Back door assembly and vehicle

Abstract

The application discloses a back door assembly and a vehicle, and relates to the technical field of vehicles, and the back door assembly comprises a back door plate, the back door plate comprises an inner plate, an outer plate and a sealing plate, the inner plate and the outer plate enclose a cavity, a lamp installation space recessed towards the cavity is formed on the side surface of the outer plate away from the inner plate, the inner plate is provided with a avoiding gap avoiding the lamp installation space, and the sealing plate is arranged at the avoiding gap and is in sealing connection with the inner plate and the outer plate. The technical scheme of the application improves the sealing performance between the inner plate and the outer plate.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to a tailgate assembly and a vehicle. Background Technology

[0002] With the continuous development of the automotive industry and the increasing demands of consumers for vehicle exterior styling, continuous taillights, with their unique visual effects and technological feel, have become one of the mainstream trends in current automotive design. Continuous taillights typically extend along the width of the vehicle and are fixedly installed on the outer side of the tailgate panel.

[0003] Because the taillight extends horizontally along the tailgate, its two ends are located at the connection between the inner and outer tailgate panels. There is often a large gap between the inner and outer tailgate panels. Due to the limitations of the existing sealing structure, it is difficult to form a continuous and reliable sealing surface, which has an adverse effect on the sealing performance. Summary of the Invention

[0004] The main objective of this invention is to provide a tailgate assembly and vehicle, which aims to solve at least one of the aforementioned technical problems.

[0005] To achieve the above objectives, this invention provides a rear door assembly, which includes a rear door panel, an inner panel, an outer panel, and a sealing plate. The inner panel and the outer panel form a cavity. The outer panel has a recessed lamp mounting space on its side facing away from the inner panel. The inner panel has a clearance notch to avoid the lamp mounting space. The sealing plate is disposed at the clearance notch and seals the inner panel and the outer panel.

[0006] To achieve the above objectives, embodiments of the present invention provide a vehicle comprising the aforementioned tailgate assembly.

[0007] The technical solution of this application features a recessed mounting space for the lamps facing the inner panel. This utilizes the cavity between the inner and outer panels to house the lamps within this space, reducing the lamps' protrusion from the outer panel and minimizing wind resistance and space occupation. Simultaneously, the direct matching installation of the through-light with the outer panel eliminates accumulated tolerances between the plastic trim, the tailgate sheet metal, and the through-light during assembly, reducing mismatch issues and improving the uniformity of the gap between the through-light and the outer panel, resulting in a cleaner and more aesthetically pleasing rear appearance. Furthermore, the elimination of separate plastic trim eliminates warping issues caused by loosening or thermal expansion and contraction, preventing abnormal noises from friction between the plastic trim and the tailgate during vehicle operation, thus enhancing the user's driving experience. During the assembly of the inner and outer panels, a sealing plate is installed at the clearance opening to seal it, improving the sealing of the connection between the inner and outer panels and reducing wind noise. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the front structure of an embodiment of the rear door assembly of the present invention. Figure 1 ; Figure 2 for Figure 1 A magnified schematic diagram of a portion of the structure in section D; Figure 3 This is a schematic diagram of the cross-sectional structure of the outer panel in an embodiment of the rear door assembly of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the cross-sectional structure of the outer panel in an embodiment of the rear door assembly of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the cross-sectional structure of the outer panel in an embodiment of the rear door assembly of the present invention. Figure 3 ; Figure 6 This is a schematic diagram of the rear structure of an embodiment of the rear door assembly of the present invention; Figure 7 This is a schematic diagram of the front structure of an embodiment of the rear door assembly of the present invention. Figure 2 The outer panel has been concealed. Figure 8 for Figure 7 A partially enlarged structural diagram of section E in the middle; Figure 9 for Figure 7 A partially enlarged structural diagram of section F in the middle; Figure 10 for Figure 7 A partially enlarged structural diagram of section G in the middle; Figure 11 This is a schematic diagram of the front structure of an embodiment of the rear door assembly of the present invention. Figure 3 The outer panel has been concealed. Figure 12 This is a partial structural diagram of an embodiment of the rear door assembly of the present invention. Figure 1 ; Figure 13 This is a schematic diagram of the sealing plate in an embodiment of the rear door assembly of the present invention; Figure 14 This is a partial structural diagram of an embodiment of the rear door assembly of the present invention. Figure 2 ; Figure 15This is a schematic diagram of the structure of the lamp decorative panel in an embodiment of the rear door assembly of the present invention; Figure 16 This is a schematic diagram of the structure of the vehicle body in an embodiment of the present invention; Figure 17 This is a schematic diagram of an angle structure of an embodiment of the rear door assembly of the present invention; Figure 18 This is a partial structural schematic diagram of an embodiment of the rear door assembly of the present invention, wherein the decorative panel has been hidden; Figure 19 for Figure 18 A magnified schematic diagram of part A in the middle section; Figure 20 for Figure 18 A partially enlarged structural diagram of section B; Figure 21 This is a schematic diagram of another angle of the rear door assembly embodiment of the present invention; Figure 22 for Figure 21 A magnified schematic diagram of part C in the middle section; Figure 23 This is a cross-sectional structural schematic diagram of an embodiment of the rear door assembly of the present invention; Figure 24 This is a partial structural diagram of an embodiment of the rear door assembly of the present invention. Figure 3 ; Figure 25 This is another angled structural schematic diagram of an embodiment of the rear door assembly of the present invention; Figure 26 This is a schematic diagram of the hinge structure in an embodiment of the vehicle body of the present invention.

[0010] Explanation of icon numbers: 1. Vehicle body; 11. Receiving cavity; 12. Opening; 13. Mounting surface; 131. First mounting hole; 14. Limiting surface; 2. Hinge; 21. Fixed arm; 22. Rotating arm; 221. First sub-arm; 222. Second sub-arm; 223. Third sub-arm; 2231. Second mounting hole; 23. Locking element; 3. Rear door panel; 311. Sealing ring platform; 312. Recessed portion; 313. Clearance recess; 3131. First side wall; 3132. Second side wall; 314. Mounting part; 3141. Wiring notch; 31411. First notch; 31412. Second notch; 315. Mounting recess; 316. Mounting protrusion; 321. Wiring harness through hole; 322. Wiring harness assembly hole; 323. Wiring harness through hole; 324. Wiring harness assembly hole; 33. Outer panel; 331. Flanged edge; 332. Lighting fixture mounting space; 333. First outer sub-panel; 3331. First Section; 3332, Second Section; 334, Second Outer Sub-plate; 3341, Ninth Section; 3342, Tenth Section; 335, Third Outer Sub-plate; 3351, Third Section; 3352, Fourth Section; 3353, Fifth Section; 336, Fourth Outer Sub-plate; 3361, Assembly Hole; 3362, Sixth Section; 3363, Seventh Section; 3364, Eighth Section; 3365, Lamp Wire Through Hole; 3366, Lamp Mounting Hole; 337, Extension Section; 338, Light Outlet; 3391, First Connecting Ear; 3394, Fourth Connecting Ear; 3395, Vibration Damping Structure 34. Inner panel; 341. Clearance notch; 342. Inner panel body; 343. Support protrusion; 344. Outwardly turned part; 345. Weight reduction hole; 35. Conduit; 36. Sealing plate; 361. Main body; 3611. Support rod assembly hole; 362. Sealing part; 3621. First sealing sub-part; 3622. Second sealing sub-part; 3623. Third sealing sub-part; 3624. Clearance notch; 37. Lamp fixture panel; 371. First buckle; 372. Second buckle; 373. Abutment arm; 38. Reinforcing structure; 381. First step structure; 3811. First step section; 3812. Second step section; 3813. Recessed platform; 3814. Third step section; 382. Second step structure; 39. Reinforcing structure; 391. First reinforcing plate; 3911. First main body section; 3912. First reinforcing arm; 3913. Reinforcing vertical edge; 392. Reinforcing component; 393. Auxiliary adhesive; 394. Second reinforcing plate; 3941. First connecting part; 3942. Second connecting part; 395. Third reinforcing plate; 3951. Third main body section; 3952. Reinforcing side edge; 3953. Reinforcing folded edge; 4. Electrical module; 411. Electrical strut; 412. Stride wiring harness; 421. Spoiler; 422. Electrical components; 423. Spoiler wiring harness; 5. Rear door wiring harness; 6. Decorative panel.

[0011] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of the present invention.

[0013] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0014] Furthermore, in the embodiments of this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of the embodiments of this invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0015] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0016] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope required by the embodiments of the present invention.

[0017] This application discloses a tailgate assembly and a vehicle. It is understood that the tailgate assembly is applied to a vehicle and is a component of the vehicle. That is, the vehicle includes the tailgate assembly. Optionally, the tailgate assembly can be applied to an SUV or other types of vehicles.

[0018] Furthermore, the vehicle also includes a body body with a receiving cavity, commonly referred to as a trunk. The receiving cavity has an opening, and a tailgate assembly is rotatably positioned at the opening to open or close the receiving cavity.

[0019] Furthermore, the tailgate assembly and the vehicle body are connected by hinges. It can be understood that the tailgate assembly, the vehicle body, and the hinges together form the vehicle body, which is a major component of the vehicle.

[0020] Furthermore, the tailgate assembly includes a tailgate panel and multiple power modules located at different positions on the tailgate panel. In this embodiment, there may be three power modules: the first power module includes a spoiler, an electrical component mounted on the spoiler, and a spoiler wiring harness electrically connected to the electrical component; the second power module includes an electric strut and a strut wiring harness electrically connected to the electric strut; and the third power module includes a through-light and a through-light wiring harness electrically connected to the through-light. Of course, in other embodiments, the power modules may also include other electrical components.

[0021] Furthermore, the back panel includes an inner panel and an outer panel, which are arranged sequentially in the thickness direction of the back panel, fixedly connected at the periphery, and can cooperate to form a cavity in the middle.

