Vehicle tailgate device and vehicle thereof

Abstract

The application relates to the technical field of vehicles, in particular to a vehicle tail door device and a vehicle. The vehicle tail door device comprises a mother door, a child door and a hinging mechanism, the hinging mechanism is arranged on a vehicle body, and the mother door and the child door are hinged to the hinging mechanism; the hinging mechanism comprises a mounting seat, a first connecting seat and a second connecting seat; the mounting seat is fixed on the vehicle body, and the mounting seat is provided with a first mounting groove; one end of the first connecting seat is accommodated in the first mounting groove and rotationally connected with the mounting seat, and the first connecting seat is provided with a second mounting groove; the other end of the first connecting seat is connected with the mother door; one end of the second connecting seat is accommodated in the second mounting groove and rotationally connected with the mounting seat; and the other end of the second connecting seat is connected with the child door. The application can effectively reduce the occupied space of the hinging mechanism in the width and height directions of the vehicle, and make the structure more compact.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a vehicle tailgate device and the vehicle thereof. Background Technology

[0002] For larger vehicle types, such as MPVs (Multi-Purpose Vehicles), the tailgate is typically designed as a double-door (i.e., a mother-daughter door). The mother door connects to the vehicle body and opens and closes the opening at the rear of the vehicle, while the daughter door opens and closes the opening on the mother door. This allows users to choose the appropriate opening to retrieve large or small items depending on the scenario and the size of the item. With the development of vehicle intelligence, vehicles are equipped with high-precision positioning antennas, satellite antennas, etc. The presence of these antennas provides the vehicle with accurate positioning and enhances signal reception.

[0003] Currently, both the main door and the auxiliary door are hinged to the vehicle body via hinged joints. The hinged joint in this technology includes a base and two connecting seats that connect the main and auxiliary doors. The base is mounted on the vehicle body, with one connecting seat clamped to the outside of the base and connected to the auxiliary door, and the other connecting seat connected to the inside of the base and connected to the auxiliary door. This design obviously results in one connecting seat being cantilevered, leading to an unreasonable layout and lower connection strength at that location. Utility Model Content

[0004] Therefore, it is necessary to provide a vehicle tailgate device and vehicle with high structural strength.

[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0006] A vehicle tailgate device includes a main door, a secondary door, and a hinge mechanism. The hinge mechanism is used for mounting on a vehicle body, and both the main door and the secondary door are hinged to the hinge mechanism. The hinge mechanism includes a mounting base, a first connecting base, and a second connecting base. The mounting base is used for fixing to the vehicle body and has a first mounting groove. One end of the first connecting base is received in the first mounting groove and rotatably connected to the mounting base, and has a second mounting groove. The other end of the first connecting base is connected to the main door. One end of the second connecting base is received in the second mounting groove and rotatably connected to the mounting base, and the other end of the second connecting base is connected to the secondary door.

[0007] In one embodiment, an adapter shaft is provided in the first mounting slot, and both the first connecting seat and the second connecting seat are hinged to the adapter shaft.

[0008] In one embodiment, the first mounting slot has a first opening and the second mounting slot has a second opening; in the height direction of the vehicle, both the first opening and the second opening are upward-facing, and the first opening and the second opening are flush.

[0009] In one embodiment, the first connecting seat includes a first seat body and a first connecting plate. One end of the first seat body extends into the first mounting groove, and the other end extends toward the mother door. The first connecting plate is installed on the end of the first seat body away from the mounting seat and is fitted to the mother door.

[0010] In one embodiment, the first seat is U-shaped; and / or, the first connecting seat is U-shaped.

[0011] In one embodiment, the first base and the first connecting plate are configured as an integral structure.

[0012] In one embodiment, a first reinforcing groove is recessed on the surface of the first connecting plate facing the mother door.

[0013] In one embodiment, the second connecting seat includes a second connecting plate and a bending plate. One end of the second connecting plate is received in the second mounting groove, and the other end extends toward the sub-door and is connected to the bending plate, and the bending plate is in contact with the sub-door.

[0014] In one embodiment, a second reinforcing groove is recessed on the surface of the second connecting plate; and / or, the second connecting plate is arc-shaped.

[0015] This application also provides the following technical solutions:

[0016] A vehicle, including a body and a vehicle tailgate device in any of the above embodiments.

[0017] Compared to existing technologies, the vehicle tailgate device and its vehicle are connected by a first mounting slot on the mounting base and a second mounting slot on the first connecting base. In other words, the mounting base, the first connecting base, and the second connecting base are nested and stacked sequentially. Thus, at the mounting base location, the maximum size in both the width and height directions of the vehicle is the size of the mounting base itself, effectively reducing the space occupied by the hinge mechanism in the width and height directions of the vehicle and making the structure more compact. Simultaneously, since one end of the first connecting base is housed within the first mounting slot, this end of the first connecting base in the first mounting slot participates entirely in the connection with the mounting base as a complete unit. Compared to a single cantilever, its structural strength is greater, and the connection is more stable. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the rear of the vehicle provided in this application.

