 has gas spring mounting holes 33. At least partially, welding edges are provided in the circumferential direction of the gas spring reinforcing plate 7. The gas spring reinforcing plate 7 is connected to the inner panel 1, the inner panel overlapping block 2, and the taillight reinforcing plate 4 through the welding edges. Typically, one side of the gas spring reinforcing plate 7 is welded to the inner panel 1 and the inner panel overlapping block 2, and the other side of the gas spring reinforcing plate 7 is welded to the taillight reinforcing plate 4. Through multiple overlapping points, the connection performance problem at different locations is solved.

[0076] In one embodiment of this application, the upper end of the gas spring reinforcing plate 7 extends across the lower R-corner structure 7-1 of the window frame, and the lower end extends across the taillight box section, effectively compensating for the stiffness of the rear door at the taillight box. A through rib is provided vertically in the middle, and three weight-reducing holes with protrusions are provided on the rib to ensure continuous vertical stiffness while minimizing weight. The gas spring bracket has ear-like overlaps on the inner panel overlap block to avoid fatigue and durability problems caused by improper local connections later.

[0077] The gas spring reinforcing plate 7 has an approximately U-shaped structure. A through rib 12-4 is provided on the middle plate of the gas spring reinforcing plate 7. Multiple second weight-reducing holes 12-3 are provided on the through rib 12-4. Each second weight-reducing hole 12-3 is equipped with a boss, which minimizes weight while ensuring the continuity of the upper and lower rigidity. The opposite side walls of the gas spring reinforcing plate 7 are provided with welded edges. The right side has two third welded edges 36 and a vertical welded edge 35. The third welded edges 36 are used for welding to the inner panel 1. The corner of the larger third welded edge 36 on the upper side extends into the vertical welded edge 35, which connects to the inner panel overlapping block 2. The vertical welded edge 35 supports the inner panel overlapping block 2 on one hand and closes the lower welded edge corner 11 on the other hand, which enhances the overall bending and torsional resistance of the tailgate. A gas spring mounting hole 33 is provided on the left welding edge, and a taillight overlap ear 34 is provided on the lower side. The taillight overlap ear 34 is provided with a taillight mounting hole 37. The taillight overlap ear 34 is connected to the taillight reinforcing plate 4. The taillight overlap ear 34 can increase the local rigidity of the taillight reinforcing plate 4, while solving the fatigue and durability problem caused by improper overlap of the tailgate at this point.

[0078] Figure 12 for Figure 3 The schematic diagram of the hinge reinforcement plate shown is as follows; Figure 12 As shown, a hinge reinforcement plate 5 is provided on the inner panel of the rear door.

[0079] Optionally, a hinge reinforcement plate 5 is provided on the inner panel of the tailgate. The hinge reinforcement plate 5 has hinge mounting holes 23, and at least partially has a welded edge in the circumferential direction. The hinge reinforcement plate 5 is connected to the inner panel 1 through the welded edge. The hinge reinforcement plate 5 enhances the torsional and bending resistance of the tailgate while significantly improving the stiffness of the local mounting points.

[0080] In one embodiment of this application, hinge reinforcement plates 5 are installed at the corner of the inner panel, and two hinge reinforcement plates 5 are symmetrically arranged along the wiper reinforcement plate 6. The wiper reinforcement plate 6 has a recessed structure and multiple weight-reducing holes, which helps to improve the rigidity of the mounting point and meets the requirements of lightweighting. The hinge reinforcement plate 5 is provided with hinge mounting holes 23, and the hinge reinforcement plate 5 is provided with a second transverse rib 24 and multiple third vertical ribs 26. The second transverse rib 24 is used to increase the cavity area of ​​the window frame corner, and the third vertical ribs 26 overlap with the fourth welding edges 24 on both sides. Weight-reducing holes are provided between adjacent third vertical ribs 26. The edge of the hinge reinforcement plate 5 is provided with a fourth welding edge 24 and multiple welding points, which improves the rigidity of the hinge mounting point and also improves the bending and torsional resistance of the corner.

[0081] This application also provides a vehicle, which includes: a tailgate as described above.