[0022] Furthermore, the outer panel has a recessed mounting space for the luminaire on the side facing away from the inner panel, which can be used to install a through light. The inner panel has a clearance notch to avoid the luminaire mounting space, and the clearance notch is equipped with a sealing plate that seals the connection between the inner panel and the outer panel.

[0023] Furthermore, the inner plate is provided with a reinforcing structure, which includes a first step structure located on the inner side of the sealing ring platform and a second step structure located on the outer side of the sealing ring platform.

[0024] It should be noted that the tailgate assembly proposed in this application is a windshieldless tailgate, which can break free from the constraints of a rear window and allow for a purer and more dynamic tailgate structure design, meeting the higher aesthetic demands of mid-to-high-end models. Of course, in other embodiments, the tailgate assembly can also be a tailgate with a windshield, which will not be described in detail here.

[0025] Next, the structure and connection relationships of each of the above components will be introduced.

[0026] like Figures 1 to 4As shown, one embodiment of the present invention proposes a rear door assembly, which includes a rear door panel 3. The rear door panel 3 includes an inner panel 34 and an outer panel 33. It can be understood that the edges of the inner panel 34 and the outer panel 33 are fixedly connected together, and a cavity can be formed in the middle. The outer panel 33 includes a first outer sub-panel 333 and a second outer sub-panel 334. That is, the first outer sub-panel 333 and the second outer sub-panel 334 are separately assembled to form the outer panel 33. The first outer sub-panel 333 and the second outer sub-panel 334 define the light outlet 338 of the through-light. The through-light is located between the inner panel 34 and the outer panel 33. In this way, the through-light can be directly shielded by the first outer sub-panel 333 and the second outer sub-panel 334, which is more aesthetically pleasing and neat. Furthermore, since the light outlet 338 is directly defined by the stamping of the outer panel 33 itself, the fit between the through light and the light outlet 338 depends on the assembly tolerances of the first outer sub-panel 333 and the second outer sub-panel 334. This avoids the cumulative assembly errors caused by additional decorative parts, improves the appearance quality of the area surrounding the through light, and makes the rear of the vehicle more concise, flat, and aesthetically pleasing. Both the first outer sub-panel 333 and the second outer sub-panel 334 are fixedly connected to the inner panel 34, making the inner panel 34 and the outer panel 33 form a more stable sheet metal structure, improving the overall structural strength of the tailgate and the reliability of the through light fixation. At the same time, it reduces the number of parts used, lowers assembly complexity, and improves assembly efficiency.

[0027] Specifically, the outer panel 33 of the back panel 3 is configured as a first outer sub-panel 333 and a second outer sub-panel 334, with a light outlet 338 defined between them for mounting a through light. The through light can be directly installed between the inner panel 34 and the outer panel 33, and the first and second outer sub-panels 333 and 334 are used to shield the upper and lower edges of the through light. Compared to the prior art, which requires additional plastic decorative parts or independent mounting brackets to cover part of the light structure in the through light mounting area, the solution in this application eliminates traditional plastic decorative parts and accessories, reducing the number of parts and mold investment, and lowering production costs. Moreover, the size and position of the light outlet 338 formed by the interval between the first and second outer sub-panels 333 and 334 can be flexibly adjusted according to the styling requirements, without the need for additional decorative parts to adapt to different light body contours, shortening the development cycle and reducing development costs.

[0028] Furthermore, refer to Figure 6The inner panel 34 is provided with a reinforcing structure 38. Since the outer panel 33 comprises a first outer sub-panel 333 and a second outer sub-panel 334, which are separately configured, the structural strength of the outer panel 33 is negatively affected, further impacting the overall structural strength of the back door panel 3. Therefore, a reinforcing structure 38 is provided on the inner panel 34. This reinforcing structure 38 increases the structural strength of the inner panel 34, and when the inner panel 34 and the outer panel 33 are connected and fixed together, it improves the overall structural strength of the back door panel 3. Optionally, the reinforcing structure 38 can be a rib, a raised rib, or a plate-like structure, etc., and is not limited here.

[0029] In one embodiment, refer to Figure 3 , Figure 4 as well as Figure 12 The outer panel 33 also includes a third outer sub-panel 335 and a fourth outer sub-panel 336. The third outer sub-panel 335 is located on the side of the first outer sub-panel 333 facing the inner panel 34 and connects the first outer sub-panel 333 and the fourth outer sub-panel 336. The side of the fourth outer sub-panel 336 away from the third outer sub-panel 335 is connected to the second outer sub-panel 334. The third outer sub-panel 335 and the fourth outer sub-panel 336 together form a lamp mounting space 332 that is recessed towards the inner panel 34.

[0030] Specifically, the lamp mounting space 332 is recessed towards the inner plate 34. By utilizing the cavity between the inner plate 34 and the outer plate 33, the lamp can be installed in the lamp mounting space 332, reducing the lamp's protrusion from the outer plate 33 and decreasing wind resistance and space occupation. The third outer sub-plate 335 and the fourth outer sub-plate 336 connect the first outer sub-plate 333 and the second outer sub-plate 334 into a single unit, providing overall structural strength to the outer plate 33 while satisfying the requirements for through-light installation or shielding. Furthermore, the first outer sub-plate 333, the third outer sub-plate 335, the fourth outer sub-plate 336, and the second outer sub-plate 334 form a continuous sheet metal surface, improving the sealing performance between the inner plate 34 and the outer plate 33 and reducing wind noise generated by airflow entering the cavity.

[0031] In one embodiment, refer to Figure 5 The first outer sub-plate 333 includes a first section 3331 and a second section 3332 that are bent and connected. The second section 3332 is bent towards the second outer sub-plate 334. Optionally, the first section 3331 and the second section 3332 are bent and formed as a whole, resulting in higher structural strength. The third outer sub-plate 335 includes a third segment 3351 and a fourth segment 3352 that are bent and connected. The third segment 3351 is bent towards the second outer sub-plate 334. The third segment 3351 is located on the side of the second segment 3332 facing the fourth outer sub-plate 336 and is attached to the second segment 3332. The fourth segment 3352 extends toward the inner plate 34 and is connected to the fourth outer sub-plate 336.

[0032] Specifically, the third segment 3351 and the second segment 3332 are attached to each other, increasing the contact area between the first outer sub-plate 333 and the second outer sub-plate 334, and improving the strength and sealing of the connection between the first outer sub-plate 333 and the second outer sub-plate 334. Optionally, the third segment 3351 and the second segment 3332 can be fixedly connected by adhesive or by welding, which is not limited here.

[0033] In one embodiment, refer to Figure 5 The third outer sub-plate 335 also includes a fifth segment 3353, which is bent and connected to the fourth segment 3352. The third segment 3351 and the fifth segment 3353 are both located on the side of the fourth segment 3352 facing away from the first segment 3331. Optionally, the third segment 3351, the fourth segment 3352 and the fifth segment 3353 are bent into one piece, which can improve the structural strength of the third outer sub-plate 335. The fourth outer sub-plate 336 includes a sixth segment 3362 and an eighth segment 3364 that are bent and connected. The sixth segment 3362 is attached to the fifth segment 3353. The fifth segment 3353 is located on the side of the sixth segment 3362 that faces away from the inner plate 34. The eighth segment 3364 is connected to the second outer sub-plate 334.

[0034] Specifically, the fifth segment 3353 and the sixth segment 3362 are attached to each other, increasing the contact area between the third outer sub-plate 335 and the fourth outer sub-plate 336, thus improving the strength and sealing of the connection between them. Furthermore, since the fifth segment 3353 is located on the side of the sixth segment 3362 facing away from the inner plate 34, it can be directly attached to this side of the sixth segment 3362 during assembly, extending directly to the mounting surface 13, making assembly more convenient. Optionally, the fifth segment 3353 and the sixth segment 3362 can be fixed by adhesive or welding; this is not limited here. Further, the fourth segment 3352 extends along the first segment 3331, and adhesive can be applied between the fourth segment 3352 and the first segment 3331, serving both a fixing and sealing function, further improving the strength and sealing of the connection between the first outer sub-plate 333 and the third outer sub-plate 335.

[0035] In one embodiment, refer to Figure 5The fourth outer sub-plate 336 also includes a seventh segment 3363, which is bent to connect the sixth segment 3362 and the eighth segment 3364. The seventh segment 3363 and the sixth segment 3362 cooperate to form an obtuse angle facing the lamp mounting space 332. This increases the space area enclosed by the sixth segment 3362 and the seventh segment 3363 on the side facing away from the inner plate 34, thereby increasing the area of ​​the lamp mounting space and facilitating the insertion of installation tools such as wrenches into the lamp mounting space 332 for assembly operations. Optionally, the sixth segment 3362, the seventh segment 3363, and the eighth segment 3364 can be integrally bent to improve the structural strength of the fourth outer sub-plate 336.

[0036] In one embodiment, refer to Figure 5 The second outer sub-plate 334 includes a ninth segment 3341 and a tenth segment 3342 connected by bending. The ninth segment 3341 is located on the side of the eighth segment 3364 facing the third segment 3351 and is attached to the eighth segment 3364. The tenth segment 3342 is bent away from the second segment 3364 and connected to the inner plate 34. Specifically, the attachment of the eighth segment 3364 and the ninth segment 3341 increases the contact area between the fourth outer sub-plate 336 and the second outer sub-plate 334, improving the strength and sealing of the connection between the fourth outer sub-plate 336 and the second outer sub-plate 334. Optionally, the ninth segment 3341 and the tenth segment 3342 are integrally bent, which can improve the structural strength of the second outer sub-plate 334.

[0037] In one embodiment, an adhesive is provided between the second segment 3332 and the third segment 3351; And / or, an adhesive is provided between the first segment 3331 and the fourth segment 3352; And / or, an adhesive is provided between the fifth segment 3353 and the sixth segment 3362; And / or, an adhesive is provided between the eighth segment 3364 and the ninth segment 3341.

