Hinge, vehicle door assembly, and vehicle

Abstract

The application discloses a hinge, a vehicle door assembly and a vehicle. The hinge comprises a fixed leaf, a movable leaf and a movable assembly. The fixed leaf is suitable for being connected to a vehicle body. The movable leaf is suitable for being connected to a vehicle door. The movable assembly comprises a first movable rod and a second movable rod. The first movable rod is movably connected to the second movable rod. The first movable rod is movably connected to the fixed leaf. The second movable rod is movably connected to the movable leaf. According to the hinge, the first movable rod is movably connected to the second movable rod, the first movable rod is movably connected to the fixed leaf, and the second movable rod is movably connected to the movable leaf. The vehicle door can be flexibly rotated relative to the vehicle body to achieve the action of opening or closing the vehicle door, and the movable range of the vehicle door at the hinge can be increased.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese patent application filed on February 28, 2025, with application number 202520359563.3 and entitled "Hinges, Door Assemblies and Vehicles", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of vehicle technology, and more specifically, to a hinge, a door assembly, and a vehicle. Background Technology

[0004] In related technologies, car doors are generally connected to the car body via hinges. However, existing car door hinges often include a fixed hinge and a movable hinge. The fixed hinge is hinged to the car body, and the movable hinge is connected to the car door. The range of motion of the hinge is small, which restricts the movement of the car door relative to the car body when opening and closing. The range of motion of the car door at this hinge is small. Utility Model Content

[0005] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, this application proposes a hinge that allows the door to have a greater range of motion at the hinge.

[0006] This application also proposes a door assembly having the aforementioned hinges.

[0007] This application also proposes a vehicle having the aforementioned hinge.

[0008] According to an embodiment of this application, the hinge includes a fixed page, a movable page, and a movable component. The fixed page is adapted to be connected to the vehicle body, the movable page is adapted to be connected to the vehicle door, and the movable component includes a first movable rod and a second movable rod. The first movable rod is movably connected to the second movable rod, the first movable rod is movably connected to the fixed page, and the second movable rod is movably connected to the movable page.

[0009] According to the embodiments of this application, the hinge is movably connected to a first movable rod and a second movable rod, the first movable rod is movably connected to a fixed page, and the second movable rod is movably connected to a movable page, so that the car door can rotate flexibly relative to the car body to achieve the action of opening or closing the car door, and the range of motion of the car door at the hinge can be increased.

[0010] According to some embodiments of this application, the first movable rod is movably connected to the fixed page via a first rotating shaft, and the second movable rod is movably connected to the movable page via a second rotating shaft.

[0011] According to some embodiments of this application, the first rotation axis is parallel to the second rotation axis.

[0012] According to some embodiments of this application, the first movable rod is movably connected to the second movable rod via a third rotating shaft, and the first rotating shaft, the third rotating shaft, and the second rotating shaft are parallel to each other.

[0013] According to some embodiments of this application, the fixed page includes a first fixed plate and a first connecting rod. The first fixed plate is used to connect with the vehicle body, the first connecting rod is connected to the first fixed plate, the first movable rod is hinged to the first connecting rod, and the first connecting rod is provided with a clearance groove for the movable component to pass through.

[0014] According to some embodiments of this application, the movable page includes a second fixing plate and a second connecting rod. The second fixing plate is used to connect with the vehicle door, the second fixing plate is connected to the second connecting rod, and the second connecting rod is hinged to the second movable rod.

[0015] A door assembly according to other embodiments of this application includes the hinges described above.

[0016] According to other embodiments of the present application, the door assembly has a hinge that is movably connected to a first movable rod and a second movable rod, the first movable rod being movably connected to a fixed leaf, and the second movable rod being movably connected to a movable leaf, so that the door can rotate flexibly relative to the vehicle body to achieve the action of opening or closing the door, thereby increasing the range of motion of the door at the hinge.

[0017] A vehicle according to some embodiments of this application includes a body, a door, and the aforementioned hinges, wherein the fixed hinge is mounted on the body and the movable hinge is mounted on the door.

[0018] According to the vehicle embodiment of this application, its hinge is movably connected to a first movable rod and a second movable rod, the first movable rod is movably connected to a fixed page, and the second movable rod is movably connected to a movable page, so that the door can rotate flexibly relative to the vehicle body to achieve the action of opening or closing the door, and the range of motion of the door at the hinge can be increased.

[0019] According to some embodiments of this application, the vehicle body includes a side panel, the door is a side-opening door, and the vehicle further includes a second hinge. Both the second hinge and the hinge are used to connect the door and the side panel, and the second hinge and the hinge are spaced apart in the height direction of the vehicle.