[0020] Figure 2 This is a structural schematic diagram from one perspective of the main door in the open state provided in this application.

[0021] Figure 3 Provided for this application Figure 2 Side view.

[0022] Figure 4 This is a structural diagram of the sub-door in the open state provided in this application.

[0023] Figure 5 Provided for this application Figure 4 Side view.

[0024] Figure 6 This is a structural schematic diagram from another perspective of the main door in the open state provided in this application.

[0025] Figure 7 This is a state diagram showing the state when both the main door and the child door are open, as provided in this application.

[0026] Figure 8 A cross-sectional view of the vehicle tailgate device provided in this application.

[0027] Figure 9 A cross-sectional view of the vehicle tailgate assembly provided in this application at the position of the main door.

[0028] Figure 10 A cross-sectional view of the vehicle tailgate assembly provided in this application at the sub-door position.

[0029] Figure 11 A schematic diagram of the installation structure of the antenna controller provided in this application.

[0030] Figure 12 This is a schematic diagram showing the positional relationship between the antenna controller and the wiring harness provided in this application.

[0031] Figure 13 Provided for this application Figure 12 A magnified view of the location of the antenna controller.

[0032] Figure 14 Provided for this application Figure 13 The structural diagram of the antenna controller is omitted.

[0033] Figure 15 Enlarged cross-sectional view of the vehicle tailgate device provided in this application at the location of the antenna controller.

[0034] Figure 16 A schematic diagram of the structure of the intelligent electrical device provided in this application.

[0035] Figure 17 A cross-sectional view of the vehicle tailgate device provided in this application at the location of the external microphone.

[0036] Figure 18 A partial schematic diagram showing the locking of the main door and the secondary door by a locking mechanism, as provided in this application.

[0037] Figure 19 A schematic diagram of the hinge mechanism provided in this application mounted on the vehicle body.

[0038] Figure 20 This is a schematic diagram of the hinge mechanism provided in this application when the sub-door is in the open state.

[0039] Figure 21 A three-dimensional structural diagram of the hinge mechanism provided in this application.

[0040] Figure 22 This is a three-dimensional structural diagram of the hinge mechanism provided in this application from another perspective.

[0041] Figure 23 An enlarged cross-sectional view of the vehicle tailgate assembly provided in this application at the location of the second seal.

[0042] Figure 24 A cross-sectional view of the second seal provided in this application.

[0043] The labels in the attached figures are explained as follows:

[0044] 1000. Vehicle; 100. Tailgate assembly; 200. Body; 201. First opening; 10. Main door; 11. Second opening; 12. Mounting part; 20. Sub-door; 21. Third opening; 22. Main body; 221. Recess; 23. Rear window glass; 24. Spoiler; 25. Antenna controller; 251. High-precision positioning antenna controller; 252. Satellite antenna controller; 253. Gap; 254. Mounting hole; 255. 26. Limiting hole; 26. Support plate; 261. Accommodating space; 262. Mounting post; 263. Threaded hole; 264. Limiting post; 27. Front and rear view camera; 28. Brake light; 29. ​​Intelligent electrical components; 291. 360-degree surround view camera; 292. Streaming media camera; 293. External microphone; 30. Through-type taillight; 40. Support rod assembly; 41. First electric strut; 411. First movable end; 412. First fixed end ; 421. Second movable end; 422. Second fixed end; 50. Wiring harness; 60. Locking mechanism; 61. Mating part; 70. Hinge mechanism; 71. Mounting base; 711. First mounting groove; 712. Adapter shaft; 713. First opening; 72. First connecting seat; 721. Second mounting groove; 722. Second opening; 723. First base body; 724. First connecting plate; 725. First reinforcing groove; 7 3. Second connecting seat; 731. Second connecting plate; 732. Bending plate; 733. Second reinforcing groove; 80. Interior panel; 300. First sealing element; 400. Second sealing element; 401. Sealing body; 402. First lip; 403. Second lip; 404. Sealing groove; 405. Protrusion; 406. Third lip; 407. Guide port; 408. Reinforcing element; 409. Receiving groove; 600. Vehicle rear sealing system. Detailed Implementation

[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0050] Please see Figure 1 and Figure 2 This application provides a vehicle 1000, which includes a body 200 and a tailgate device 100 (hereinafter referred to as tailgate device 100). A first opening 201 is provided at the rear of the body 200 in the length direction X of the vehicle 1000. The tailgate device 100, also referred to as a trunk door device, is rotatably connected to the rear of the body 200 and is used to open or close the first opening 201. When a user needs to retrieve or place items in the trunk, the tailgate device 100 can be opened, thereby opening the first opening 201; after the items have been retrieved or placed, the first opening 201 can be closed through the tailgate device 100.

[0051] In this embodiment, the vehicle 1000 is generally a medium to large-sized vehicle, such as a large SUV or MPV. A common feature of these vehicles is their relatively high overall height, resulting in a deeper trunk in the Z-direction along the vehicle's height. Consequently, the tailgate device 100 is also relatively large. However, in situations with limited space or when retrieving small items, a larger tailgate device 100 may be unable to open, have a limited opening angle, or be cumbersome to open, leading to a poor overall user experience.