[0038] Specifically, by setting adhesives between the corresponding structures, both fixing and sealing functions can be achieved, which improves the firmness and sealing of the connection between the various sections of the outer panel 33, thereby improving the overall structural strength of the outer panel 33 and the sealing of the connection with the inner panel 34.

[0039] In one embodiment, refer to Figure 2The first outer sub-plate 333 has a first connecting ear 3391 on its edge, and the third outer sub-plate 335 has a second connecting ear on its edge. The first connecting ear 3391 and the second connecting ear are fixedly connected, thus the first outer sub-plate 333 and the third outer sub-plate 335 can be fixed together by the first connecting ear 3391 and the second connecting ear. Moreover, multiple protruding first connecting ears 3391 and the second connecting ear can be provided respectively, which reduces the overall weight while meeting the connection requirements of the first outer sub-plate 333 and the third outer sub-plate 335. Optionally, the first connecting ear 3391 and the second connecting ear are semi-circular in shape.

[0040] And / or, the edge of the fourth outer sub-plate 336 is provided with a third connecting ear, and the edge of the second outer sub-plate 334 is provided with a fourth connecting ear 3394. The third connecting ear and the fourth connecting ear 3394 are fixedly connected, so that the second outer sub-plate 334 and the fourth outer sub-plate 336 can be fixed together by the third connecting ear and the fourth connecting ear 3394. Moreover, multiple protruding third connecting ears and fourth connecting ears 3394 can be provided respectively, which reduces the overall weight while meeting the connection requirements of the fourth outer sub-plate 336 and the second outer sub-plate 334. Optionally, the shape of the third connecting ear and the fourth connecting ear 3394 is semi-circular.

[0041] In one embodiment, refer to Figure 11 A vibration damping structure 3395 is provided between the first outer sub-plate 333 and the third outer sub-plate 335. Thus, the vibration damping structure 3395 acts as a vibration buffer between the first outer sub-plate 333 and the third outer sub-plate 335, reducing the vibration transmitted from the first outer sub-plate 333 to the third outer sub-plate 335 and lowering vibration noise. Optionally, the vibration damping structure 3395 can be vibration damping cotton, vibration damping rubber, etc., and is not limited here.

[0042] In one embodiment, the vibration damping structure 3395 includes a plurality of expandable adhesives spaced apart along the width direction of the inner plate 34. Thus, the expandable adhesives can bond the first outer sub-plate 333 and the third outer sub-plate 335 together, serving both a fixing function and a vibration damping function. Furthermore, by spaced out the multiple expandable adhesives, compared to a continuous adhesive structure, the amount of expandable adhesive used can be reduced while still meeting the fixing and vibration damping requirements, thereby lowering costs.

[0043] In one embodiment, refer to Figure 2 The fourth outer sub-board 336 is provided with a lamp wire through hole 3365. The inner board 34 and the outer board 33 cooperate to form a cavity, and the lamp wire through hole 3365 communicates with the cavity. It can be understood that the back door wiring harness 5 in the cavity can be led out from the lamp wire through hole 3365 to the lamp installation space 332, which facilitates wiring operations with the through lamp. And / or, the fourth outer sub-plate 336 is provided with lamp mounting holes 3366, which are used to install and / or position lamps, so that lamps such as through lights can be fixed to the fourth outer sub-plate 336 through the lamp mounting holes 3366. Multiple lamp mounting holes 3366 can be provided at intervals to provide reliable fixing of lamps.

[0044] In one embodiment, the fourth outer sub-plate 336 is provided with multiple ribs, including at least one of wrinkle-reducing ribs and anti-springback ribs. Specifically, the wrinkle-reducing ribs can increase local resistance or adjust stress distribution, reduce wrinkling defects caused by material accumulation, and improve the surface forming quality of the fourth outer sub-plate 336. Simultaneously, the anti-springback ribs can increase the rigidity of the fourth outer sub-plate 336, reduce springback, and improve the shape stability of the fourth outer sub-plate 336.

[0045] In one embodiment, refer to Figure 6 The inner panel 34 has a protruding sealing ring platform 311 on its surface facing away from the outer panel 33. The reinforcing structure 38 includes a first step structure 381 disposed on the inner side of the sealing ring platform 311 and a second step structure 382 disposed on the outer side of the sealing ring platform 311. Specifically, the sealing ring platform 311 is used to cooperate with the sealing strip on the vehicle body to form a continuous sealing interface when the tailgate is closed. At the same time, by providing the first step structure 381 on the inner side of the sealing ring platform 311 and the second step structure 382 on the outer side of the sealing ring platform 311, the inner panel 34 forms a stepped gradient structure around the sealing ring platform 311, which can effectively disperse stress concentration on the inner panel 34, reduce the risk of cracking or deformation of the inner panel 34, and extend the service life of the tailgate assembly.

[0046] In one embodiment, refer to Figure 6 The first step structure 381 includes a first step portion 3811 and a second step portion 3812, which are arranged sequentially along the height direction of the tailgate panel 3. Specifically, the first step portion 3811 and the second step portion 3812 are distributed sequentially along the height direction, so that the inner panel 34 forms a multi-layered stiffness gradient structure on the inner side of the sealing ring platform 311. Compared with a single abrupt step, this is beneficial for gradually attenuating and transmitting vibrations along the height direction when the tailgate assembly is subjected to impact, reducing the vibration amplitude, and thus reducing the risk of abnormal noise or cracking.

[0047] In one embodiment, the first step portion 3811 has adjacent first and second step surfaces, and the second step portion 3812 has adjacent third and fourth step surfaces, with the third and second step surfaces adjacent to each other. This creates a continuous series of steps. It is understood that the first step structure 381 and the second step portion 3812 form a continuous multi-level stepped structure inside the sealing ring platform 311, smoothly transitioning sequentially in the height direction. Stress can be progressively transferred and dispersed along the first, second, third, and fourth step surfaces, further improving the structural strength of the inner plate 34.

[0048] In one embodiment, refer to Figure 6 The inner panel 34 is provided with weight-reducing holes 345, which can reduce the weight of the inner panel 34, thereby reducing the overall weight of the entire back panel 3. The weight-reducing holes 345 are located above the first step portion 3811, that is, the weight-reducing holes 345 are located close to the first step portion 3811. The first step portion 3811 can increase the structural strength of the inner panel 34 near the weight-reducing holes 345, reducing the adverse effect of the weight-reducing holes 345 on the overall structural strength of the inner panel 34. And / or, the inner panel 34 has an adhesive application area on the surface facing the outer panel 33. The adhesive application area is located along the periphery of the weight-reducing holes 345 and is used to apply adhesive to fix and connect the outer panel 33. It can be understood that the adhesive application area is used to apply adhesive, that is, adhesive is applied around the periphery of the weight-reducing holes 345, and the inner panel 34 and the outer panel 33 are bonded together by the adhesive, improving the overall structural strength of the back panel 3 and further reducing the adverse effect of the weight-reducing holes 345 on the structural strength of the back panel 3.

[0049] In one embodiment, refer to Figure 6 The first step structure 381 also includes a recessed platform 3813, which is located below the second step portion 3812 and is recessed towards the outer panel 33. In other words, the recessed platform 3813 forms a groove-like structure extending along the width of the back door below the second step portion 3812, absorbing the load transmitted by the second step portion 3812 and further enhancing the structural strength of the entire back door panel 3. Furthermore, the recessed platform 3813 towards the outer panel 33 provides space for the back door wiring harness 5, facilitating electrical connection with lighting fixtures such as through lights.

[0050] In one embodiment, refer to Figure 6The first step structure 381 also includes a third step portion 3814. Two sets of third step portions 3814 are provided, located inside the sealing ring platform 311 and spaced apart along the width direction of the back panel 3. The first step portion 3811 and the second step portion 3812 are located between the two sets of third step portions 3814, and both the first step portion 3811 and the second step portion 3812 are connected to the third step portion 3814. Specifically, the first step portion 3811 and the second step portion 3812 extend along the height direction, providing longitudinal reinforcement; the two sets of third step portions 3814 are arranged along the width direction, providing lateral reinforcement. Furthermore, after the first step portion 3811 and the second step portion 3812 are connected to the third step portion 3814 respectively, the reinforcement structures 38 dispersed in different areas inside the sealing ring platform 311 can be connected into a continuous three-dimensional reinforcement structure, effectively improving the overall structural strength of the inner panel 34 and further reducing the risk of deformation or cracking of the inner panel 34. Optionally, each group of third step sections 3814 may also include one or more step subsections, which is not limited here.

[0051] In one embodiment, refer to Figure 7 The tailgate assembly also includes a reinforcing structure 39, which is located between the inner panel 34 and the outer panel 33. Specifically, the reinforcing structure 39 further enhances the structural strength of the tailgate panel 3. Optionally, the reinforcing structure 39 can be a rib on the inner panel 34 or the outer panel 33, meaning the rib is directly integrated into the inner panel 34 or the outer panel 33. Of course, the reinforcing structure 39 can also be an additional plate-like structure added between the inner panel 34 and the outer panel 33; this is not limited here. Furthermore, the reinforcing structure 39 is located in a weak area of ​​the inner panel 34 or the outer panel 33. The weak areas can be determined through simulation analysis and will not be detailed further.