[0020] According to some embodiments of this application, in the height direction of the vehicle, the second hinge is located below the hinge.

[0021] According to some embodiments of this application, the second hinge includes a second fixed page and a second movable page. The second fixed page is mounted on the side panel, and the movable page is mounted on the door. The second movable page and the second fixed page are hinged together at a fourth rotation axis. The door is adapted to rotate about the axis of the fourth rotation axis. In the radial direction of the fourth rotation axis, the hinge is separated from the axis of the fourth rotation axis.

[0022] According to some embodiments of this application, the first movable rod is hinged to the fixed page at a first rotation axis, and the first rotation axis is parallel to the fourth rotation axis.

[0023] According to some embodiments of this application, the car door is a fastback side-opening tailgate, the car door includes a first part and a second part, the first part is connected to the second part, the first part is located above the second part, the first part is inclined in the forward direction relative to the second part, the hinge is used to connect the first part to the side panel, and the second hinge is used to connect the second part to the side panel.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] Figure 1 This is a perspective view of a hinge according to some embodiments of this application;

[0026] Figure 2 This is a partial perspective view of a vehicle according to some embodiments of this application;

[0027] Figure 3 This is a perspective view of a second hinge according to some embodiments of this application;

[0028] Figure 4 This is a schematic diagram showing the relative positions of a hinge and a second hinge according to some embodiments of this application;

[0029] Figure 5 This is a diagram showing the closed state of a vehicle with a concealed door according to some embodiments of this application;

[0030] Figure 6 This is a diagram of a vehicle with a hidden door in a half-open state according to some embodiments of this application;

[0031] Figure 7 This is a diagram of a vehicle with a hidden door in a fully open state according to some embodiments of this application;

[0032] Figure 8This is a diagram showing the closed state of a hinge, a second hinge, and a door according to some embodiments of this application;

[0033] Figure 9 This is a schematic diagram of a door assembly according to some embodiments of this application.

[0034] Figure label:

[0035] Vehicle 100, hinge 10, fixed page 1, first fixed plate 11, first connecting hole 111, first connecting rod 12, clearance groove 121, movable page 2, second fixed plate 21, second connecting hole 211, second connecting rod 22, movable assembly 3, first movable rod 31, second movable rod 32, first rotating shaft 41, second rotating shaft 42, third rotating shaft 43, fourth rotating shaft 44, second hinge 20, second fixed page 201, third connecting hole 2011, second movable page 202, fourth connecting hole 2021, side panel 30, door 40, first part 401, second part 402, door assembly 50. Detailed Implementation

[0036] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0037] In the description of this application, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] The following is combined with Figures 1-9 The present application describes in detail a hinge 10, a door assembly 50 having the hinge 10, and a vehicle 100 having the hinge 10 according to embodiments thereof.

[0039] See Figure 1 , Figure 2 As shown, the hinge 10 according to an embodiment of this application includes a fixed page 1, a movable page 2, and a movable component 3. The fixed page 1 is adapted to be connected to the vehicle body, the movable page 2 is adapted to be connected to the door 40, and the movable component 3 includes a first movable rod 31 and a second movable rod 32. The first movable rod 31 and the second movable rod 32 are movably connected. The first movable rod 31 is movably connected to the fixed page 1, and the second movable rod 32 is movably connected to the movable page 2.

[0040] Specifically, the fixed hinge 1 is suitable for connection to the vehicle body (e.g., side panel 30), and the movable hinge 2 is suitable for connection to the door 40 (e.g., tailgate). The door 40 can be movably connected to the vehicle body via hinge 10 and movably connected via a first movable rod 31 and a second movable rod 32. The first movable rod 31 is movably connected to the fixed hinge 1, and the second movable rod 32 is movably connected to the movable hinge 2. This allows the door 40 to rotate flexibly relative to the vehicle body to open or close, increasing the range of motion of the door 40 at the hinge 10 and meeting the usage requirements of the door 40. At the same time, the movable component 3 frees up some space, allowing the door 40 to be designed without being constrained by the traditional hinge arrangement on the shape of the vehicle 100, thus having greater design freedom and meeting diverse appearance requirements.

[0041] Optionally, the movable connection in this application can be a hinged connection, a sliding connection, a telescopic rod connection, etc. Further details will not be provided below.

[0042] Optionally, the hinged connection in this application can be a riveted connection, a pin hinge, a ball joint, etc.