[0052] To address the aforementioned technical problems, existing technologies configure the tailgate device 100 as a combination of a sub-door and a main door (i.e., a combination of a small door and a large door). In situations with limited space or when retrieving small items, the sub-door or small door can be opened; conversely, when retrieving large items or requiring a larger opening, the main door or large door can be opened. However, with further technological advancements and evolving needs, users' demands for intelligent vehicle doors are increasing; simultaneously, the tailgate needs to accommodate more structures, such as a continuous taillight, various auxiliary cameras, and a tailgate controller. This creates conflicts in the placement of the intelligent tailgate and these components, leading to layout difficulties. To address this, this application optimizes the structure and layout to effectively solve one or more of the aforementioned problems.

[0053] For details, please refer to Figures 2 to 10The vehicle tailgate assembly 100 includes a main door 10, a secondary door 20, a through-type taillight 30, and a support rod assembly 40. The main door 10 has a second opening 11, and the secondary door 20 can rotate relative to the main door 10 to open and close the second opening 11. The through-type taillight 30 is mounted on the secondary door 20 and extends through the secondary door 20 along the width direction Y of the vehicle 1000. At least one set of support rod assemblies 40 is provided, and at least one set of support rod assemblies 40 is located on one side of the main door 10 in the width direction Y of the vehicle 1000. The support rod assembly 40 includes a first electric support rod 41 and a second electric support rod 42, and the first electric support rod 41 has oppositely arranged... The first movable end 411 and the first fixed end 412 are connected to the main door 10 and the first fixed end 412 are used to rotatably connect to the vehicle body 200. The second electric strut 42 has a second movable end 421 and a second fixed end 422 that are arranged opposite to each other. The second movable end 421 is connected to the sub-door 20 and the second fixed end 422 is used to rotatably connect to the vehicle body 200. In the height direction Z of the vehicle 1000, when the tailgate device 100 is in the closed state, the first fixed end 412 is located above the first movable end 411 and the second fixed end 422 is located below the second movable end 421. It is understandable that the first electric strut 41 and the second electric strut 42 provided in this application realize the electric control of the main door 10 and the daughter door 20, making the opening of the vehicle tailgate more intelligent. Meanwhile, regarding the arrangement of the first electric strut 41 and the second electric strut 42, the first fixed end 412 is positioned above the first movable end 411, at which point the first electric strut 41 is also referred to as the positive strut, and the second fixed end 422 is positioned below the second movable end 421, at which point the second electric strut 42 is also referred to as the negative strut. That is, this application uses a combination of positive and negative electric struts for the main door 10 and the daughter door 20. When a through-type taillight 30 is installed on the daughter door 20, because the second fixed end 422 of the second electric strut 42 is positioned relatively below, and the envelope swept by the second fixed end 422 during movement is smaller, meaning the movement space required by the second fixed end 422 is smaller. Thus, even if the length of the second electric strut 42 increases, the mounting point for installing the second fixed end 422 can be moved downwards in the height direction Z of the vehicle 1000 to install the second electric strut 42, and it will not interfere with the through taillight 30 during the movement.

[0054] Meanwhile, in this application, the first fixed end 412 and the second fixed end 422 are arranged vertically in the height direction Z of the vehicle, i.e., they are staggered. In other words, the first fixed end 412 and the second fixed end 422 are not fixed to the same position on the vehicle body 200. This arrangement can prevent the vehicle body 200 from being subjected to excessive force at the same position, which could lead to dents or damage.

[0055] Furthermore, unlike the existing "double-door" or "split-door" designs, where the two tailgates open by rotating relative to each other in the vehicle's height direction Z (one tailgate flips up and the other flips down), and the two doors open by rotating relative to each other in the vehicle's width direction Y (left and right), in this application, both the main door 10 and the secondary door 20 rotate uniformly upwards in the vehicle's height direction Z to open the first opening 201 and the second opening 11.

[0056] In one embodiment, please continue to refer to Figure 5 , Figure 7 as well as Figure 8 The rear door 20 includes a main body 22 and a rear window glass 23. The main body 22 is rotatably connected to the rear of the vehicle 1000, i.e., the rear of the vehicle body 200. A third opening 21 is provided on the main body 22, and the rear window glass 23 is installed on the main body 22 and covers the third opening 21; wherein, the area of ​​the third opening 21 is smaller than the area of ​​the second opening 11. It should be explained that the second opening 11 is for users to take out and put in items, and the third opening 21 is a rearview window, through which drivers and passengers can observe the rear of the vehicle 1000 through the second opening 11 and then through the third opening 21, thereby improving driving safety and experience.

[0057] Preferably, please refer to Figure 7 A groove 221 is formed on the main body 22, and a third opening 21 is located in the groove 221. The rear window glass 23 is fixed in the groove 221 by sealant. In the length direction X of the vehicle 1000, the rear window glass 23 is basically flush with the groove 221 or the surface of the main body 22, so as to make the structure of the sub-door 20 more integrated and compact.