[0052] In one embodiment, refer to Figure 7 and Figure 18The reinforcing structure 39 includes a first reinforcing plate 391. A mounting protrusion 316 protrudes from the surface of the inner plate 34 facing away from the outer plate 33, for mounting the hinge 2. The first reinforcing plate 391 is located on the surface of the inner plate 34 facing the outer plate 33. A recess 312 is formed on the surface of the inner plate 34 facing the outer plate 33 at a corresponding position of the mounting protrusion 316, and the first reinforcing plate 391 is located in the recess 312. The hinge 2 connects the tailgate panel 3 and the vehicle body and needs to withstand significant forces, requiring high strength at the mounting position. Therefore, in this embodiment, a mounting protrusion 316 is provided on the inner plate 34. The mounting protrusion 316 increases the structural strength of a local area of ​​the inner plate 34, fixing the hinge 2 to the mounting protrusion 316, satisfying the structural strength requirements of the hinge 2 at the mounting position, reducing the risk of deformation or cracking at the mounting position, and ensuring the reliability of the hinge 2. Meanwhile, on the surface of the inner plate 34 facing the outer plate 33, a recess 312 is formed at the corresponding position of the concave protrusion. A first reinforcing plate 391 is provided in the recess 312. The first reinforcing plate 391 can increase the structural strength of the inner plate 34 at the mounting position of the protrusion 316, further improving the reliability of the hinge 2. Optionally, the first reinforcing plate 391 can be fixed to the inner plate 34 by welding or bonding, which is not limited here.

[0053] In one embodiment, refer to Figure 8 The first reinforcing plate 391 includes a first main body 3911 and a plurality of first reinforcing arms 3912 bent and connected to the first main body 3911. The plurality of first reinforcing arms 3912 are arranged at intervals along the circumference of the first main body 3911. Thus, by providing the plurality of first reinforcing arms 3912, they can be connected to the inner plate 34 at multiple positions, thereby enhancing the structural strength of the inner plate 34 in multiple different areas. At least one first reinforcing arm 3912 connects to the bottom wall and side wall of the recess 312. It can be understood that one first reinforcing arm 3912 connects to the bottom wall of the recess 312, or one first reinforcing arm 3912 connects to the side wall of the recess 312, or each of the bottom wall and side wall of the recess 312 has a corresponding first reinforcing arm 3912 connected to it, or the first main body 3911 connects to the bottom wall of the recess 312 and the first reinforcing arm 3912... The inner plate 34 is connected to the sidewall of the recess 312, thereby increasing the structural strength of the recess 312, which in turn increases the structural strength of the mounting protrusion 316; and / or, at least one first reinforcing arm 3912 connects to the side surface of the inner plate 34 facing the outer plate 33 and cooperates with the inner plate 34 to form a first reinforcing cavity. It can be understood that a first reinforcing arm 3912 extends to the outside of the recess 312 and connects with the inner plate 34 to form a first reinforcing cavity, further improving the structural strength of the inner plate 34. Optionally, the surface of the inner plate 34 facing the outer plate 33 is connected to the inner plate 34 at the position corresponding to the sealing ring platform 311, which can improve the structural strength of the area near the sealing ring platform 311 of the inner plate 34 and ensure sealing performance.

[0054] In one embodiment, refer to Figure 8 The first reinforcing plate 391 has a reinforcing edge 3913 around its periphery. The reinforcing edge 3913 is bent and connected to the first reinforcing plate 391 and bends towards the outer panel 33. Specifically, the reinforcing edge 3913 extends along the periphery of the first reinforcing plate 391, which is equivalent to adding a bent flange structure to the edge of the first reinforcing plate 391. This increases the torsional resistance of the first reinforcing plate 391 in multiple directions, further improves the structural strength of the first reinforcing plate 391, and thus enhances the overall structural strength of the back door panel 3. Optionally, the reinforcing edge 3913 can be set on the edge of the first main body 3911, or on the edge of the first reinforcing arm 3912, or simultaneously on the edges of the first main body 3911 and the first reinforcing arm 3912. No limitation is made here.

[0055] In one embodiment, the shortest distance from the sealing ring platform 311 to the top of the inner plate 34 is greater than the shortest distance from the mounting protrusion 316 to the top of the inner plate 34, thus forming a wiring space between the top of the inner plate 34 and the sealing ring platform 311. It is understood that the sealing ring platform 311 is located on the side of the mounting protrusion 316 facing away from the top of the inner plate 34. Thus, a space is created between the top of the inner plate 34 and the sealing ring platform 311, forming a wiring space where the rear door wiring harness 5 or the spoiler wiring harness 423 can be arranged, improving wiring convenience.

[0056] In one embodiment, refer to Figure 7The reinforcing structure 39 includes reinforcing members 392, which are fixedly connected to the outer panel 33. Multiple reinforcing members 392 are spaced apart circumferentially along the outer panel 33, with at least one reinforcing member 392 extending along the width direction of the back panel 3 and at least one reinforcing member 392 extending along the height direction of the back panel 3. It is understood that providing reinforcing members 392 in a localized area of ​​the outer panel 33 can increase the structural strength of the outer panel 33 in that area, thereby improving the overall structural strength of the outer panel 33. Optionally, three reinforcing members 392 can be provided, with two reinforcing members 392 spaced apart along the width direction of the back panel 3 and the third reinforcing member 392 positioned near the top of the back panel 3. The three reinforcing members 392 form a triangular-like structure, further enhancing the structural strength of the outer panel 33.

[0057] In one embodiment, refer to Figure 7 The reinforcing structure 39 also includes an auxiliary adhesive 393, which connects the inner panel 34 and the outer panel 33. Multiple reinforcing members 392 are arranged around the auxiliary adhesive 393. It is understood that the auxiliary adhesive 393 can fix the inner panel 34 and the outer panel 33 together, improving the reliability of the connection between them. Furthermore, the reinforcing members 392 surround the outer periphery of the auxiliary adhesive 393, cooperating with each other to further enhance the structural strength of the back panel 3.

[0058] In one embodiment, refer to Figure 9 The reinforcing structure 39 includes a second reinforcing plate 394, which is disposed on the surface of the inner plate 34 facing the outer plate 33 and corresponds to the installation position of the electric support rod 411 on the inner plate 34. The second reinforcing plate 394 includes a first connecting part 3941 and a second connecting part 3942 that are bent together. The surface of the sealing ring platform 311 facing the outer plate 33 is fixedly connected to the first connecting part 3941, and the surface of the inner plate 34 facing the outer plate 33 is fixedly connected to the second connecting part 3942. It can be understood that the second reinforcing plate 394 increases the structural strength of the inner plate 34 at the installation position of the electric support rod 411, ensuring the normal installation and use of the electric support rod 411. Moreover, the first connecting part 3941 and the second connecting part 3942, through bending together, can achieve connection with different positions of the inner plate 34, that is, connection with the sealing ring platform 311, further improving the structural strength of the corresponding position of the sealing ring platform 311.

[0059] In one embodiment, refer to Figure 10The reinforcing structure 39 includes a third reinforcing plate 395. A groove is provided on the surface of the inner plate 34 facing the outer plate 33, and the third reinforcing plate 395 is disposed in the groove, corresponding to the installation position of the rear door lock on the rear door panel 3. It can be understood that the groove corresponding to the rear door lock can improve the structural strength of the rear door panel 3 at that position. Furthermore, by placing the third reinforcing plate 395 in the groove, it can provide support for the groove, thereby improving the structural strength of the inner plate 34 at the rear door lock position and ensuring the normal installation and use of the rear door lock. In one embodiment, refer to Figure 10 The third reinforcing plate 395 includes a third main body 3951, a reinforcing side 3952 bent and connected to the third main body 3951, and a reinforcing flange 3953 bent and connected to the reinforcing side 3952. The third main body 3951 is fixedly connected to the bottom of the groove. The reinforcing side 3952 is inclined and cooperates with the side wall of the groove to form a second reinforcing cavity. The reinforcing flange 3953 is fixedly connected to the surface of the inner plate 34 facing the outer plate 33. Specifically, the third main body 3951, the reinforcing side 3952, and the reinforcing flange 3953 can be connected to different positions in the groove, improving the reliability of the connection. Moreover, the second reinforcing cavity can absorb vibration or impact, further improving the structural strength of the back door panel 3.

[0060] In one embodiment, multiple second step structures 382 are provided along the width direction of the back door panel 3, and at least one second step structure 382 is connected to the sealing ring platform 311. In this way, the second step structure 382 and the sealing ring platform 311 can be connected into a continuous whole, which cooperate with each other to further improve the structural strength of the back door panel 3. And / or, a cavity is formed between the inner plate 34 and the outer plate 33. The inner plate 34 is provided with a lamp mounting clearance hole, which communicates with the cavity. It can be understood that, under normal circumstances, the lamp is fixed to the outer plate 33 by bolts. By providing the lamp mounting clearance hole, the bolts and other locking parts 23 can be avoided, thus preventing interference between the inner plate 34 and the locking parts 23.

[0061] In one embodiment, refer to Figure 7The inner plate 34 has a clearance notch 341 to avoid the lighting fixture installation space 332. A sealing plate 36 is provided in the clearance notch 341, sealingly connecting the inner plate 34 and the outer plate 33. The clearance notch 341 is provided on the inner plate 34 to facilitate the forming of the lighting fixture installation space 332. When assembling the inner and outer plates 33, the sealing plate 36 is installed in the clearance notch 341 to seal it, improving the sealing performance of the connection between the inner plate 34 and the outer plate 33 and reducing wind noise. Optionally, the outer plate 33 is L-shaped, with the lighting fixture installation space 332 located at the corner of the L-shape, and the clearance notch 341 also located at the corner of the L-shape. Furthermore, the sealing plate 36 can be fixed to the clearance notch 341 with sealant; that is, the inner plate 34 or the outer plate 33 can be connected to the sealing plate 36 with sealant.