[0043] Optionally, the door 40 can be a side tailgate, left front door, right front door, left rear door, right rear door, etc. Among them, the side tailgate is a side-opening tailgate (i.e., a side-opening rear door that opens to the left or right).

[0044] In related technologies, car doors are generally connected to the car body via hinges. However, existing car door hinges often include a fixed hinge and a movable hinge. The fixed hinge is hinged to the car body, and the movable hinge is connected to the car door. The range of motion of the hinge is small, which restricts the movement of the car door relative to the car body when opening and closing.

[0045] According to the embodiment of this application, the hinge 10 is movably connected to the first movable rod 31 and the second movable rod 32. The first movable rod 31 is movably connected to the fixed page 1, and the second movable rod 32 is movably connected to the movable page 2, so that the door 40 can rotate flexibly relative to the vehicle body to achieve the action of opening or closing the door 40, and the range of motion of the door 40 at the hinge 10 can be increased.

[0046] In some embodiments not shown in the figures, the first movable rod 31 and the second movable rod 32 may be movably connected by at least one intermediate connecting rod.

[0047] Optionally, the number of intermediate links can be one, two, three or more.

[0048] In some embodiments of this application, such as Figure 1As shown, the first movable rod 31 and the second movable rod 32 can be movably connected, or the first movable rod 31 and the second movable rod 32 can be directly connected.

[0049] Specifically, the movable component 3 adopts a multi-link design, allowing the movable page 2 to exhibit diverse positions and angles during movement based on different geometric constraints and mechanical requirements of the movable component 3. This expands the range of motion of the door 40 beyond the limited range of motion found when using traditional hinges to connect the door and the body. Furthermore, it allows the hinge 10 to adapt to different types of doors 40, ensuring that the shape of the door 40 is not overly restricted by the hinge 10. In particular, the direct movable connection between the first movable link 31 and the second movable link 32 achieves a good balance between structural simplification and performance optimization while maintaining the advantages of the multi-link structure. This enables flexible movement and spatial avoidance due to multiple rotation centers, reduces the complexity of manufacturing and assembling the hinge 10, improves production efficiency, and reduces the cumulative errors that may arise from the fit tolerances between multiple links, further enhancing the overall performance and reliability of the hinge 10.

[0050] In some embodiments of this application, see Figure 1 As shown, the first movable rod 31 is movably connected to the fixed page 1 via the first rotating shaft 41, and the second movable rod 32 is movably connected to the movable page 2 via the second rotating shaft 42. Specifically, the first movable rod 31 can rotate relative to the fixed page 1 around the first rotating shaft 41, and the second movable rod 32 can rotate relative to the movable page 2 around the second rotating shaft 42. The movable connection between the first movable rod 31 and the second movable rod 32 allows the door 40 to rotate flexibly relative to the vehicle body to achieve the opening or closing action of the door 40. The combination of the first rotating shaft 41 and the second rotating shaft 42 allows the movable component 3 to simulate a complex motion trajectory, and the door 40 has a large range of motion during the opening and closing process.

[0051] In some embodiments of this application, see Figure 1 As shown, the first rotation axis 41 and the second rotation axis 42 are parallel. Specifically, the parallelism of the first rotation axis 41 and the second rotation axis 42 provides clear and stable guidance for the first movable rod 31, the second movable rod 32, and the movable page 2 during movement. This allows them to rotate precisely along a predetermined trajectory, ensuring the stability and consistency of the door 40 during opening and closing. It also avoids problems such as jamming and collisions caused by deviations in the movement trajectory, improving the operating feel and safety of the door 40.

[0052] In some embodiments, the first rotating shaft 41 is formed on one of the first movable rod 31 and the fixed page 1, and the other of the first movable rod 31 and the fixed page 1 is movably connected to the first rotating shaft 41, for example, as... Figure 1As shown, a first rotating shaft 41 is formed on the fixed page 1, and a first movable rod 31 is movably connected to the first rotating shaft 41. Alternatively, the first movable rod 31 and the fixed page 1 may have through holes, and the first rotating shaft 41 may pass through each of the through holes in the first movable rod 31 and the fixed page 1 to movably connect the first movable rod 31 and the fixed page 1.

[0053] Similarly, the second rotating shaft 42 is formed on one of the second movable rod 32 and the movable page 2, and the other of the second movable rod 32 and the movable page 2 is movably connected to the second rotating shaft 42, for example, as... Figure 1 As shown, the second rotating shaft 42 is formed on the movable page 2, and the second movable rod 32 is movably connected to the second rotating shaft 42. Alternatively, the second movable rod 32 and the movable page 2 may have through holes, and the second rotating shaft 42 may pass through each through hole of the second movable rod 32 and the movable page 2 to movably connect the second movable rod 32 and the movable page 2.