[0082] As can be seen from the above description and practice, the bracket, tailgate, and vehicle for the through-type taillight box provided in this application have the following advantages compared with the prior art: The bracket has a compact structure, high strength, and light weight. It connects the outer panel and inner panel of the tailgate and spans the recessed area of ​​the taillight box, forming a continuous force transmission path. This compensates for the structural strength of the recessed area of ​​the taillight box and avoids bending deformation caused by the concave arc through the vehicle, especially the bending deformation of the taillight box caused by the large and deep concave arc and the weight of the taillight. It improves the upper and lower bending resistance of the taillight box and strengthens the bending resistance of the taillight box.

[0083] Those skilled in the art should understand that the above description is merely a specific embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the scope of this application should be included within the protection scope of this application.

Claims

1. A rear door, characterized in that, include: The rear tailgate inner panel has a lock mounting surface. The tailgate outer panel covers the tailgate inner panel, and a taillight box recessed area is provided on the tailgate outer panel; Two taillight reinforcement plates, both of which are connected to the outer panel of the tailgate and are respectively located at opposite ends of the recessed area of ​​the taillight box; A bracket for a through-type taillight box includes: a bracket body, a first support portion, a second support portion, and a third support portion. The first support portion, the second support portion, and the third support portion extend from the bracket body, respectively. The first support portion, the second support portion, and the third support portion are located on opposite sides of the recessed area of ​​the taillight box. The first support portion extends from the top of the bracket body, the second support portion extends from both opposite sides of the bracket body, and the third support portion extends from the bottom of the second support portion. The first support portion and the second support portion are respectively connected to the outer panel of the tailgate and the inner panel of the tailgate, and the third support portion is used to connect to the lock mounting surface. The first support portion includes two first protruding structures symmetrically arranged along the main body of the support. The first protruding structures are disposed on the top end face of the main body of the support and extend toward the side away from the main body of the support. The free end of the first protruding structure is provided with a first welding edge. The second support includes two second protruding structures symmetrically arranged along the main body of the support. The second protruding structures are disposed on the side of the main body of the support near the bottom end and extend away from the main body of the support. The third support includes two third protrusion structures symmetrically arranged along the main body of the support. The third protrusion structure is disposed on the bottom end of the second protrusion structure and extends away from the second protrusion structure and the main body of the support. At least some edges of the bracket body, the first protruding structure, the second protruding structure, and the third protruding structure are provided with flanges; At least one of the support body, the first protrusion structure, the second protrusion structure and the third protrusion structure is provided with a first weight-reducing hole, and a first reinforcing rib is provided near the edge of the first weight-reducing hole; The rear door inner panel includes an inner panel, an inner panel overlap block, and a reinforcing rib. The two opposite ends of the inner panel overlap block are respectively connected to the opposite side walls of the inner panel. The reinforcing rib is disposed opposite to the inner panel overlap block, and at least one of its opposite ends and between the two ends is connected to the inner panel. The inner panel overlap block and the reinforcing rib can be closed to form a closed structure. A lock reinforcing plate is provided on the reinforcing rib, and the lock mounting surface is disposed on the lock reinforcing plate. The rear tailgate outer panel includes an upper outer panel and a lower outer panel separated by the taillight box recessed area. The taillight box recessed area is disposed opposite to the inner panel overlap block. The reinforcing rib crosses the taillight box recessed area. The opposite sides of the taillight reinforcing plate are respectively connected to the upper outer panel and the lower outer panel. The bracket is disposed between the inner panel and the reinforcing rib. The first support part is connected to the taillight box recessed area, the second support part is connected to the reinforcing rib, and the third support part is connected to the lock reinforcing plate.

2. The rear door according to claim 1, characterized in that: A gas spring reinforcing plate is provided on the inner panel of the rear door. The gas spring reinforcing plate is provided with gas spring mounting holes. At least partially, a welding edge is provided on the circumferential direction of the gas spring reinforcing plate. The gas spring reinforcing plate is connected to the inner panel, the inner panel overlap block, and the taillight reinforcing plate through the welding edge.

3. The rear door according to claim 2, characterized in that: A hinge reinforcement plate is provided on the inner panel of the rear door. The hinge reinforcement plate is provided with hinge mounting holes. The hinge reinforcement plate is provided with welded edges in at least a partial part of the circumferential direction. The hinge reinforcement plate is connected to the inner panel through the welded edges.

4. A vehicle, characterized in that, The vehicle includes a tailgate as described in any one of claims 1 to 3.

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