Hinge device, vehicle door assembly, and vehicle

Abstract

The present disclosure relates to a hinge device, a vehicle door assembly and a vehicle. The hinge device comprises a mounting base, a first rotating structure, a second rotating structure, a connecting arm and a swing arm. The mounting base is used for mounting to a vehicle body. The swing arm is used for connecting with a vehicle door. The first rotating structure and the second rotating structure are connected to the mounting base respectively. The swing arm is rotatably connected to the first rotating structure. The swing arm is connected to a first end of the connecting arm through a first ball head structure. A second end of the connecting arm is rotatably connected to the second rotating structure. The swing arm can swing in a preset direction, so as to realize the opening and closing of the vehicle door.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle component technology, specifically to a hinge device, a door assembly, and a vehicle. Background Technology

[0002] With the continuous development of vehicles, various new door technologies are constantly being applied to the market. Irregularly shaped doors (such as scissor doors), as a personalized design, have a more avant-garde appearance and are increasingly favored by manufacturers and the market. How to ensure the smooth opening and closing of irregularly shaped doors (such as scissor doors) has become an increasingly important issue. Summary of the Invention

[0003] The purpose of this disclosure is to provide a hinge device, a door assembly, and a vehicle, wherein the hinge device enables the opening and closing of the door.

[0004] To achieve the above objectives, this disclosure provides a hinge device, including a mounting base, a first rotating structure, a second rotating structure, a connecting arm, and a swing arm;

[0005] The mounting base is used to be mounted on the vehicle body, and the swing arm is used to be connected to the vehicle door;

[0006] The first rotating structure and the second rotating structure are respectively connected to the mounting base;

[0007] The swing arm is rotatably connected to the first rotating structure, and the first end of the swing arm is connected to the first end of the connecting arm through a first ball joint structure, and the second end of the connecting arm is rotatably connected to the second rotating structure.

[0008] Optionally, the first rotating structure is rotatably connected to the mounting base about a first rotating axis;

[0009] The second rotating structure is rotatably connected to the mounting base about a second rotating axis;

[0010] The first rotation axis and the second rotation axis are arranged symmetrically.

[0011] Optionally, the first rotation axis intersects the second rotation axis at a first point;

[0012] The first rotation axis and the second rotation axis are arranged symmetrically about the first normal plane. The first normal plane is the normal plane on the mounting base facing the first surface of the swing arm. The line connecting the first point and the center of the first ball head is located in this normal plane.

[0013] Optionally, the first rotating structure and the second rotating structure are configured to be symmetrically arranged about the first normal plane.

[0014] Optionally, the hinge device is configured as a multi-axis single-degree-of-freedom mechanism.

[0015] Optionally, the mounting base and the first rotating structure, the first rotating structure and the swing arm, the swing arm and the second rotating structure, or the second rotating structure and the mounting base are connected by a rotating pair.

[0016] Optionally, a first connecting seat is provided on one of the swing arm and the connecting arm, and a first ball head is provided on the other of the swing arm and the connecting arm;

[0017] The first connecting seat is provided with a first spherical groove and an opening communicating with the first spherical groove. The first spherical groove and the first ball head are configured to form the first ball head structure. The first section of the connecting arm connected to the first ball head passes through the opening, or the part of the swing arm connected to the first ball head passes through the opening.

[0018] Optionally, the first connecting seat is further provided with a guide groove, which communicates with the first spherical groove, and one end of the guide groove extends to the end face where the opening is located, so that when the first ball head rotates in the first spherical groove, the first segment can move in the guide groove.

[0019] Optionally, the width of the guide groove is adapted to the radial dimension of the first segment so that the first segment can be suspended in the guide groove, and the first segment is configured to be able to move in the guide groove under the action of an external driving force.

[0020] Optionally, the first rotating structure includes a first rotating block, which is rotatably connected to the mounting base about a first rotating axis;

[0021] The second rotating structure includes a second rotating block, which is rotatably connected to the mounting base about a second rotating axis;

[0022] The swing arm is rotatably connected to the first rotating block about a third rotation axis, and the second end of the connecting arm is rotatably connected to the second rotating block about a fourth rotation axis.