[0054] In some embodiments of this application, see Figure 1 As shown, the first movable rod 31 is movably connected to the second movable rod 32 via the third rotating shaft 43, and the first rotating shaft 41, the third rotating shaft 43, and the second rotating shaft 42 are parallel to each other. Specifically, the parallelism of the first rotating shaft 41, the third rotating shaft 43, and the second rotating shaft 42 provides clear and stable guidance for the first movable rod 31, the second movable rod 32, and the movable page 2 during movement, enabling precise rotation along a predetermined trajectory. This ensures the stability and consistency of the door 40 during opening and closing, avoids problems such as jamming and collisions caused by deviations in the movement trajectory, and improves the operating feel and safety of the door 40.

[0055] In some embodiments, the third rotating shaft 43 is formed on one of the first movable rod 31 and the second movable rod 32, and the other of the first movable rod 31 and the second movable rod 32 is movably connected to the third rotating shaft 43, for example, as... Figure 1 As shown, the third rotating shaft 43 is formed on the second movable rod 32, and the first movable rod 31 is movably connected to the third rotating shaft 43. Alternatively, the first movable rod 31 and the second movable rod 32 may have through holes, and the third rotating shaft 43 may pass through each of the through holes of the first movable rod 31 and the second movable rod 32 to movably connect the first movable rod 31 and the second movable rod 32.

[0056] It should be noted that the movable connection between the two parts in this application can be a hinged connection. A hinged connection means that the two parts can rotate around the same axis of rotation, including but not limited to the above-mentioned arrangement of the first rotation axis 41, the third rotation axis 43 and the second rotation axis 42. It can also be other structural forms that can ensure mutual rotation between the parts, which will not be elaborated here.

[0057] In some embodiments of this application, see Figure 1 , Figure 2 As shown, the fixed page 1 includes a first fixed plate 11 and a first connecting rod 12. The first fixed plate 11 is used to connect with the vehicle body, the first connecting rod 12 is connected to the first fixed plate 11, and the first movable rod 31 is hinged to the first connecting rod 12. The first connecting rod 12 is provided with a clearance groove 121 for the movable component 3 to pass through. Specifically, the existence of the clearance groove 121 avoids spatial conflict between the movable component 3 and the first connecting rod 12, making the layout of the hinge 10 more compact and reasonable, effectively reducing the space occupied by the fixed page 1 and the movable component 3 during installation, providing more possibilities for the arrangement of other components inside the vehicle 100, and helping to improve the overall space utilization of the vehicle 100. At the same time, the existence of the first fixed plate 11 makes the fixed page 1 more adaptable when connected to the vehicle body. Different vehicle bodies may have different structures and materials, and the first fixed plate 11 can be customized according to the actual situation, thereby achieving good adaptation of the first fixed plate 11 to different vehicle bodies and expanding the versatility and applicability of the hinge 10.

[0058] In some embodiments of this application, see Figure 1 As shown, the first movable rod 31 and the first connecting rod 12 are movably connected at the first rotating shaft 41. One end of the clearance groove 121 extends toward the first fixed plate 11, and the other end of the clearance groove 121 extends radially toward the first rotating shaft 41. Specifically, the design of the clearance groove 121 ensures that the movable component 3 has a smooth and unobstructed movement trajectory when rotating. Since the clearance groove 121 extends radially along the first rotating shaft 41, during the rotation of the movable component 3, at least a part of its structure (such as the second movable rod 32) can move freely within the space planned by the clearance groove 121 without interfering with or colliding with the first connecting rod 12. A part of the structure of the movable page 2 can also move freely within the space planned by the clearance groove 121 without interfering with or colliding with the first connecting rod 12. During the opening and closing of the door 40, the movable component 3 and the movable page 2 can move flexibly and stably, providing a strong guarantee for the smooth movement of the door 40 and improving the convenience and comfort of the user when operating the door 40.

[0059] In some embodiments of this application, see Figure 1 , Figure 2As shown, the first fixing plate 11 is provided with a first connecting hole 111, which is used to connect with the vehicle body. Specifically, fasteners (bolts, screws, rivets, etc.) are inserted through the first connecting hole 111 to fix the first fixing plate 11 to the vehicle body, forming a stable connection. This allows the hinge 10 to withstand various forces (including gravity, inertial force, vibration and impact force, etc.) generated during the opening and closing of the door 40 and the driving of the vehicle 100, ensuring that the hinge 10 always maintains a stable connection with the vehicle body, providing a solid foundation for the normal operation of the door 40.