[0062] In one embodiment, refer to Figure 7 The inner panel 34 includes an inner panel body 342, a support protrusion 343 protruding from the surface of the inner panel body 342 facing the cavity, and an outwardly bent portion 344 that is bent away from the cavity and connected to the support protrusion 343. The outwardly bent portion 344 is located at the edge of the inner panel body 342. It can be understood that for the entire back panel 3, the inner panel body 342 and the outer panel 33 are in direct contact and fixed together, and a cavity can be formed between the inner panel 34 and the outer panel 33 through the support protrusion 343. The support protrusion 343 and the outwardly bent portion 344 form a clearance notch 341. It can be understood that at least the support protrusion 343 and the outwardly bent portion 344 have a clearance notch 341. Of course, the inner panel body 342 may also have a clearance notch 341. (Refer to...) Figure 13 The sealing plate 36 includes a main body 361 and a sealing part 362 bent and connected to the main body 361. The main body 361 is attached to the inner surface of the support protrusion 343 facing the cavity, and the sealing part 362 is bent away from the cavity and sealably connects the outwardly turned part 344 and the outer plate 33. Specifically, the main body 361 can directly contact and be fixed together with the inner plate main body 342, and the sealing part 362 connects the outwardly turned part 344 and the outer plate 33, thereby forming a continuous sealing surface, which greatly improves the sealing performance of the inner plate 34 and the outer plate 33 in the corresponding area of ​​the lamp installation space 332.

[0063] In one embodiment, the outer panel 33 includes a first outer sub-panel 333, a second outer sub-panel 334 and a fourth outer sub-panel 336 connected in sequence, and a third outer sub-panel 335 connects the first outer sub-panel 333 and the fourth outer sub-panel 336. Reference Figure 13The sealing part 362 includes a first sealing sub-part 3621, a second sealing sub-part 3622, and a third sealing sub-part 3623 connected together; the first outer sub-plate 333 and the outwardly turned part 344 are located on opposite sides of the first sealing sub-part 3621, a portion of the first sealing sub-part 3621 is in contact with the outwardly turned part 344, and the first sealing sub-part 3621 is in contact with the outer plate 33; the second outer sub-plate 334 and the outwardly turned part 344 are located on opposite sides of the third sealing sub-part 3623, and are both sealed to the third sealing sub-part 3623; the second sealing sub-part 3622 is sealed to the fourth outer sub-plate 336.

[0064] Specifically, both the first outer sub-plate 333 and the outward-facing portion 344 can directly contact and connect with the first sealing sub-portion 3621, and can be fixed with sealant. It can be understood that the first outer sub-plate 333 and the outward-facing portion 344 are attached to opposite sides of the first sealing sub-portion 3621, thus achieving a sealed connection between them. Simultaneously, the second outer sub-plate 334 and the outward-facing portion 344 can directly contact and connect with the third sealing portion 362; that is, the second outer sub-plate 334 and the outward-facing portion 344 can be attached to opposite sides of the third sealing sub-portion 3623, thus achieving a sealed connection between them. Furthermore, the second sealing sub-portion 3622 is attached to the surface of the fourth outer sub-plate 336 facing away from the lamp mounting space 332, achieving a sealed connection between the fourth outer sub-plate 336 and the second sealing sub-portion 3622. Thus, through the cooperation of the above-mentioned structures, a continuous sealing surface that seals with the inner plate 34 is formed in the direction from the first outer plate 333 to the second outer plate 334, thereby improving the sealing performance between the inner plate 34 and the outer plate 33.

[0065] In one embodiment, refer to Figure 12 The outer plate 33 also includes a third outer sub-plate 335, which is located on the side of the first outer sub-plate 333 facing the inner plate 34 and connects the first outer sub-plate 333 and the fourth outer sub-plate 336. The fourth outer sub-plate 336 connects the third outer sub-plate 335 and the second outer sub-plate 334. The third outer sub-plate 335 has an extension portion 337 that extends close to the inner plate 34 and is located on the side of the first sealing sub-part 3621 facing away from the cavity. The extension portion 337 and the first sealing sub-part 3621 are connected by a sealing structure. It can be understood that the extension portion 337 is located close to the edge of the inner plate 34, and the extension portion 337 and the first sealing sub-part 3621 are connected by a sealing structure, which can achieve a seal between the inner plate 34 and the outer plate 33 in the edge area, further ensuring the seal between the inner plate 34 and the outer plate 33.

[0066] In one embodiment, the main body 361 and the support protrusion 343 are fixedly connected by a weld point structure, which can improve the reliability of the fixation between the two. And / or, refer to Figure 13 The main body 361 is provided with a strut mounting hole 3611, which is used to install an electric strut 411. It can be understood that the electric strut 411 can be connected to the strut mounting hole 3611 via bolts or the like, thereby achieving a fixed connection between the electric strut 411 and the inner plate 34. Of course, the strut mounting hole 3611 can also play a certain positioning role during the assembly of the electric strut 411.

[0067] In one embodiment, refer to Figure 12 The outer panel 33 is provided with an assembly hole 3361, and the sealing part 362 is provided with a clearance notch 3624, which is used to avoid the assembly hole 3361. In this way, interference between the light fixtures such as through lights and the clearance notch 3624 can be avoided when they are assembled onto the outer panel 33, ensuring that the light fixtures can be assembled and installed normally.

[0068] In one embodiment, refer to Figure 14 The rear door assembly also includes a lighting fixture panel 37. The assembly hole 3361 includes a first assembly sub-hole and a second assembly sub-hole spaced apart. The first assembly sub-hole is used to fix the lighting fixture panel 37, and the second assembly hole is used to fix the lighting fixture. Specifically, the lighting fixture panel 37 improves the aesthetic consistency of the clearance notch 341. The lighting fixture panel 37 is fixed to the outer panel 33 through the first assembly sub-hole, and lighting fixtures such as through-lights are fixed to the outer panel 33 through the second assembly sub-hole. Thus, the lighting fixture and the lighting fixture panel 37 can be independently installed and fixed on the outer panel 33 through different assembly sub-holes.

[0069] In one embodiment, refer to Figure 15 The lamp panel 37 is provided with a first buckle 371, which engages with the first assembly hole. It is understood that the lamp panel 37 is fixedly connected to the outer panel 33 via the first buckle 371, which is simple and convenient.

[0070] In one embodiment, refer to Figure 15 The lamp panel 37 is provided with a second clip 372, which is used to clip the lamp. It can be understood that the lamp panel 37 is also fixedly connected to the lamp via the second clip 372, that is, the lamp is fixed on the lamp panel 37, and the assembly operation of the lamp is simple.

[0071] In one embodiment, refer to Figure 15 The lamp panel 37 is also provided with abutting arms 373, which abut against the lamp panel 37 on opposite sides of the outer panel 33. In other words, the abutting arms 373 and the lamp panel 37 cooperate to clamp on opposite sides of the outer panel 33, which can improve the reliability of fixing the lamp panel 37 and the outer panel 33.

[0072] In one embodiment, a recess 312 is formed in the middle of the inner panel 34, and the tailgate assembly includes: Reference Figures 17 to 19 The tailgate panel 3 has a sealing ring platform 311 on its inner side, and a recess 312 on its inner side. It can be understood that the tailgate panel 3 is the main structure of the tailgate assembly and can adopt commonly used structural designs, which will not be detailed further. The tailgate panel 3 and the vehicle body 1 are sealed by the sealing ring platform 311, effectively preventing external moisture, dust, and noise from entering the vehicle interior and ensuring the sealing performance of the rear of the vehicle. Optionally, a sealing ring can be provided on the sealing ring platform 311, which can form an elastic pressure seal with the corresponding area of ​​the vehicle body 1 when the tailgate panel 3 is closed. The tailgate wiring harness 5 has one end extending into the recess 312, and the other end connecting to the vehicle body wiring harness. Specifically, the tailgate wiring harness 5 extends into the recess 312, which allows it to be stored and reduces the height of the harness protruding from the tailgate panel 3, thus reducing the thickness of the tailgate panel 3. Specifically, the tailgate wiring harness 5 is electrically connected to the vehicle body wiring harness. It can be understood that the tailgate wiring harness 5 is used to transmit electrical energy from the vehicle body wiring harness to the tailgate panel 3, facilitating the establishment of an electrical connection between the electrical components on the tailgate panel 3 and the vehicle body wiring harness. In other words, the tailgate wiring harness 5 serves as the main wiring harness on the tailgate panel 3 and is directly electrically connected to the vehicle body wiring harness. Furthermore, the various power modules 4 on the tailgate panel 3 are directly electrically connected to the tailgate wiring harness 5, thereby achieving an electrical connection with the vehicle body wiring harness. The end of the tailgate wiring harness 5 furthest from the body wiring harness is located in the recess 312, which allows for at least partial concealment of the tailgate wiring harness 5, reducing the amount of wiring harness exposed on the surface of the tailgate panel 3 and resulting in better aesthetic consistency. Optionally, the tailgate wiring harness 5 passes through the upper part of the tailgate panel 3 and extends into the recess 312, which can further reduce wiring harness exposure and improve the aesthetic consistency of the tailgate panel 3; and At least two power modules 4 are provided, each located on the outer periphery of the sealing ring platform 311, and at least two power modules 4 are electrically connected to the tailgate wiring harness 5. It can be understood that multiple power modules 4 are directly electrically connected to the tailgate wiring harness 5, establishing an electrical connection with the vehicle body wiring harness through the tailgate wiring harness 5. Compared to each power module 4 being directly electrically connected to the vehicle body wiring harness, this reduces the complexity of the overall vehicle wiring harness layout, improves wiring convenience, and enhances the vehicle's appearance consistency. It should be noted that the outer periphery of the sealing ring platform 311 refers to the area outside the inner wall of the sealing ring platform 311; that is, all locations outside the inner wall of the sealing ring platform 311 are considered the outer periphery of the sealing ring platform 311.

[0073] In the technical solution adopted in this embodiment, by first converging the lines of multiple power modules 4 to the tailgate wiring harness 5, and then connecting them to the body wiring harness via the tailgate wiring harness 5, the number of reserved wiring points on the side of the body can be reduced, the number of openings in the body sheet metal and the number of wiring channels can be reduced, the overall layout complexity of the vehicle wiring harness can be effectively reduced, the convenience of wiring operation can be improved, and the appearance defects such as exposed excess wiring harnesses and messy wiring can be reduced, thereby improving the regularity of the wiring harness layout around the tailgate panel 3 and the consistency of the interior and exterior appearance of the vehicle.