[0023] Optionally, the first rotation axis intersects the second rotation axis at a first point, and the first rotating block and the second rotating block are configured to be symmetrically arranged about a first normal plane. The first normal plane is the normal plane on the mounting base facing the first surface of the swing arm, and the line connecting the first point and the center of the first ball head is located in this normal plane.

[0024] Optionally, the first rotation axis intersects the third rotation axis at a second point, and the second rotation axis intersects the fourth rotation axis at a third point, wherein the first point, the second point, the third point, and the center of the first ball head do not coincide.

[0025] The first distance between the end face of the first rotating block near the first point and the second point is equal to the second distance between the end face of the second rotating block near the first point and the third point.

[0026] Optionally, the third distance between the second point and the center of the first ball head is equal to the fourth distance between the third point and the center of the first ball head.

[0027] Optionally, the first rotation axis and the second rotation axis are located in a plane parallel to the XZ direction;

[0028] The angle between the first rotation axis and the second rotation axis is the first included angle; the angle between the first rotation axis and the third rotation axis is the second included angle; the angle between the second rotation axis and the fourth rotation axis is the third included angle; the angles of the first included angle, the second included angle, and the third included angle are set to remain constant during the swing arm swing.

[0029] Optionally, the swing arm is further provided with a first mounting hole, the first rotating block is provided with a first rotating shaft, and the first rotating shaft is inserted into the first mounting hole around the third rotating axis; and / or,

[0030] The connecting arm is also provided with a second mounting hole, and the second rotating block is provided with a second rotating shaft, which is inserted into the second mounting hole around the fourth rotating axis.

[0031] Optionally, the hinge device further includes a first mounting bracket and a second mounting bracket;

[0032] The first mounting bracket includes a pair of first lugs, which are spaced apart on the mounting base. The two ends of the first rotating block are rotatably mounted on the corresponding first lugs around the first rotation axis.

[0033] The second mounting bracket includes a pair of second lugs, which are spaced apart on the mounting base. The two ends of the second rotating block are rotatably mounted on the corresponding second lugs around the second rotation axis.

[0034] Optionally, the first rotating structure includes a second connecting seat and a second ball head. The second connecting seat is disposed on one of the mounting base and the swing arm, and the second ball head is disposed on the other of the mounting base and the swing arm. The second connecting seat is provided with a second spherical groove, and the second spherical groove and the second ball head are configured to form a second ball head structure.

[0035] The second rotating structure includes a third connecting seat and a third ball head. The third connecting seat is disposed on one of the mounting base and the connecting arm, and the third ball head is disposed on the other of the mounting base and the connecting arm. The third connecting seat is provided with a third spherical groove, and the third spherical groove and the third ball head are configured to form a third ball head structure.

[0036] Optionally, the swing arm is provided with at least one ball joint pin, which is used to connect to one end of the door strut.

[0037] According to another aspect of this disclosure, a door assembly is provided, including a door and the aforementioned hinge device, wherein the swing arm is connected to the door.

[0038] According to another aspect of this disclosure, a vehicle is provided, including a body and the aforementioned door assembly, wherein the mounting base is connected to the body.

[0039] In the hinge device provided in this disclosure, the mounting base, the first rotating structure, the second rotating structure, the connecting arm, and the swing arm are constructed as a spatial hinge device similar to a five-bar linkage. When applied to a vehicle, it can realize the opening and closing of irregularly shaped doors (such as scissor doors).