[0060] Optionally, the first connecting hole 111 can be a smooth hole or a threaded hole.

[0061] In some embodiments of this application, see Figure 1 , Figure 2 As shown, the movable page 2 includes a second fixing plate 21 and a second connecting rod 22. The second fixing plate 21 is used to connect with the door 40, the second fixing plate 21 is connected to the second connecting rod 22, and the second connecting rod 22 is movably connected to the second movable rod 32. Specifically, by connecting the second fixing plate 21 to the door 40 of the vehicle 100 and the second connecting rod 22 to the second movable rod 32, a reliable connection structure is formed between the door 40 and the vehicle body. The movable page 2 is firmly and stably connected to the door 40, enabling the hinge 10 to better withstand various forces (including gravity, inertial force, vibration and impact force, etc.) generated during the opening and closing of the door 40 and the driving of the vehicle 100, preventing abnormal movement or safety hazards of the door 40 due to loose connection. Meanwhile, the presence of the second fixing plate 21 makes the movable page 2 more adaptable when connected to the door 40. Different doors 40 may have different structures and materials, and the second fixing plate 21 can be customized according to the actual situation, thereby achieving good adaptation of the movable page 2 to different doors 40 and expanding the versatility and applicability of the hinge 10.

[0062] In some embodiments of this application, see Figure 1 , Figure 2 As shown, the second fixing plate 21 is provided with a second connecting hole 211, which is used to connect with the door 40. Specifically, the second connecting hole 211 provides a clear connection point between the door 40 and the second fixing plate 21. The second fixing plate 21 and the door 40 are fixed together by fasteners (bolts, screws, rivets, etc.) to form a stable connection, ensuring a tight connection between the door 40 and the hinge 10 and preventing problems such as loosening or falling off of the door 40.

[0063] Optionally, the second connecting hole 211 can be a smooth hole or a threaded hole.

[0064] See Figure 9As shown, a door assembly 50 according to another embodiment of this application includes the hinge 10 described above.

[0065] According to the embodiment of this application, the door assembly 50 has a hinge 10 that is movably connected to a first movable rod 31 and a second movable rod 32. The first movable rod 31 is movably connected to a fixed leaf 1, and the second movable rod 32 is movably connected to a movable leaf 2, so that the door 40 can rotate flexibly relative to the vehicle body to achieve the action of opening or closing the door 40, and the range of motion of the door 40 at the hinge 10 can be increased.

[0066] See Figure 1 , Figure 2 As shown, a vehicle 100 according to another embodiment of this application includes a body, a door 40 and the aforementioned hinge 10, with a fixed page 1 mounted on the body and a movable page 2 mounted on the door 40.

[0067] According to the vehicle 100 of this application embodiment, its hinge 10 is movably connected to a first movable rod 31 and a second movable rod 32. The first movable rod 31 is movably connected to a fixed page 1, and the second movable rod 32 is movably connected to a movable page 2, so that the door 40 can rotate flexibly relative to the vehicle body to achieve the action of opening or closing the door 40, and the range of motion of the door 40 at the hinge 10 can be increased.

[0068] In some embodiments of this application, see Figures 2-4 As shown, the vehicle body includes a side panel 30, a side-opening door 40, and a second hinge 20. Both the second hinge 20 and the hinge 10 are used to connect the door 40 and the side panel 30. The second hinge 20 and the hinge 10 are spaced apart in the height direction of the vehicle 100. Specifically, by adding a second hinge 20 between the door 40 and the side panel 30, and by arranging the second hinge 20 and the hinge 10 spaced apart in the height direction of the vehicle 100, the weight of the door 40 and the inertial force generated when opening and closing the door can be more evenly distributed onto the side panel 30. This prevents the hinge 10 or the second hinge 20 from being damaged due to excessive force, and extends the service life of the hinge 10, the second hinge 20, and related components.

[0069] In some embodiments of this application, see Figure 2 , Figure 4As shown, in the height direction of the vehicle 100, the second hinge 20 is located below the hinge 10. In some embodiments, the structural strength of the second hinge 20 is higher than that of the hinge 10. Placing the second hinge 20 below the hinge 10 can better distribute and support the load applied by the door 40. When the vehicle 100 is in complex road conditions (such as bumpy road conditions), the second hinge 20 can effectively resist more of the load caused by the swaying of the side panel 30. The hinge 10 helps to maintain the vertical position and angle of the door 40. The two work together to make the connection between the door 40 and the side panel 30 more stable.