[0058] Please refer to Figure 3 and Figure 11The sub-gate 20 also includes a spoiler 24 and an antenna controller 25. The spoiler 24 is mounted on the main body 22, and the antenna controller 25 is mounted in the middle or near the middle of the main body 22. The spoiler 24 mainly guides the airflow at the rear of the vehicle 1000, making the vehicle 1000 run more stably. The antenna controller 25 is mainly used for the transmission, reception, and processing of various signals, thereby realizing the autonomous driving and human-machine interaction of the vehicle 1000. In related technologies, the antenna controller 25 is generally mounted on the spoiler 24 and located on both sides of the spoiler 24 in the vehicle width direction Y. With this arrangement, because the tailgate of the vehicle 1000 in this application is a double-layered door, the thickness in the length direction X of the vehicle 1000 is relatively thick compared to a single-layered door, resulting in a larger width of the spoiler 24 in the vehicle length direction X, which weakens the overall structural strength. Furthermore, when positioned at the spoiler 24, the wiring harness needs to pass through the spoiler 24 first, and then through the sub-door 20, to achieve connection with the tailgate control (not shown). In this embodiment, the antenna controller 25 is located in the middle of the main body 22 or near the middle of the main body 22; that is, the antenna controller 25 is mounted on the sub-door 20. In this way, on the one hand, the wiring harness 50 can be directly connected to the controller on the vehicle tailgate, reducing the wiring harness routing and connectors. On the other hand, after the antenna controller 25 is located in the middle of the main body 22, no space needs to be reserved on both sides of the vehicle width direction Y. Thus, the size of the spoiler 24 can be made as small as possible in the vehicle length direction X. With the sides becoming smaller, the width of the spoiler 24 in the vehicle length direction X will also become smaller, which improves the overall structural strength.

[0059] In one embodiment, please refer to Figures 11 to 12 The antenna controller 25 includes a high-precision positioning antenna controller 251 and a satellite antenna controller 252. The high-precision positioning antenna controller 251 and the satellite antenna controller 252 are positioned on either side of the central axis L along the width Y direction of the vehicle 1000, thus avoiding mutual interference between the antenna controllers 25. Here, the high-precision positioning antenna primarily provides high-precision positioning support for the vehicle 1000 in complex environments, improving navigation progress, enhancing signal stability, and assisting in assisted driving and intelligent control of the vehicle 1000. The satellite antenna controller's main function is to collect weak signals transmitted from satellites and remove noise and interference as much as possible, thereby improving the vehicle's signal reception capability in remote areas, ensuring accurate positioning of the navigation system, and guaranteeing call speed and quality.

[0060] Of course, it is not limited to this. The antenna controller 25 may also include a navigation antenna controller, a communication antenna controller, etc. The antenna controller 25 can be selected and set according to the requirements.

[0061] Here, the high-precision positioning antenna controller is an existing technology. It refers to an integrated device that combines a "high-precision satellite signal receiving antenna" and a "positioning signal processing control module". Its core function is to receive carrier phase signals from satellite navigation systems (such as GPS, Beidou, GLONASS, Galileo) and combine them with algorithms such as RTK (real-time dynamic positioning technology) and PPP (precision point positioning technology) to achieve centimeter-level / sub-meter-level positioning of vehicles in three-dimensional space. The positioning data is then transmitted to the vehicle control system (such as the autonomous driving controller and navigation system) in real time, providing positioning support for functions such as autonomous driving, precise navigation, and lane-level assistance. Satellite antenna controllers are existing technology. They refer to integrated devices that combine a "satellite signal receiving antenna" and a "signal conditioning control module". Their core function is to receive radio frequency signals from global satellite navigation systems (GPS, BeiDou, GLONASS, Galileo, etc.) or satellite communication systems. After filtering, amplification, and anti-interference processing, the effective signals are transmitted to vehicle-related control systems (such as navigation modules, high-precision positioning antenna controllers, and vehicle networking terminals). At the same time, they have control functions such as signal status monitoring and power adjustment, providing stable signal support for vehicle positioning, navigation, and remote communication.

[0062] In one embodiment, such as Figures 13 to 15 As shown, a gap 253 is formed between the antenna controller 25 and the sub-door 20 in the height direction Z of the vehicle 1000; the vehicle tailgate device 100 also includes a wiring harness 50, which extends along the width direction Y of the vehicle and passes through the gap 253. That is, the wiring harness 50 is located relatively below the antenna controller 25. This arrangement serves two purposes: firstly, the gap 253 allows for a separation between the antenna controller 25 and the sub-door 20, thus preventing direct contact and relative movement that could cause abnormal noise; secondly, it makes full use of existing space to implement the wiring harness 50 layout, effectively saving other space, and also avoids interference from the magnetic field generated when the wiring harness 50 is energized on the signal of the antenna controller 25, making the transmission and reception of the antenna controller 25 signal more accurate.