[0040] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0041] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0042] Figure 1 This is a three-dimensional structural schematic diagram of a hinge device provided in one embodiment of the present disclosure, wherein the swing arm is in the closed position of the car door;

[0043] Figure 2 yes Figure 1 A partially enlarged schematic diagram of the central hinge device;

[0044] Figure 3 This is a partial structural schematic diagram of a hinge device provided in one embodiment of the present disclosure, wherein the swing arm is in a first position, and in the first position, the axis of the swing arm is parallel to the axis of the opening of the spherical groove;

[0045] Figure 4 This is a partial structural schematic diagram of a hinge device provided in one embodiment of the present disclosure, wherein the swing arm is in a second position, and in the second position, the swing arm is located in the guide limiting groove, and the axis of the swing arm is perpendicular to the axis of the opening of the spherical groove.

[0046] Figure 5 This is a front view schematic diagram of a hinge device simplified into a linkage mechanism according to one embodiment of the present disclosure, wherein the hinge device is in a first state, and in the first state, the door is in the closed position;

[0047] Figure 6 This is a front view schematic diagram of a hinge device simplified into a linkage mechanism according to one embodiment of the present disclosure, wherein the hinge device is in a second state, in which the door is in the fully open position;

[0048] Figure 7 This is a three-dimensional structural schematic diagram of a hinge device provided in one embodiment of the present disclosure from another perspective, wherein the swing arm is shown in the position where the door is fully open, indicated by dashed lines.

[0049] Explanation of reference numerals in the attached figures

[0050] 100-Hinge assembly; 10-Mounting base; 11-First surface; 12-First lug; 13-Second lug; 20-First rotating structure; 21-First rotating block; 211-First pivot; 30-Second rotating structure; 31-Second rotating block; 311-Second pivot; 40-Connecting arm; 41-First section; 50-Swing arm; 51-First part; 52-Second part; 60-Ball joint connection structure; 61-First section A connecting seat; 611-first spherical groove; 612-opening; 613-guide groove; 62-first ball head; 63-wear-resistant bushing; 70-ball head pin; 101-first rotation axis; 102-second rotation axis; 103-third rotation axis; 104-fourth rotation axis; P1-first point; P2-second point; P3-third point; P4-center of the first ball head; γ-first included angle; α-second included angle; β-third included angle. Detailed Implementation

[0051] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0052] In this disclosure, unless otherwise stated, directional terms such as "longitudinal," "lateral," "up," "down," "front," "rear," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention 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. Therefore, they should not be construed as limitations on this disclosure. For example, the directions up, down, left, right, front, and rear can correspond to the up, down, left, right, front, and rear directions of a vehicle. The Z direction can correspond to the upward direction in the vertical direction (i.e., the height direction) of the vehicle; the X direction can correspond to the forward direction in the longitudinal direction (i.e., the length direction); and the Y direction can correspond to the direction away from the longitudinal center plane in the left-right direction (i.e., the width direction). See also [link to relevant documentation]. Figure 1 , Figure 2 and Figure 7 The coordinate direction in the diagram.

[0053] Furthermore, in this disclosure, the terms “first,” “second,” etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0054] Furthermore, in this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0055] For scissor doors, a hinge structure is used to connect them to the vehicle body, so that the door can swing laterally (i.e., in the Y direction, the width direction of the vehicle) and vertically (i.e., in the Z direction, the height direction of the vehicle) to open the door by swinging it laterally outward (i.e., outward in the Y direction) and upward (i.e., upward in the Z direction), and close the door laterally inward (i.e., inward in the Y direction) and downward (i.e., downward in the Z direction).

[0056] like Figures 1 to 7As shown, this disclosure provides a hinge device 100, which includes a mounting base 10, a first rotating structure 20, a second rotating structure 30, a connecting arm 40, and a swing arm 50. The mounting base 10 is used for mounting (e.g., screw-on mounting) to a vehicle body (not shown). The swing arm 50 is used for connecting (e.g., to a scissor door) to a vehicle door (e.g., screw-on connection). The first rotating structure 20 and the second rotating structure 30 are respectively connected to the mounting base 10. The swing arm 50 (e.g., the upper end of the swing arm 50) is rotatably connected to the first rotating structure 20, and the first end of the swing arm 50 is connected to the connecting arm 40 via a first ball joint structure. The second end of the connecting arm 40 is rotatably connected to the second rotating structure 30. Thus, by properly installing the hinge device, the swing arm 50 can swing in the Y direction (the width direction of the vehicle) and the Z direction (the height direction of the vehicle), thereby allowing the vehicle door to swing in the Y and Z directions, realizing the opening and closing of the vehicle door.