[0074] In one embodiment, refer to Figure 18 and Figure 19 One power module 4 includes: An electric strut 411 is provided, with one end connected to the tailgate panel 3 and the other end connected to the vehicle body 1. It is understood that the electric strut 411 drives the tailgate panel 3 to rotate, thereby opening or closing the receiving cavity 11. The specific form of the electric strut 411 can be referenced from existing product structures and will not be detailed further. Optionally, two sets of electric struts 411 are symmetrically arranged along the width direction of the vehicle. Specifically, the electric struts 411 are located on the outer periphery of the sealing ring platform 311; and The strut harness 412 is located on the inner side of the tailgate panel 3. One end of the strut harness 412 is electrically connected to the electric strut 411, and the other end extends to the recess 312 and is electrically connected to the tailgate harness 5. It can be understood that the strut harness 412 is used to provide power to the electric strut 411; that is, one end of the strut harness 412 is electrically connected to the tailgate harness 5, and the other end is electrically connected to the electric strut 411, thereby transmitting the power from the tailgate harness 5 to the electric strut 411, providing power for the operation of the electric strut 411. Furthermore, the strut harness 412 is located on the side of the tailgate panel 3 facing the vehicle body 1, meaning the side of the tailgate panel 3 facing the opening 12 of the receiving cavity 11 is the inner side. Compared to the electric support rod 411, where the support rod wiring harness 412 is located above the electric support rod 411, the support rod wiring harness 412 will not be exposed after the tailgate panel 3 is opened. That is, the support rod wiring harness 412 can be close to the surface of the tailgate panel 3 and rotate with the tailgate panel 3, reducing the messiness of the wiring harness and making the appearance of the tailgate panel 3 more consistent when it is opened. Optionally, the support rod wiring harness 412 and the tailgate wiring harness 5 can be plugged in, soldered, etc., which is not limited here. Furthermore, the support rod wiring harness 412 is led out from the end of the electric support rod 411 near the tailgate panel 3, which facilitates the electrical connection to the tailgate wiring harness 5 in the recess 312.

[0075] In the technical solution adopted in this embodiment, during the opening process of the tailgate panel 3, the support rod harness 412 is closely attached to the surface of the tailgate panel 3 and rotates synchronously with the tailgate panel 3. It will not be exposed in the opening and closing gap between the tailgate panel 3 and the vehicle body 1, eliminating the messy hanging of the support rod harness 412, improving the integrity and uniformity of the appearance of the opening and closing area of ​​the rear of the vehicle, and enhancing visual consistency. Moreover, the support rod harness 412 will be closely attached to the surface of the tailgate panel 3 and will not swing significantly in the air, avoiding the problem of entanglement and messiness between the support rod harness 412 and other harnesses, and improving the neatness and orderliness of the harness layout.

[0076] In one embodiment, the strut harness 412 extends through the sealing ring platform 311 to the recess 312. This avoids the strut harness 412 crossing the sealing ring platform 311, facilitates the extension of the strut harness 412 into the recess 312, and reduces the adverse effect on the seal between the tailgate panel 3 and the vehicle body 1.

[0077] In one embodiment, refer to Figure 18 , Figure 19 as well as Figure 23 The back panel 3 is provided with a wiring harness through hole 321. The support rod wiring harness 412 passes through the wiring harness through hole 321 and through the sealing ring platform 311, extending to the recessed portion 312. Specifically, the wiring harness through hole 321 allows the support rod wiring harness 412 to easily extend into the recessed portion 312 and electrically connect with the back panel wiring harness 5. Optionally, the wiring harness through hole 321 faces the electric support rod 411, so that the support rod wiring harness 412 leading from the electric support rod 411 can directly extend into the recessed portion 312 through the wiring harness through hole 321, reducing the bending of the support rod wiring harness 412. Furthermore, the wiring harness through hole 321 is located below the electric support rod 411, so that the support rod wiring harness 412 leading from the electric support rod 411 will hang down naturally, facilitating its entry into the wiring harness through hole 321.

[0078] In one embodiment, the wiring harness through-hole 321 is provided with sealant, and the strut wiring harness 412 and the wiring harness through-hole 321 are sealed together by the sealant. It is understood that the sealant can achieve a seal between the strut wiring harness 412 and the wiring harness through-hole 321, improving the sealing performance of the recess 312, reducing wind noise, and simultaneously fixing the strut wiring harness 412 in the wiring harness through-hole 321, preventing the strut wiring harness 412 from swinging, reducing friction between the strut wiring harness 412 and the edge of the wiring harness through-hole 321, and improving the service life of the strut wiring harness 412.

[0079] In one embodiment, refer to Figure 18 , Figure 19 as well as Figure 23The recessed portion 312 is provided with a wire harness assembly hole 322, which communicates with the wire harness through hole 321. Understandably, when assembling the wire harness, the operator's hand can pull the support rod wire harness 412 out to the recessed portion 312 through the wire harness assembly hole 322, improving the convenience of connecting the back door wire harness 5 and the support rod wire harness 412. Additionally, in special circumstances, tools such as wires can be inserted through the wire harness assembly hole 322 to pull the support rod wire harness 412 out to the recessed portion 312 for inspection or maintenance. Optionally, the shape of the wire harness assembly hole 322 can be square, circular, etc., and is not limited here. Furthermore, the wire harness assembly hole 322 can be provided with a cover, which is movably connected to the back door panel 3, such as through a rotating connection or a sliding connection, to open or close the wire harness assembly hole 322. Furthermore, the wiring harness assembly hole 322 is located on the inner side of the sealing ring platform 311, which can avoid the narrow area on the outer side of the sealing ring platform 311, providing sufficient operating space for the operator and improving the convenience of connecting the support rod wiring harness 412 and the back door wiring harness 5.

[0080] In one embodiment, the wire harness mounting hole 322 is located below the wire harness through hole 321, so that the strut wire harness 412 can hang down under its own weight and be pulled out smoothly from the wire harness mounting hole 322.

[0081] In one embodiment, the wire harness assembly hole 322 is positioned opposite to the wire harness through hole 321. Thus, when the sealant seals the wire harness through hole 321 and the strut wire harness 412, an endoscope can be inserted through the wire harness assembly hole 322 to observe the sealing process, allowing for timely adjustment of the sealant's sealing position and improving sealing reliability.

[0082] In one embodiment, refer to Figure 19 The outer wall of the sealing ring platform 311 is provided with a clearance recess 313, and the wiring harness through hole 321 is located in the clearance recess 313. Specifically, the clearance recess 313 provides wiring space for the strut wiring harness 412, facilitating its arrangement. Moreover, with the wiring harness through hole 321 located in the clearance recess 313, the strut wiring harness 412 can pass through the side wall of the sealing ring platform 311. The strut wiring harness 412 is constrained in the clearance recess 313 and will not enter the closing gap of the tailgate panel 3, reducing the adverse effects on the sealing of the tailgate panel 3 and the vehicle body 1.

[0083] In one embodiment, refer to Figure 19The clearance recess 313 has a first sidewall 3131 and a second sidewall 3132 arranged adjacent to each other, and the included angle between the first sidewall 3131 and the second sidewall 3132 is an obtuse angle. In this way, the area of ​​the wiring space provided by the clearance recess 313 can be increased, and the strut harness 412 can be bent at a larger angle in the clearance recess 313, avoiding cracking or breakage of the strut harness 412 due to too small a bending angle, and improving the service life of the strut harness 412.

[0084] In one embodiment, the strut harness 412 is located below the electric strut 411. Thus, the strut harness 412 can hang naturally, allowing it to pass through the sealing ring platform 311 and extend into the recess 312, thereby electrically connecting to the back door harness 5.

[0085] In one embodiment, refer to Figure 20 The rear door panel 3 also has a mounting portion 314 located on the upper side of the recess 312. The mounting portion 314 is provided with a wire notch 3141. It can be understood that the recess 312 is formed in the middle of the rear door panel 3, and the mounting portion 314 is formed on the edge of the rear door panel 3, which can be used to install decorative parts such as the spoiler 421.

[0086] In one embodiment, refer to Figure 24 and Figure 25 One power module 4 includes: Spoiler 421 is provided on mounting part 314. Specifically, spoiler 421 can be fixed to mounting part 314 by bolts or the like. The specific structure of spoiler 421 can be referred to existing products and will not be described in detail here. Electrical component 422, located on spoiler 421, can be at least one of a brake light or a camera. That is, a brake light, a camera, or both can be mounted on spoiler 421. Optionally, the brake light and camera are sequentially arranged along the length of spoiler 421 (i.e., the width of the vehicle) and can be fixed to spoiler 421 by bolts, etc., which is not limited here. The specific structures of the brake light and camera can be found in existing products and will not be detailed further. The spoiler wiring harness 423 has one end electrically connected to the electrical component 422, and the other end passes through the wiring notch 3141 and is electrically connected to the tailgate wiring harness 5. Specifically, the spoiler wiring harness 423 is used to provide power to the electrical component 422. It can be understood that the spoiler wiring harness 423 electrically connects the tailgate wiring harness 5 and the electrical component 422, thereby transferring the power from the tailgate wiring harness 5 to the electrical component 422. For the smaller spoiler 421, after the spoiler 421 is installed on the tailgate panel 3, it is closer to the edge of the tailgate panel 3 and cannot directly pass through the recess 312 to electrically connect with the tailgate wiring harness 5. Therefore, this embodiment provides a wiring notch 3141 on the edge of the tailgate panel 3. Specifically, the wiring notch 3141 is provided on the surface of the mounting portion 314 facing away from the recess 312. The spoiler wiring harness 423 can first extend through the wire notch 3141 to the inside of the tailgate panel 3 (i.e. the side facing away from the spoiler 421), and then pass through the sealing ring platform 311 on the inside of the tailgate panel 3 and extend into the recess 312, thereby connecting with the tailgate wiring harness 5. This makes wiring more convenient and avoids the spoiler wiring harness 423 being exposed on the outside of the tailgate panel 3, improving the consistency of appearance and making it more aesthetically pleasing.