[0063] Furthermore, such as Figure 14 As shown, the sub-gate 20 is provided with multiple support plates 26, and an accommodating space 261 is formed between two adjacent support plates 26. The antenna controller 25 is accommodated in the accommodating space 261 and installed on the support plate 26. It can be understood that the accommodating space 261 can initially position the antenna controller 25 so that the antenna controller 25 can be quickly assembled.

[0064] In this embodiment, the support plate 26 and the main body 22 are integrated into one structure, which can effectively improve the structural strength of the support plate 26, thereby improving the reliability and stability of the antenna controller 25 installation. Here, the support plate 26 and the main body 22 can be integrated by means of integral casting or other methods.

[0065] For further information, please continue to refer to [link / reference]. Figure 13 and Figure 14 The support plate 26 has a mounting post 262 with a threaded hole 263. The antenna controller 25 has a mounting hole 254, and the threaded hole 263 corresponds to the mounting hole 254. One end of the threaded component passes through the mounting hole 254 and is threadedly connected to the threaded hole 263. That is, the antenna controller 25 is fixed in a detachable manner using a threaded component, making installation and disassembly more convenient. Here, the threaded component can be a screw or bolt, etc.

[0066] Preferably, please continue to refer to Figure 14 The support plate 26 is also provided with a limiting post 264, and the antenna controller 25 is provided with a limiting hole 255. The limiting post 264 and the limiting hole 255 can be matched for limiting. In this way, during installation, the antenna controller 25 can be limited by the limiting post 264 first, and then the threaded part is used to pass through the corresponding mounting hole 254 and connect with the threaded hole 263.

[0067] In this embodiment, multiple limiting posts 264 can be set to simultaneously limit the antenna controller 25, thereby improving its limiting and installation stability. Here, the limiting posts 264 and the support plate 26 are also configured as a single unit.

[0068] In one embodiment, please refer to Figure 11 The sub-door 20 is also equipped with a rearview camera 27, which is electrically connected to the wiring harness 50 for power supply. The rearview camera 27 is the core component of the reversing image system. It assists the driver in observing blind spots by transmitting the rear view image to the vehicle display screen in real time. It is usually linked to the reversing light power supply and is automatically activated when reverse gear is engaged.

[0069] Please refer to Figure 12 The sub-door 20 is also equipped with a brake light 28, which is electrically connected to the wiring harness 50 and triggers the brakes to transmit a deceleration or stopping warning signal to the following vehicle to prevent rear-end collisions.

[0070] In one embodiment, please refer to Figure 16 and Figure 17The main door 10 is equipped with intelligent electrical components 29; these components include at least one of the following: a 360-degree surround-view camera 291, a streaming media camera 292, and an external microphone 293. The 360-degree surround-view camera 291 captures images of the vehicle 1000's surroundings. The streaming media camera 292 is primarily used in conjunction with the in-vehicle streaming media rearview mirror to provide real-time information about the rear of the vehicle 1000. The external microphone 293 is mainly used to collect sound, allowing users to control the main door 10 and the secondary door 20 via voice commands, thus enabling human-vehicle interaction.

[0071] Please return Figure 4 The support rod assembly 40 is configured in two sets, one set located on one side of the main door 10 in the width direction Y of the vehicle 1000, and the other set located on the other side of the main door 10. This allows for support of both the main and auxiliary doors 10 on both the left and right sides in the width direction Y of the vehicle. This not only improves the overall stability of the tailgate opening but also enhances its stability.

[0072] Furthermore, in each set of support rods 40, the first electric support rod 41 and the second electric support rod 42 are arranged in a cross configuration; and in the width direction Y of the vehicle 1000, the second electric support rod 42 is located on the outside of the first electric support rod 41, so that the main door 10 is not interfered with during opening and closing, ensuring that it can be opened normally.

[0073] Please refer to Figure 4 and Figure 18 The vehicle tailgate device 100 also includes a locking mechanism 60 and a mating part 61. One of the locking mechanism 60 and the mating part 61 is disposed on the main door 10 and the other is disposed on the secondary door 20. The locking mechanism 60 can lock with the mating part 61, and the secondary door 20 is closed relative to the main door 10.

[0074] In this embodiment, the locking mechanism 60 is provided on the sub-door 20, and the mating part 61 is provided on the main door 10.

[0075] Furthermore, the locking mechanism 60 is configured as an electronic magnetic lock. When the child door 20 is opened to a preset angle p relative to the mother door 10, as the mother door 10 moves, the mother door 10 and the child door 20 can be magnetically engaged by the electronic magnetic lock and then move synchronously, thereby making the tailgate device 100 more stable when opening and closing as a whole. In other words, when the child door 20 is opened to a preset angle p relative to the mother door 10, the mother door 10 and the child door 20 form a whole and then move synchronously together.

[0076] Here, the electronic magnetic lock is a conventional technology and will not be elaborated upon. The mating part 61 is a latch or hook, etc. Of course, the structure of the mating part 61 is not limited to the types shown in the examples. It only needs to be able to cooperate with the electronic magnetic lock to achieve the locking between the main door 10 and the child door 20.