[0057] During installation, the front end of the car door (such as a scissor door or other irregularly shaped door) can be hinged to the car body via the hinge device 100. When the swing arm 50 swings outward in the Y direction and upward in the Z direction, the rear end of the car door can swing outward in the Y direction and upward in the Z direction around the hinge device 100, thereby opening the car door. When it is necessary to close the car door, the swing arm 50 can swing inward in the Y direction and downward in the Z direction, thereby closing the car door.

[0058] In the hinge device 100 provided in this disclosure, the mounting base 10, the first rotating structure 20, the second rotating structure 30, the connecting arm 40 and the swing arm 50 are constructed as a spatial hinge device similar to a five-bar linkage. When applied to a vehicle, it can realize the smooth opening and closing of the car door (such as a scissor door) in a preset direction, for example, the smooth opening and closing in the Y direction and the Z direction, and the structure is simple.

[0059] Furthermore, research has found that in related technologies, the hinge structure used in scissor doors typically employs a spatial four-bar linkage and its derivatives, requiring the rotation axes of each linkage to intersect at a single point. This results in high machining and assembly precision for the hinge structure, making the machining process and assembly difficult to control.

[0060] Compared to existing spatial four-bar linkages that require high assembly precision, the hinge device 100 disclosed herein does not require that the multiple rotation axes of the hinge device 100 be aligned with a single point, for example... Figure 2 The first rotation axis 101, the second rotation axis 102, the third rotation axis 103, and the fourth rotation axis 104 shown can intersect at multiple points, which helps to reduce the difficulty of machining accuracy and assembly.

[0061] It is understood that the first ball joint structure can be a ball joint structure or a universal joint, and this disclosure does not limit it.

[0062] In addition, it is understood that the car door disclosed herein can be not only an irregularly shaped car door such as a scissor door, but also other irregularly shaped car doors that are suitable for opening and closing using the hinge device provided herein, and this disclosure does not limit them.

[0063] like Figure 2 As shown, in one embodiment of this disclosure, a first rotating structure 20 is rotatably connected to a mounting base 10 about a first rotating axis 101, and a second rotating structure 30 is rotatably connected to the mounting base 10 about a second rotating axis 102. The first rotating axis 101 and the second rotating axis 102 can be arranged symmetrically. This symmetrical arrangement of the first rotating axis 101 and the second rotating axis 102 facilitates the design of the motion trajectories of the first rotating structure 20 and the second rotating structure 30, thereby simplifying the motion trajectory of the hinge device. Furthermore, the symmetrical arrangement of the first rotating axis 101 and the second rotating axis 102 helps to ensure that the first rotating structure 20 and the second rotating structure 30 are subjected to uniform force during the door's rotation, thus reducing the amount of swaying during the door's opening and closing process. In addition, when the door is closed, the symmetrical design of the rotating axes of the hinge device 100 helps to ensure that the hinge device 100 and the door are subjected to uniform force and have a small amount of downward displacement, thereby giving the door superior closing and holding performance.

[0064] In this disclosure, the first rotating structure 20 and the second rotating structure 30 can be symmetrical about any suitable symmetrical surface, and this disclosure does not limit this. Figure 2 As shown, optionally, the first rotation axis 101 and the second rotation axis 102 intersect at a first point P1. The first rotation structure 20 and the second rotation structure 30 are configured to be symmetrically arranged about a first normal plane. The first normal plane is the normal plane of the first surface 11 of the mounting base 10 facing the swing arm 50. The line connecting the first point P1 and the center P4 of the first ball head lies in this normal plane. Thus, when opening and closing the car door, the rotation of the first rotation structure 20 and the second rotation structure 30 relative to the mounting base 10 is always symmetrical, so that the swing arm 50 moves in a preset direction, thereby realizing the opening and closing of the car door.