[0070] In some embodiments of this application, see Figures 2-4 As shown, the second hinge 20 includes a second fixed page 201 and a second movable page 202. The second fixed page 201 is mounted on the side panel 30, and the movable page 202 is mounted on the door 40. The second movable page 202 and the second fixed page 201 are hinged together at the fourth rotation axis 44. The door 40 is adapted to rotate around the axis of the fourth rotation axis 44. In the radial direction of the fourth rotation axis 44, the hinge 10 is separated from the axis of the fourth rotation axis 44. In other words, the hinge 10 does not pass through the axis of the fourth rotation axis 44, or the hinge 10 is away from the axis of the fourth rotation axis 44.

[0071] Specifically, the second fixed page 201 and the second movable page 202 are hinged together, allowing the door 40 to rotate around the door rotation axis α (e.g., Figure 4 The fourth rotating axis 44 (as shown) rotates flexibly around the door's rotation axis α. The fourth rotating axis 44 provides a fixed and stable center of rotation for the opening and closing of the door 40. When the door 40 is opened or closed, the second movable page 202 can rotate smoothly around the door's rotation axis α, providing a smooth and precise opening and closing path for the door 40, facilitating the loading and unloading of luggage or other operations. In other words, when the door 40 is opened or closed, it always performs a circular motion around the door's rotation axis α, ensuring that the door 40 maintains a precise movement trajectory and avoiding instability such as wobbling or deviation.

[0072] See Figure 2 , Figure 4 As shown, during the opening and closing of the car door 40, the hinge 10 separates from the axis of the fourth rotation axis 44. When the hinge 10 moves, it is far away from the rotation axis α of the car door around which the car door 40 rotates. A large space can be left between the hinge 10 and the rotation axis α of the car door, so that the hinge 10 can be hidden. That is, the hinge 10 can be placed in a position covered by the car door 40 (such as the inner side of the outer panel of the car door 40), and there will be no situation where part of the hinge 10 is exposed, affecting the overall aesthetics of the car door 40, thus improving the texture and grade of the vehicle 100.

[0073] Depend on Figures 5-8It can be seen that when the door 40 is closed and fully opened, the changes of each component (including hinge 10, second hinge 20, side panel 30 and door 40, etc.) are as follows: the moving component 3 of hinge 10 never passes through the door rotation axis α, and a large space is provided between hinge 10 and door rotation axis α, which facilitates the hidden arrangement of hinge 10.

[0074] In addition, the movable component 3 is movably connected by the first movable rod 31 and the second movable rod 32, and adopts a multi-link structure design to ensure that the hinge 10 is separated from the door rotation axis α around which the door 40 rotates during movement. This allows the hinge 10 to be placed in a position covered by the door 40 (such as inside the outer panel of the door 40), so that the hinge 10 is not exposed during the opening and closing of the door 40.

[0075] In related technologies, car doors are generally connected to the car body via traditional hinges. However, existing car door hinges often have parts exposed, affecting the door's shape and making it impossible to simultaneously achieve the desired door outline and hinge appearance. According to the vehicle 100 of this application embodiment, the movable component 3 of the hinge 10 allows for a partial clearance between the hinge 10 and the door's rotation axis α, enabling the hinge 10 to be concealed. This prevents parts of the hinge 10 from being exposed and affecting the overall shape of the door 40, thus improving the texture, aesthetics, and overall quality of the vehicle 100.

[0076] In some embodiments of this application, see Figure 2 , Figure 3 As shown, the second fixing page 201 is provided with a third connecting hole 2011, which is used to connect with the side panel 30 of the vehicle 100. Specifically, the third connecting hole 2011 provides a clear connection point between the second fixing page 201 and the side panel 30. The second fixing page 201 and the side panel 30 are fixed together by fasteners (bolts, screws, rivets, etc.) to form a stable connection, ensuring a tight connection between the side panel 30 and the second hinge 20, and preventing problems such as loosening or falling off of the second hinge 20 and the side panel 30.

[0077] Optionally, the third connecting hole 2011 can be a smooth hole or a threaded hole.

[0078] In some embodiments of this application, see Figure 2 , Figure 3As shown, the second movable page 202 is provided with a fourth connecting hole 2021, which is used for fixed connection with the door 40 of the vehicle 100. Specifically, the fourth connecting hole 2021 provides a clear connection point between the second movable page 202 and the door 40. The second movable page 202 and the door 40 are fixed together by fasteners (bolts, screws, rivets, etc.) to form a stable connection, ensuring a tight connection between the door 40 and the second hinge 20 and preventing problems such as loosening or falling off of the door 40.