[0077] For example, when the main door 10 is closed to the vehicle body 200, it can be considered to be at 0° (i.e., 0 angle). When the main door 10 is closed, and the secondary door 20 is also closed to the main door 10, it can be considered to be at 0°. The main door 10 can be opened to 80°, and the secondary door 20 can also be opened to 80°. Along the length direction X of the vehicle 1000, the rear end of the secondary door 20 at the maximum angle can be 300mm or more shorter than the rear end of the main door 10 at the maximum angle, for example, 300mm shorter, 325mm shorter, etc.

[0078] In some usage scenarios, such as when the preset angle p is 20 degrees, the main door 10 is closed, meaning the secondary door 20 is open at a 20-degree angle relative to the main door 10. If it's inconvenient to retrieve items through the second opening 11, the main door 10 can be opened. The main door 10 will first engage with the secondary door 20 at the 20-degree position via an electronic magnetic lock and mating part 61, forming a single unit, before continuing the opening or closing action. Another example is when parking for a picnic; the secondary door 20 is opened for ventilation. The preset angle p can be a relatively large angle such as 60 or 70 degrees. When it's necessary to open the main door 10, it can be controlled to open, and the angle of the main door 10 is not affected by the secondary door 20. However, when the main door 10 opens to the current angle of the secondary door 20, it will engage with the secondary door 20 at that angle, forming a single unit. This means the main door 10 can open at 1 degree, 10 degrees, 20 degrees, 30 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, etc. For example, when the mother door 10 is opened to 60 or 70 degrees, it will be attracted to the daughter door 20 to form a whole and then continue to operate.

[0079] Please refer to Figure 6 and Figure 8 The vehicle tailgate device 100 also includes a hinge mechanism 70, which is mounted on the vehicle body 200. Both the main door 10 and the daughter door 20 are hinged to the hinge mechanism 70, thereby enabling the main door 10 and the daughter door 20 to open or close relative to the vehicle body 200.

[0080] In this embodiment, the main door 10 and the daughter door 20 are hinged to the same hinge mechanism 70 at the same location on the vehicle body 200. This reduces the corresponding structural layout and improves the utilization rate of the rear space of the vehicle body 200.

[0081] Furthermore, multiple hinge mechanisms 70 can be provided, and these multiple hinge mechanisms 70 are spaced apart along the width direction Y of the vehicle 1000, so that the main door 10 and the daughter door 20 have multiple positions to connect with the vehicle body 200 in the width direction Y of the vehicle 1000, effectively improving the stability of the installation and movement of the main door 10 and the daughter door 20. Here, the number of hinge mechanisms 70 can be set to two or three.

[0082] Please continue to refer to this. Figure 6 , Figures 19 to 21 The hinge mechanism 70 includes a mounting base 71, a first connecting base 72, and a second connecting base 73. The mounting base 71 is fixed to the vehicle body 200 and has a first mounting groove 711. One end of the first connecting base 72 is received in the first mounting groove 711 and rotatably connected to the mounting base 71, and has a second mounting groove 721. The other end of the first connecting base 72 is connected to the main door 10. One end of the second connecting base 73 is received in the second mounting groove 721 and rotatably connected to the mounting base 71. The other end of the second connecting base 73 is connected to the secondary door 20. Thus, the mounting base 71, the first connecting base 72, and the second connecting base 73 are nested and stacked sequentially. Therefore, at the position of the mounting base 71, regardless of whether it is in the width direction Y or the height direction Z of the vehicle 1000, its maximum size is the size of the mounting base 71 itself. This effectively reduces the space occupied by the hinge mechanism 70 in the width direction Y and the height direction Z of the vehicle 1000, and makes the structure more compact. Meanwhile, since one end of the first connecting seat 72 is housed in the first mounting groove 711, the end of the first connecting seat 72 located in the first mounting groove 711 is a complete unit that participates in the connection with the mounting seat 71. Compared with a single cantilever, its structural strength is greater and the connection is more stable.

[0083] Further, please refer to Figure 21 A transition shaft 712 is provided in the first mounting groove 711, and the first connecting seat 72 and the second connecting seat 73 are both hinged to the transition shaft 712. In this way, the mother door 10 and the daughter door 20 are hinged on the same transition shaft 712, which effectively reduces installation errors and movement errors and improves the consistency of their overall movement.

[0084] Specifically, the first mounting groove 711 has a first opening 713, and the second mounting groove 721 has a second opening 722; in the height direction Z of the vehicle 1000, both the first opening 713 and the second opening 722 are upward, and the first opening 713 and the second opening 722 are flush.

[0085] In one embodiment, please refer to Figure 20 as well as Figure 21The first connecting seat 72 includes a first seat body 723 and a first connecting plate 724. One end of the first seat body 723 extends into the first mounting groove 711, and the other end extends V toward the mother door 10. The first connecting plate 724 is installed on the end of the first seat body 723 away from the mounting seat 71 and is fitted to the mother door 10.

[0086] Furthermore, the first seat 723 is U-shaped, and the upper U-shaped groove of the first seat 723 is the second mounting groove 721. The first seat 723 extends approximately along the length X of the vehicle 1000 towards the main door 10. Of course, it is not limited to this; the first seat 723 can also be arc-shaped or straight, etc.