[0065] In addition to achieving symmetrical support along the axis of rotation, such as Figures 1 to 3As shown, the first rotating structure 20 and the second rotating structure 30 can be configured to be symmetrically arranged about the first normal plane. This symmetrical structural design allows at least a portion of the hinge device 100 to be configured as a symmetrical mechanism, which simplifies the structure. Furthermore, the symmetrical structure provides good stability and uniform force distribution, further reducing the amount of swaying during the opening and closing of the door. In addition, when the door is closed, the symmetrical design of the hinge device 100 further ensures uniform force distribution and minimal sinking of both the hinge device 100 and the door, resulting in superior door closing and holding performance.

[0066] In this disclosure, the hinge device 100 can be constructed as a multi-axis single-degree-of-freedom mechanism, meaning that the motion trajectories of each moving component in the hinge device 100 are fixed. For example, the motion trajectory of the swing arm 50 connected to the door is fixed, thus making the opening and closing motion trajectory of the door fixed. Therefore, configuring the hinge device 100 as a multi-axis single-degree-of-freedom mechanism helps improve the stability of the motion of each moving component in the hinge device 100, thereby improving the stability of the door's motion during opening and closing.

[0067] There are several ways to achieve rotatable connection between the various components of a hinge mechanism, such as... Figure 1 and Figure 2 As shown, the mounting base 10 is connected to the first rotating structure 20, the first rotating structure 20 to the swing arm 50, the swing arm 50 to the second rotating structure 30, or the second rotating structure 30 to the mounting base 10 via a revolute joint. Specifically, the mounting base 10 and the first rotating structure 20 can be connected via a revolute joint, the first rotating structure 20 and the swing arm 50 can be connected via a revolute joint, the swing arm 50 and the second rotating structure 30 can be connected via a revolute joint, and the second rotating structure 30 and the mounting base 10 can be connected via a revolute joint. This revolute joint connection allows for surface-to-surface contact, thereby improving the reliability of the two relatively rotating components.

[0068] like Figures 1 to 4As shown, a first connecting seat 61 is provided on one of the swing arm 50 and the connecting arm 40, and a first ball head 62 (or a ball pin) is provided on the other of the swing arm 50 and the connecting arm 40. The first connecting seat 61 is provided with a first spherical groove 611 and an opening 612 communicating with the first spherical groove 611. The first spherical groove 611 and the first ball head 62 are constructed as the first ball head structure (i.e., the first ball head pair) described above. The first segment 41 of the connecting arm 40 connected to the first ball head 62 passes through the opening 612, or the part of the swing arm 50 connected to the first ball head 62 passes through the opening 612. The first connecting seat 61 is also provided with a guide groove 613, which communicates with the first spherical groove 611. One end of the guide groove 613 extends to the end face where the opening 612 is located, so that when the ball head rotates in the first spherical groove 611, the first segment 41 can move in the guide groove 613.

[0069] like Figure 3 and Figure 4 As shown, the first connecting seat 61 is disposed on the swing arm 50, and the first ball head 62 is disposed on the connecting arm 40.

[0070] In this disclosure, the first connecting seat 61 and the first ball head 62 constitute a ball head sub-connecting structure 60, through which the swing arm 50 and the connecting arm 40 are connected. By providing the guide groove 613, during the opening and closing of the car door, when the connecting arm 40 and the swing arm 50 rotate around the center P4 of the first ball head, the first segment 41 of the connecting arm 40 can move within the guide groove 613, thereby avoiding interference between the connecting arm 40 and the first connecting seat 61. Moreover, the provision of the guide groove 613 helps to increase the rotation angle of the connecting arm 40 around the first connecting seat 61, thus ensuring that the rotation angle of the connecting arm 40 meets the requirements.