[0087] In this embodiment, by providing a wiring notch 3141 at the edge of the tailgate panel 3, the spoiler wiring harness 423 can smoothly extend from the outside of the tailgate panel 3 to the inside of the tailgate panel 3 via the wiring notch 3141. Then, it passes through the sealing ring 311 in the open space inside the tailgate panel 3 and connects electrically with the tailgate wiring harness 5. This eliminates the need for complex wiring operations in narrow installation gaps, facilitating wiring harness arrangement and assembly, reducing the labor intensity of operators, and improving assembly efficiency on the production line. Furthermore, after passing through the wiring notch 3141, the spoiler wiring harness 423 is guided to the inside of the tailgate panel 3, with the overall wiring path hidden inside the tailgate panel 3 and not exposed on its outer surface. Since the wiring notch 3141 is located on the side of the mounting portion 314 facing away from the recessed portion 312, it can be covered by the spoiler 421 and is invisible from the outside of the vehicle, improving the overall appearance consistency of the rear of the vehicle.

[0088] In one embodiment, refer to Figure 20 and Figure 22In the thickness direction of the back panel 3, the wiring notch 3141 has a first notch 31411 and a second notch 31412 that are connected. The widths of the first notch 31411 and the second notch 31412 are different to form an adhesive application step at the connection point of the first notch 31411 and the second notch 31412. The adhesive application step is used to apply sealant. The edges of the back panel 3 are usually fixed together by glue or welding. Providing the wiring notch 3141 at the edge of the back panel 3 may damage the glue or welding, affecting the sealing performance of the recess 312. Therefore, in this embodiment, the wiring notch 3141 includes a first notch 31411 and a second notch 31412 with different widths. The adhesive application step formed at the connection point of the first notch 31411 and the second notch 31412 facilitates the application of sealant and improves the sealing performance of the recess 312. It should be noted that the difference in width between the first notch 31411 and the second notch 31412 refers to the difference in size between the two notches in the width direction of the vehicle, or the difference in size between the two notches in the height direction of the vehicle, or the difference in size between the two notches in both the width and height directions of the vehicle.

[0089] In one embodiment, refer to Figure 21 and Figure 22 The rear door panel 3 includes an outer panel 33 and an inner panel 34. The middle part of the inner panel 34 is recessed towards the outer panel 33 to form a recessed portion 312. The edges of the outer panel 33 and the inner panel 34 are fixedly connected to form a mounting portion 314. A first notch 31411 is provided in the outer panel 33, and a second notch 31412 is provided in the inner panel 34. That is, the rear door panel 3 includes an inner panel 34 and an outer panel 33. The inner panel 34 and the outer panel 33 are fastened together to form a rear door panel 3 with a recessed portion 312. In other words, the edges of the inner panel 34 and the outer panel 33 are fixed together, and a recessed portion 312 is provided at a distance in the middle. A mounting portion 314 is formed in the area where the edges of the inner panel 34 and the outer panel 33 are fixed. Along the thickness direction of the rear door panel 3, the first notch 31411 penetrates the outer panel 33, and the second notch 31412 penetrates the inner panel 34, so that the spoiler wiring harness 423 can be guided to the inside of the rear door panel 3, that is, the side of the inner panel 34 facing away from the outer panel 33. Optionally, a cavity can be formed between the inner panel 34 and the outer panel 33. By applying sealant to the adhesive-coated step, the sealing performance of the cavity can be improved and wind noise can be reduced.

[0090] In one embodiment, the width of the first notch 31411 is smaller than the width of the second notch 31412. Thus, the adhesive application step is formed on the inner panel 34, meaning adhesive can be applied to one side of the inner panel 34. The applied sealant is located on the side of the outer panel 33 facing the inner panel 34, and is not exposed on the side of the outer panel 33 facing away from the inner panel 34, further improving the overall appearance consistency of the rear of the vehicle and enhancing its aesthetics.

[0091] In one embodiment, refer to Figure 20 and Figure 22 The outer panel 33 has a flange 331, one end of which is connected to the outer panel 33, and the other end of which abuts against the surface of the inner panel 34 facing away from the outer panel 33. A first notch 31411 penetrates the flange 331. It is understood that the flange 331, being bent and connected to the outer panel 33, can extend to the side of the inner panel 34 facing away from the outer panel 33 and abut against it, increasing the contact area between the outer panel 33 and the inner panel 34 and improving the reliability of their fixation. The first notch 31411 penetrating the flange 331 ensures that the spoiler wiring harness 423 can be smoothly guided to the side of the inner panel 34 facing away from the outer panel 33.

[0092] In one embodiment, a wiring space is formed between the sealing ring 311 and the wiring notch 3141, and the spoiler wiring harness 423 is at least partially disposed in the wiring space. Thus, the spoiler wiring harness 423 can be bent and arranged within the wiring space. In other words, by reserving wiring space, the wiring convenience of the spoiler wiring harness 423 is improved, and the spoiler wiring harness 423 can also be constrained within the wiring space, improving the neatness of the wiring harness arrangement.

[0093] In one embodiment, refer to Figure 18 and Figure 20 The sealing ring platform 311 is provided with a wiring harness through hole 323, which communicates with the recessed portion 312. One end of the spoiler wiring harness 423 passes through the wiring harness through hole 323 and is electrically connected to the tailgate wiring harness 5. It can be understood that the spoiler wiring harness 423 is first guided to the side of the inner plate 34 facing away from the outer plate 33 by the wire passing notch 3141, and then passes through the sealing ring platform 311 through the wiring harness through hole 323 and extends to the recessed portion 312, thereby realizing the electrical connection with the tailgate wiring harness 5.

[0094] In one embodiment, refer to Figure 18 , Figure 20 as well as Figure 24The rear door panel 3 has a wiring harness assembly hole 324 on the side facing away from the spoiler 421, which communicates with the wiring harness through hole 323. Understandably, during wiring harness assembly, the operator can use their hand to pull the spoiler wiring harness 423 to the recess 312 through the wiring harness assembly hole 324, improving the convenience of connecting the rear door wiring harness 5 and the spoiler wiring harness 423. Additionally, in special circumstances, tools such as a wire can be used to pull the spoiler wiring harness 423 out to the recess 312 through the wiring harness assembly hole 324 for inspection or maintenance. Optionally, the shape of the wiring harness assembly hole 324 can be square, circular, etc., and is not limited here. Furthermore, the wiring harness assembly hole 324 is provided with a cover, which is movably connected to the rear door panel 3, such as by rotation or sliding, to open or close the wiring harness assembly hole 324. Furthermore, the wire harness assembly hole 324 is provided in the recess 312, that is, located inside the sealing ring platform 311.

[0095] In one embodiment, refer to Figure 24 The tailgate assembly also includes a conduit 35. One end of the conduit 35 is connected to the spoiler 421, and the other end is connected to the sealing ring 311. The conduit 35 is sleeved on the outside of the spoiler wiring harness 423. Specifically, the conduit 35 can prevent the spoiler wiring harness 423 from directly contacting the edge of the wire passage notch 3141, avoiding friction damage to the wiring harness sheath. It also restricts the wiring harness from bending arbitrarily, extending the service life of the wiring harness. Furthermore, it can block rainwater, ultraviolet rays, and other substances from corroding the wiring harness, improving the wiring harness's waterproof and dustproof capabilities. Moreover, it can constrain the wiring harness's direction, preventing the wiring harness from becoming tangled, and further improving the flatness of the tailgate panel 3's appearance.

[0096] In one embodiment, refer to Figure 21 The rear door panel 3 has a mounting recess 315 on its surface, and the spoiler 421 is disposed in the mounting recess 315. Specifically, the mounting recess 315 can be used to position the spoiler 421 during assembly, and can also reduce the height of the spoiler 421 protruding from the rear door panel 3, thereby reducing wind resistance.

[0097] In one embodiment, refer to Figure 17 The tailgate assembly also includes a decorative panel 6, which is located in a recess 312. The recess 312 and the decorative panel 6 cooperate to form a cavity, in which the tailgate wiring harness 5 is hidden. This reduces exposed wiring harnesses and further improves the cleanliness and consistency of the overall vehicle appearance. Optionally, the decorative panel 6 is detachably connected to the tailgate panel 3, facilitating the inspection and maintenance of the wiring harness.

[0098] This application also proposes a vehicle body, referring to... Figure 16 and Figure 17 The vehicle body includes: The vehicle body 1 has a receiving cavity 11 with an opening 12. It is understood that the vehicle body 1 is the frame structure of the vehicle body and is connected to the chassis. The receiving cavity 11 is what is commonly referred to as the trunk. The receiving cavity 11 has an opening 12 for installing the tailgate assembly. The vehicle body 1 has a mounting surface 13 facing the rear of the vehicle, which can be used to install hinges 2. The rear door assembly is rotatably disposed at the opening 12 to open or close the receiving cavity 11. It is understood that when the rear door assembly is open, the receiving cavity 11 can be placed or retrieved; when the rear door assembly is closed, the receiving cavity 11 is in a sealed state, and items cannot be retrieved. In this embodiment, the rear door assembly can be the rear door assembly described above, or it can be other forms of rear door assembly, which will not be detailed further; and Hinge 2 includes a fixed arm 21 and a rotating arm 22. The rotating arm 22 is rotatably connected to the fixed arm 21, and the fixed arm 21 is fixedly connected to the mounting surface 13. The end of the rotating arm 22 away from the fixed arm 21 is fixedly connected to the tailgate assembly. It can be understood that hinge 2 achieves a rotatable connection between the tailgate assembly and the vehicle body 1, ensuring smooth rotation of the tailgate assembly. Specifically, the fixed arm 21 of hinge 2 is fixedly connected to the vehicle body 1, and the rotating arm 22 of hinge 2 is fixedly connected to the tailgate assembly. When the tailgate assembly rotates under external force, the rotating arm 22 rotates synchronously. Since the mounting surface 13 faces the rear of the vehicle, it can face the operator during installation, facilitating observation and improving assembly convenience.