[0087] In this embodiment, the first base 723 and the first connecting plate 724 are configured as an integral structure to improve the overall structural strength of the first connecting base 72. Here, the first base 723 and the first connecting plate 724 can be integrally cast.

[0088] Further, please refer to Figure 21 as well as Figure 22 A first reinforcing groove 725 is recessed on the surface of the first connecting plate 724 facing the mother door 10 to further strengthen the structural strength of the first connecting plate 724, thereby improving the service life of the first connecting seat 72.

[0089] Preferably, the first reinforcing groove 725 is connected to the upper U-shaped groove of the first base 723.

[0090] Please refer to Figure 21 as well as Figure 22 The second connecting seat 73 includes a second connecting plate 731 and a bending plate 732. One end of the second connecting plate 731 is housed in the second mounting groove 721, and the other end extends in the direction V toward the sub-door 20 and is connected to the bending plate 732. The bending plate 732 is in contact with the sub-door 20.

[0091] Furthermore, a second reinforcing groove 733 is recessed on the surface of the second connecting plate 731 to effectively improve the bending strength and tensile strength of the second connecting plate 731.

[0092] Preferably, the second connecting plate 731 is arranged in an arc shape.

[0093] Please refer to Figure 2 and Figure 4In one embodiment, this application also provides a vehicle rear sealing system 600, which includes a vehicle body 200, a main door 10, a secondary door 20, and an interior panel 80. The rear of the vehicle body 200 has a first opening 201. The main door 10 is rotatably mounted on the vehicle body 200 and can open and close the first opening 201. The main door 10 also has a second opening 11. The secondary door 20 is rotatably mounted on the vehicle body 200 and can open and close the second opening 11. The interior panel 80 is installed on the inner side of the secondary door 20 to make the interior of the vehicle 1000 more comfortable in this location. Here, "inner side" and "outer side" are relative concepts. In this embodiment, the interior and exterior of the vehicle 1000 are used as references. The inner side is defined as the side located inside the vehicle 1000 or facing the interior of the vehicle 1000, and the outer side is defined as the side located outside the vehicle 1000 or facing the exterior of the vehicle 1000. Returning to the “inner side of sub-door 20” described in this embodiment, that is, the side of sub-door 20 located facing the interior of vehicle 1000.

[0094] It should be noted that the mother door 10, daughter door 20, body 200, etc., which have been described in the previous sections, will not be repeated here. Please refer to the descriptions in the previous sections.

[0095] Please continue to refer to this. Figure 2 , Figure 4 , Figure 23 and Figure 24 The vehicle rear sealing system 600 also includes a first seal 300 and a second seal 400. The first seal 300 is installed in the first opening 201 and is used to cooperate with the main door 10 in the closed state to seal the first opening 201. The second seal 400 includes a sealing body 401, a first lip 402 and a second lip 403. The sealing body 401 has a sealing groove 404 with an opening. The sealing body 401 is sealed and snapped onto the edge (i.e., the edge) of the second opening 11 through the opening and the sealing groove 404. The first lip 402 is installed in the sealing body 401 and is located outside the second opening 11. When the sub-door 20 is closed, it cooperates with the sub-door 20 to seal the second opening 11. The second lip 403 is installed in the sealing body 401 and is located inside the second opening 11. It can cover the edge of the interior panel 80 and seal against the interior panel 80. Thus, by setting the first sealing element 300 and the second sealing element 400, the first opening 201 and the second opening 11 can be sealed respectively. At the same time, at the second opening 11, the first lip 402 and the second lip 403 achieve a double seal at the second opening 11 and cover the edge of the inner interior panel 80, making the appearance cleaner; in addition, the sealing lip is generally a flexible component, which can also prevent the interior panel 80 from scratching the user.

[0096] Furthermore, the first sealing element 300 can be configured as a rubber ring or a silicone ring, etc. Similarly, the second sealing element 400 can be configured as a rubber ring or a silicone ring, etc.

[0097] In one embodiment, such as Figure 24 As shown, a receiving groove 409 is formed between the second lip 403 and the sealing body 401. The edge of the interior panel 80 is received in the receiving groove 409 and abuts against the inner wall of the receiving groove 409, thereby covering the edge of the interior panel 80.

[0098] Furthermore, such as Figure 24 As shown, a protrusion 405 is provided on the inner wall of the receiving groove 409, and the protrusion 405 abuts against the interior panel 80. In this way, the protrusion 405 makes the assembly between the receiving groove 409 and the interior panel 80 more compact, effectively ensuring that the second lip 403 abuts against the interior panel 80 and improving the stability of the assembly between the two.

[0099] Please continue to refer to this. Figure 24 The first lip 402 is hollow. This hollow structure allows for greater deformation of the first lip 402 under pressure, resulting in a larger contact area between the first lip 402 and the sub-door 20, thus improving the sealing effect between them.