[0071] It is understood that in other embodiments of this disclosure, in order to ensure that the rotation angle of the connecting arm 40 about the first connecting seat 61 meets the requirements, see [reference needed]. Figure 4 In the illustrated embodiment, the depth of the spherical groove can be reduced so that the ball head protrudes from the opening 612 on the first spherical fixing seat. In this way, when the connecting arm 40 rotates around the first connecting seat 61, since the first segment 41 connected to the ball head is a certain distance from the first connecting seat 61, by reasonably designing this distance, interference between the first segment 41 and the first connecting seat 61 can be avoided, thereby preventing interference between the connecting arm 40 and the first connecting seat 61.

[0072] To ensure the stability of the car door when it is suspended at any opening position, optionally, such as Figure 4As shown, in one embodiment of this disclosure, the width of the guide groove 613 is adapted to the radial dimension of the first segment 41 of the connecting arm 40, so that the first segment 41 can be suspended within the guide groove 613. The first segment 41 is configured to move within the guide groove 613 under the action of an external driving force (such as the driving force of a strut) to open and close the car door. When the external driving force disappears, because the width of the guide groove 613 is adapted to the radial dimension of the first segment 41 of the connecting arm 40, the amount of swaying of the swing arm 50 and the car door during opening and closing, as well as when suspended at a certain position (such as the fully open position), can be reduced, especially the amount of swaying in the Y direction. In other words, in Figure 4 In the embodiment shown, the guide groove 613 also serves as a limiting function.

[0073] To avoid damage to both the first ball head 62 and the first spherical groove 611 due to friction, such as Figure 3 As shown, in one embodiment of this disclosure, the hinge device 100 may further include a wear-resistant bushing 63, that is, the ball joint connection structure 60 may further include a wear-resistant bushing 63, the wear-resistant bushing 63 being embedded in the first spherical groove 611, and the inner wall of the wear-resistant bushing 63 being used to contact the first ball head 62. This design can protect the first connecting seat 61 and the first ball head 62, reducing the risk of damage to both due to friction between the first ball head 62 and the first spherical groove 611, thereby helping to ensure the reliability of the rotational connection between the connecting arm 40 and the swing arm 50.

[0074] This disclosure does not limit the specific structure of the first rotating structure and the second rotating structure; alternatively, such as... Figure 1 and Figure 2 As shown, in one embodiment of this disclosure, the first rotating structure may include a first rotating block 21, which is rotatably connected to the mounting base 10 about a first rotating axis 101. The second rotating structure may include a second rotating block 31, which is rotatably connected to the mounting base 10 about a second rotating axis 102. The swing arm 50 is rotatably connected to the first rotating block 21 about a third rotating axis 103, and the second end of the connecting arm 40 is rotatably connected to the second rotating block 31 about a fourth rotating axis 104.

[0075] During the opening or closing of the car door, a door strut can be used to drive the swing arm 50, causing the swing arm 50 to rotate upward relative to the first rotating block 21 around the third rotation axis 103, and driving the first rotating block 21 to rotate around the first rotation axis 101. Simultaneously, the swing arm 50, through the first ball joint, drives the connecting arm 40 to rotate upward and outward around the center P4 of the first ball joint. The connecting arm 40 can rotate around the third rotation axis 103, simultaneously driving the second rotating block 31 to rotate around the second rotation axis 102. This allows the swing arm 50 to swing in both the Y and Z directions, thereby enabling the car door to swing in both directions, thus achieving the opening and closing of the car door.

[0076] In another embodiment of this disclosure, the first rotating structure includes a second connecting seat and a second ball head. The second connecting seat is disposed on one of the mounting base 10 and the swing arm 50, and the second ball head is disposed on the other of the mounting base 10 and the swing arm 50. A second spherical groove may be provided in the second connecting seat, and the second spherical groove and the second ball head can be configured to form a second ball head structure (i.e., a second ball head pair). The second rotating structure may include a third connecting seat and a third ball head. The third connecting seat is disposed on one of the mounting base 10 and the connecting arm 40, and the third ball head is disposed on the other of the mounting base 10 and the connecting arm 40. A third spherical groove is provided in the third connecting seat, and the third spherical groove and the third ball head can be configured to form a third ball head structure (i.e., a third ball head pair). In other words, the swing arm 50 can be connected to the mounting base 10 using a second ball head pair, and the second end of the connecting arm 40 can be connected to the mounting base 10 using a third ball head pair. With this design, the hinge device 100 can be designed as a three-ball head structure hinge, which is simple in structure and facilitates smoother swing of the swing arm 50.