[0079] Optionally, the fourth connecting hole 2021 can be a smooth hole or a threaded hole.

[0080] In some embodiments, the fourth rotation axis 44 is formed on one of the second fixed page 201 and the second movable page 202, and the other of the second fixed page 201 and the second movable page 202 is hingedly connected to the fourth rotation axis 44, for example, as shown in the figure. Figure 3 As shown, the fourth rotation axis 44 is formed on the second movable page 202, and the second fixed page 201 is hinged to the fourth rotation axis 44. Alternatively, the second fixed page 201 and the second movable page 202 may have through holes, and the fourth rotation axis 44 may pass through each through hole of the second fixed page 201 and the second movable page 202, so that the second fixed page 201 and the second movable page 202 are hinged together.

[0081] In some embodiments of this application, see Figures 1-4 As shown, the first movable rod 31 is hinged to the fixed page 1 at the first rotating shaft 41, which is parallel to the fourth rotating shaft 44. Specifically, the parallelism between the first rotating shaft 41 and the fourth rotating shaft 44 ensures that the door 40 can open and close along a stable and precise path when the hinge 10 and the second hinge 20 are in motion. This avoids instability such as tilting when the door 40 is opened or closed, reduces abnormal wear caused by uneven force on the door 40, hinge 10, and second hinge 20, and extends the service life of the hinge 10, second hinge 20, and door 40.

[0082] In some embodiments of this application, see Figures 1-4 As shown, the first movable rod 31 and the second movable rod 32 are hinged together at the third rotating shaft 43, and the second movable rod 32 is hinged together with the movable page 2 at the second rotating shaft 42. Both the third rotating shaft 43 and the second rotating shaft 42 are parallel to the fourth rotating shaft 44. Specifically, the parallelism of the third rotating shaft 43 and the second rotating shaft 42 provides a smooth and stable movement trajectory for the door 40, making the door 40 more coordinated when opening and closing, avoiding instability such as tilting, reducing abnormal wear caused by uneven force on the door 40, hinge 10, and second hinge 20, and extending the service life of the hinge 10, second hinge 20, and door 40.

[0083] In some embodiments of this application, see Figures 1-4 As shown, the door 40 is a fastback side-opening tailgate located at the rear of the vehicle's passenger compartment. The door 40 includes a first part 401 and a second part 402. The first part 401 is connected to the second part 402, and the first part 401 is located above the second part 402. The first part 401 is tilted towards the front of the vehicle relative to the second part 402. The hinge 10 is used to connect the first part 401 to the side panel 30, and the second hinge 20 is used to connect the second part 402 to the side panel 30.

[0084] Specifically, the first part 401 of the fastback side-opening tailgate is tilted forward relative to the second part 402, resulting in limited installation space for the hinges at the first part 401 and the side panel 30. In some related technologies, traditional hinges are used to connect the first part and the side panel, resulting in a portion of the traditional hinge structure being exposed on the outside of the fastback side-opening tailgate, which has a significant impact on the overall appearance. In other related technologies, in order to ensure that the traditional hinges are not exposed, the first part can only be made into a structure without forward tilt, leaving sufficient space for the arrangement and movement of the traditional hinges in both the front-rear and vertical directions of the vehicle, thus achieving the hidden arrangement of the traditional hinges. However, this will inevitably affect the shape of the tailgate and make it impossible to achieve a fastback shape. If the first part is forcibly designed to tilt forward, the traditional hinges will be exposed, affecting the overall aesthetic appearance of the tailgate.

[0085] According to the embodiment of this application, the vehicle 100 uses a hinge 10 to connect the first part 401 and the side panel 30, so that a certain space is left between the hinge 10 and the rotation axis α of the door, so as to allow for the design of the first part 401. Thus, the first part 401 can tilt towards the front of the vehicle relative to the second part 402, and the hinge 10 can be hidden, so that no part of the hinge 10 is exposed and affects the overall shape of the door 40, thereby improving the texture, aesthetics and grade of the vehicle 100.