[0100] like Figure 23 and Figure 24 As shown, in the direction V perpendicular to the depth of the sealing groove 404, a third lip 406 is provided on the inner sidewall of the sealing groove 404. The portion of the female door 10 at the second opening 11 is configured as a mounting portion 12. In the thickness direction of the mounting portion 12, the third lip 406 seals against the surface of the mounting portion 12. Here, as... Figure 23 As shown, T represents the depth direction of the sealing groove 404, and V represents the direction perpendicular to the depth of the sealing groove 404. The depth direction T is also set at an angle to the vehicle height direction Z, and V is also set at an angle to the vehicle height direction Z.

[0101] In one embodiment, multiple third lips 406 are provided, and the multiple third lips 406 are spaced apart along the depth direction of the sealing groove 404; and each third lip 406 is inclined relative to the depth direction T of the sealing groove 404. Here, the arrangement of the third lips 406, when the portion of the female door 10 at the second opening 11 extends into the sealing groove 404, the third lips 406 are compressed and provide a reaction force, thereby making the contact between the portion of the female door 10 extending into the sealing groove 404 and the sealing body 401 tighter, improving the reliability of sealing and assembly.

[0102] like Figure 23 and Figure 24As shown, in the direction V perpendicular to the depth of the sealing groove 404, each of the two opposing inner sidewalls of the sealing groove 404 is provided with a third lip 406; and the third lips 406 on the two inner sidewalls respectively seal against the two opposing surfaces of the mounting part 12. In this way, the two opposing sides of the female door 10 are in close contact with the sealing body 401, further improving the reliability of sealing and assembly.

[0103] Furthermore, a guide opening 407 is formed between the third lips 406 on the two inner sidewalls. The guide opening 407 is funnel-shaped, with the larger diameter end of the funnel-shaped guide opening 407 facing the open end. It can be understood that the guide opening 407 can guide the portion of the female door 10 that extends into the sealing groove 404, enabling it to be quickly inserted into place and improving assembly efficiency.

[0104] In one embodiment, such as Figure 24 As shown, a reinforcing member 408 is embedded within the sealing body 401. The reinforcing member 408 can be a metal wire or a metal strip. Here, the metal can be steel, iron, aluminum, or an alloy, etc. In this way, the structure of the sealing body 401 is strengthened by the reinforcing member 408 to improve its service life.

[0105] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0106] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A vehicle tailgate device, comprising a main door (10), a secondary door (20) and a hinge mechanism (70), the hinge mechanism (70) being mounted on a vehicle body (200), wherein the main door (10) and the secondary door (20) are both hinged to the hinge mechanism (70). Its features are, The hinge mechanism (70) includes a mounting base (71), a first connecting base (72), and a second connecting base (73); the mounting base (71) is used to fix the vehicle body (200), and a first mounting groove (711) is provided on the mounting base (71); One end of the first connecting seat (72) is housed in the first mounting groove (711) and rotatably connected to the mounting seat (71), and has a second mounting groove (721). The other end of the first connecting seat (72) is connected to the mother door (10). One end of the second connecting seat (73) is housed in the second mounting groove (721) and rotatably connected to the mounting seat (71). The other end of the second connecting seat (73) is connected to the daughter door (20).

2. The vehicle tailgate device according to claim 1, characterized in that, The first mounting groove (711) is provided with an adapter shaft (712), and the first connecting seat (72) and the second connecting seat (73) are both hinged to the adapter shaft (712).

3. The vehicle tailgate device according to claim 1, characterized in that, The first mounting slot (711) has a first opening (713), and the second mounting slot (721) has a second opening (722); in the height direction of the vehicle, the first opening (713) and the second opening (722) are both upward, and the first opening (713) and the second opening (722) are flush.

4. The vehicle tailgate device according to claim 1, characterized in that, The first connecting seat (72) includes a first seat body (723) and a first connecting plate (724). One end of the first seat body (723) extends into the first mounting groove (711), and the other end extends toward the mother door (10). The first connecting plate (724) is installed at the end of the first seat body (723) away from the mounting seat (71) and is fitted to the mother door (10).

5. The vehicle tailgate device according to claim 4, characterized in that, The first seat (723) is U-shaped; and / or the first connecting seat (72) is U-shaped.

6. The vehicle tailgate device according to claim 4, characterized in that, The first base (723) and the first connecting plate (724) are configured as an integral structure.

7. The vehicle tailgate device according to claim 4, characterized in that, The first connecting plate (724) has a first reinforcing groove (725) recessed on the side of the first connecting plate (724) facing the mother door (10).

8. The vehicle tailgate device according to claim 1, characterized in that, The second connecting seat (73) includes a second connecting plate (731) and a bending plate (732). One end of the second connecting plate (731) is housed in the second mounting groove (721), and the other end extends toward the sub-door (20) and is connected to the bending plate (732), and the bending plate (732) is in contact with the sub-door (20).

9. The vehicle tailgate device according to claim 8, characterized in that, A second reinforcing groove (733) is recessed on the surface of the second connecting plate (731); and / or, the second connecting plate (731) is arc-shaped.

10. A vehicle, characterized in that, Includes the vehicle body (200) and the vehicle tailgate assembly as described in any one of claims 1-9.

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