[0099] In the technical solution adopted in this embodiment, the mounting surface 13 of the hinge 2 faces the rear of the vehicle. During the vehicle assembly process, when the operator installs the hinge 2, the installation position is directly facing the operator. There is no need to use auxiliary tools for blind installation, nor is it necessary to repeatedly adjust the operating posture. The operator can observe the installation process in real time and accurately, making the assembly process more convenient. This helps to shorten the vehicle assembly time and reduce manufacturing costs.

[0100] Furthermore, refer to Figure 26 The vehicle body also includes a locking component 23, which is fixedly connected to the mounting surface 13 and the fixing arm 21. The locking direction of the locking component 23 is parallel to the length direction of the vehicle. Thus, when assembling the hinge 2, the operator can directly observe the installation position and the locking process of the locking component 23, further improving the convenience of the assembly operation. Optionally, the locking component 23 can be a bolt, rivet, etc. Connecting the vehicle body 1 and the fixing arm 21 with bolts is simple and convenient.

[0101] In one embodiment, the fixed arm 21 is provided with a first mounting hole, the extension direction of which is parallel to the length direction of the vehicle. Specifically, the vehicle body 1 is provided with a first mounting hole 131 that mates with the first mounting hole. The first mounting hole 131 extends along the length direction of the vehicle, the first mounting hole and the first mounting hole 131 are aligned, and are fixedly connected by a locking member 23. Optionally, the locking member 23 is a bolt, rivet, etc. Further, the first mounting hole 131 is a threaded hole. Connecting the vehicle body 1 and the fixed arm 21 with bolts is simple and convenient.

[0102] In one embodiment, two first mounting holes are provided, spaced apart along the width direction of the vehicle and symmetrically located on both sides of the connection position between the rotating arm 22 and the fixed arm 21. This improves the uniformity of force distribution on both sides of the rotating arm 22.

[0103] In one embodiment, the rotating arm 22 is fixedly connected to the side surface of the tailgate assembly facing the receiving cavity 11. It is understood that the rotating arm 22 is not fixed to the top wall of the tailgate assembly, but rather to the side surface of the tailgate assembly facing the receiving cavity 11. Thus, there is no need to reserve a mounting position for the hinge 2 in the thickness direction of the tailgate assembly, allowing the tailgate assembly to be made thinner, and the design of the recess 312 of the tailgate assembly to have greater flexibility.

[0104] In one embodiment, refer to Figure 16 The vehicle body 1 also has a limiting surface 14, which is adjacent to the mounting surface 13 and located below the rotating arm 22. The limiting surface 14 and the mounting surface 13 together form a rotation space in which the rotating arm 22 is rotatably positioned. It can be understood that the limiting surface 14 and the mounting surface 13 together form a rotation space, and the rotating arm 22 is rotatably positioned within this space, allowing the rotation path of the rotating arm 22 to be constrained. That is, when the tailgate panel 3 is closed, the rotating arm 22 rotates to the limiting surface 14 at most, at which point the tailgate panel 3 is completely closed. When the tailgate panel 3 is opened, the rotating arm 22 rotates away from the limiting surface 14.

[0105] In one embodiment, refer to Figure 26The rotating arm 22 includes a first sub-arm 221, a second sub-arm 222, and a third sub-arm 223. One end of the first sub-arm 221 is rotatably connected to the fixed arm 21, and the other end of the first sub-arm 221 is bent and connected to one end of the second sub-arm 222. The other end of the second sub-arm 222 is bent and connected to the third sub-arm 223. The third sub-arm 223 is inclined away from the middle of the tailgate assembly, and the side surface of the tailgate assembly facing the receiving cavity 11 is fixedly connected to the third sub-arm 223. In this way, the third sub-arm 223 of the rotating arm 22 can extend close to the edge of the tailgate assembly, avoiding other structural components in the middle of the tailgate assembly. Moreover, the second sub-arm 222 and the third sub-arm 223 of the rotating arm 22 extend along the height direction of the vehicle, making the assembly and adjustment of the hinge 2 more convenient when applied to the recess 312 of tailgate assemblies of different sizes.

[0106] In one embodiment, the angle between the second sub-arm 222 and the third sub-arm 223 is an obtuse angle. Thus, the third sub-arm 223 has a certain extension length in both the height and width directions of the vehicle, resulting in a good span in both the height and width directions of the mounting area between the third sub-arm 223 and the tailgate assembly, thereby improving the torsional stiffness of the tailgate assembly.

[0107] In one embodiment, refer to Figure 26 The third sub-arm 223 is provided with a second mounting hole 2231. Multiple second mounting holes 2231 are provided at intervals. The multiple second mounting holes 2231 are staggered in both the height and width directions of the vehicle. In this way, the fixing points of the third sub-arm 223 and the tailgate assembly can be distributed in both the height and width directions of the vehicle, further improving the torsional stiffness of the tailgate assembly. Furthermore, the first sub-arm 221, the second sub-arm 222, and the third sub-arm 223 are integrated into one unit, which can improve the overall structural strength.

[0108] In one embodiment, the tailgate assembly is made of aluminum alloy, which is lightweight and reduces the overall weight of the tailgate assembly. Specifically, the tailgate panel is made of aluminum alloy.

[0109] Furthermore, refer to Figure 18 The tailgate assembly is provided with a mounting protrusion 316, and the rotating arm 22 is fixedly connected to the mounting protrusion 316. In this way, the structural strength of the tailgate assembly at the hinge 2 mounting position can be improved, thereby ensuring the reliability of the connection between the tailgate assembly and the hinge 2 and improving the torsional stiffness of the tailgate assembly.

[0110] This invention also proposes a vehicle, which includes the body as described above. Specifically, the specific structure of the body refers to the above embodiments. Since the vehicle adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0111] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the embodiments of the present invention. Any equivalent structural transformations made under the technical concept of the present invention using the description and drawings of the embodiments of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the embodiments of the present invention.

Claims

1. A rear door assembly, characterized in that, The rear door assembly includes a rear door panel, which includes an inner panel, an outer panel, and a sealing plate. The inner panel and the outer panel form a cavity. The outer panel has a recessed lamp mounting space on its side facing away from the inner panel. The inner panel has a clearance notch to avoid the lamp mounting space. The sealing plate is located at the clearance notch and seals the inner panel and the outer panel.

2. The rear door assembly as described in claim 1, characterized in that, The inner plate includes an inner plate body, a support protrusion protruding from the side surface of the inner plate body facing the cavity, and an outwardly bent portion that is bent away from the cavity and connected to the support protrusion. The outwardly bent portion is located at the edge of the inner plate body, and the support protrusion and the outwardly bent portion form the clearance notch. The sealing plate includes a main body and a sealing portion that is bent and connected to the main body. The main body is attached to the inner surface of the support protrusion facing the cavity, and the sealing portion is bent away from the cavity and seals the outwardly bent portion and the outer plate.

3. The rear door assembly as described in claim 2, characterized in that, The outer panel includes a first outer sub-panel, a second outer sub-panel, and a fourth outer sub-panel connected together, wherein the second outer sub-panel connects the first outer sub-panel and the fourth outer sub-panel; The sealing part includes a first sealing sub-part, a second sealing sub-part, and a third sealing sub-part connected in sequence; the first outer sub-plate and the outward-turned part are located on opposite sides of the first sealing sub-part, a portion of the first sealing sub-part is in contact with the outward-turned part, and the first sealing sub-part is in contact with the outer plate; the second outer sub-plate and the outward-turned part are located on opposite sides of the third sealing sub-part, and are both sealed to the third sealing sub-part; the second sealing sub-part is sealed to the fourth outer sub-plate.

4. The rear door assembly as described in claim 3, characterized in that, The outer plate also includes a third outer sub-plate, which is disposed on the side of the first outer sub-plate facing the inner plate and connects the first outer sub-plate and the fourth outer sub-plate. The fourth outer sub-plate connects the third outer sub-plate and the second outer plate. The third outer sub-plate has an extension portion that extends close to the inner plate and is located on the side of the first sealing sub-part facing away from the cavity. The extension portion and the first sealing sub-part are connected by a sealing structure.

5. The rear door assembly as described in claim 2, characterized in that, The main body and the supporting protrusion are fixedly connected by a welding point structure; And / or, the main body is provided with a strut mounting hole for mounting an electric strut.

6. The rear door assembly as described in claim 2, characterized in that, The outer panel is provided with an assembly hole, and the sealing part is provided with an avoidance notch, which is used to avoid the assembly hole.

7. The rear door assembly as described in claim 6, characterized in that, The rear door assembly also includes a lamp trim panel, and the assembly hole includes a first assembly sub-hole and a second assembly sub-hole spaced apart. The first assembly sub-hole is used to fix the lamp trim panel, and the second assembly hole is used to fix the lamp.

8. The rear door assembly as described in claim 7, characterized in that, The lamp panel is provided with a first buckle, which engages with the first assembly sub-hole.

9. The rear door assembly as described in claim 7, characterized in that, The lamp panel is provided with a second buckle, which is used to fasten the lamp.

10. The rear door assembly as described in claim 7, characterized in that, The lamp panel is also provided with abutting arms, which cooperate with the lamp panel to abut against the opposite sides of the outer panel.

11. A vehicle, characterized in that, The vehicle includes a tailgate assembly as described in any one of claims 1 to 10.

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