[0086] In one specific embodiment of this application, the car door 40 is a fastback side-opening tailgate. The car door 40 includes a first part 401 and a second part 402. A hinge 10 is used to connect the left side of the first part 401 with the left side panel 30, and a second hinge 20 is used to connect the left side of the second part 402 with the left side panel 30. When an external force is applied to the right side of the car door 40, the car door 40 rotates around the fourth rotation axis 44 of the second hinge 20. The first movable rod 31, the second movable rod 32, and the movable leaf 2 are passively rotated. The combined axis formed by the rotation of the first movable rod 31, the second movable rod 32, and the movable leaf 2 always coincides with the axis of the fourth rotation axis 44. This axis is the car door rotation axis α (e.g., Figure 4 (As shown). From Figure 4As can be seen, none of the three rotation axes of the hinge 10 (i.e., the first rotation axis 41, the second rotation axis 42, and the third rotation axis 43) pass through the door rotation axis α. The hinge 10 firmly connects the first part 401 to the side panel 30. No part of the hinge 10 passes through the door rotation axis α during movement, which gives the door 40 more room for design.

[0087] By using the hinge 10 of this application to connect the first part 401 and the side panel 30, a sloping back-opening side door design can be realized, and the hinge 10 is not exposed, ensuring the overall aesthetics of the side-opening back door and solving the design limitation problem of side-opening back doors that has long plagued the industry.

[0088] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0089] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0090] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0091] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A hinge (10) characterized in that, The hinge (10) includes: A fixing page (1) is adapted to be attached to the vehicle body; Activity page (2), said activity page (2) is adapted to be connected to the car door; The active component (3) includes a first active rod (31) and a second active rod (32), the first active rod (31) and the second active rod (32) are movably connected, the first active rod (31) is movably connected to the fixed page (1), and the second active rod (32) is movably connected to the active page (2).

2. The hinge (10) according to claim 1, characterized in that, The first movable rod (31) is movably connected to the fixed page (1) via the first rotating shaft (41), and the second movable rod (32) is movably connected to the movable page (2) via the second rotating shaft (42).

3. The hinge (10) according to claim 2, characterized in that The first rotation axis (41) is parallel to the second rotation axis (42).

4. The hinge (10) according to claim 2, characterized in that The first movable rod (31) is movably connected to the second movable rod (32) via the third rotating shaft (43), and the first rotating shaft (41), the third rotating shaft (43) and the second rotating shaft (42) are parallel to each other.

5. The hinge (10) according to claim 1, characterized in that The fixed page (1) includes a first fixed plate (11) and a first connecting rod (12). The first fixed plate (11) is used to connect with the vehicle body. The first connecting rod (12) is connected to the first fixed plate (11). The first movable rod (31) is hinged to the first connecting rod (12). The first connecting rod (12) is provided with a clearance groove (121) for the movable component (3) to pass through.

6. The hinge (10) according to claim 1, characterized in that The movable page (2) includes a second fixing plate (21) and a second connecting rod (22). The second fixing plate (21) is used to connect with the car door. The second fixing plate (21) is connected to the second connecting rod (22). The second connecting rod (22) is hinged to the second movable rod (32).

7. A door assembly (50) comprising the hinge (10) according to any one of claims 1-6.

8. A vehicle (100), characterized in that include: Body; Car door (40); The hinge (10) according to any one of claims 1-6, wherein the fixed page (1) is mounted on the vehicle body and the movable page (2) is mounted on the door (40).

9. The vehicle (100) according to claim 8, characterized in that The vehicle body includes a side panel (30), the door (40) is a side door, and the vehicle (100) also includes a second hinge (20). The second hinge (20) and the hinge (10) are both used to connect the door (40) and the side panel (30). The second hinge (20) and the hinge (10) are spaced apart in the height direction of the vehicle (100).

10. The vehicle (100) according to claim 9, characterized in that In the height direction of the vehicle (100), the second hinge (20) is located below the hinge (10).

11. The vehicle (100) according to claim 9 or 10, characterized in that The second hinge (20) includes: The second fixing page (201) is installed on the side panel (30); The second movable page (202) is mounted on the door (40). The second movable page (202) and the second fixed page (201) are hinged together at the fourth rotation axis (44). The door (40) is adapted to rotate about the axis of the fourth rotation axis (44). In the radial direction of the fourth rotation axis (44), the hinge (10) is separated from the axis of the fourth rotation axis (44).

12. The vehicle (100) according to claim 11, characterized in that The first movable rod (31) is hinged to the fixed page (1) at the first rotating shaft (41), which is parallel to the fourth rotating shaft (44).

13. The vehicle (100) according to claim 9, characterized in that The door (40) is a fastback side-opening tailgate. The door (40) includes a first part (401) and a second part (402). The first part (401) is connected to the second part (402). The first part (401) is located above the second part (402). The first part (401) is inclined towards the front of the vehicle relative to the second part (402). The hinge (10) is used to connect the first part (401) and the side panel (30). The second hinge (20) is used to connect the second part (402) and the side panel (30).

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