[0077] It is understood that, in one embodiment of this disclosure, the first rotating structure may include the first rotating block 21 mentioned above, and the second connecting interface may include the third ball joint mentioned above. Alternatively, the first rotating structure may include the second ball joint mentioned above, and the second connecting interface may include the second rotating block 31 mentioned above.

[0078] Optionally, corresponding guide grooves can also be provided on the second and third connecting seats, and wear-resistant bushings can also be provided in the second and third spherical grooves.

[0079] Optionally, such as Figure 2 As shown, in one embodiment of this disclosure, the first rotation axis 101 and the second rotation axis 102 intersect at a first point P1. The first rotating block 21 and the second rotating block 31 are arranged symmetrically about a first normal plane. The first normal plane is the normal plane of the first surface 11 of the mounting base 10 facing the swing arm 50. The line connecting the first point P1 and the center P4 of the first ball head is located in this normal plane.

[0080] As mentioned above, this design makes at least a portion of the hinge device 100 (the first rotating block 21 and the second rotating block 31) a symmetrical mechanism. This helps ensure machining accuracy and facilitates assembly. Moreover, the symmetrical structure provides good stability and uniform force distribution, which helps reduce the amount of swaying during the opening and closing of the door. Furthermore, when the door is closed, the symmetrical design of the hinge device 100 ensures uniform force distribution and minimal sinking of both the hinge device 100 and the door, resulting in superior door closing and holding performance.

[0081] Optionally, such as Figure 2 , Figure 5 and Figure 6 As shown, the first rotation axis 101 intersects the third rotation axis 103 at the second point P2, and the second rotation axis 102 intersects the fourth rotation axis 104 at the third point P3. No two of the first point P1, the second point P2, the third point P3, or the center of the first ball head P4 coincide. Because no two of the first point P1, the second point P2, the third point P3, or the center of the first ball head P4 coincide, it helps to reduce the processing and assembly difficulty of the hinge device.

[0082] like Figure 2 , Figure 5 and Figure 6 As shown, the first distance between the end face of the first rotating block 21 near the first point P1 and the second point P2 can be equal to the second distance between the end face of the second rotating block 31 near the first point P1 and the third point P3; the third distance between the second point P2 and the center of the first ball P4 can be equal to the fourth distance between the third point P3 and the center of the first ball P4. For this design, see [reference needed]. Figure 5 and Figure 6 The motion of the parts of the first rotating block 21, the second rotating block 31, the connecting arm 40, and the swing arm 50 connected between the second point P2 and the center of the first ball P4 can be simplified into the motion of multiple links.

[0083] See Figure 5 At this time, the swing arm 50 is in the closed position of the car door. During the opening of the car door, the swing arm 50 can be driven by, for example, the door strut, so that the swing arm 50 rotates upward around the second point P2. At the same time, the first rotating block 21 rotates around... Figure 5 Point A in the middle swings upward and to the left. Simultaneously, the swing arm 50, through the first ball joint, drives the connecting arm 40 to rotate downward and outward (along the Y direction) around the center P4 of the first ball joint. The connecting arm 40 can rotate upward around the third point P3, simultaneously driving the second rotating block 31 to rotate... Figure 5 Point B in the image swings to the upper right, moving until... Figure 6The position shown enables the car door to open. In other words, the first rotating block and the second rotating block can rotate in opposite directions at the same speed around the first rotation axis 101 and the second rotation axis 102, respectively, and the swing arm 50 and the connecting arm 40 can perform symmetrical spatial movements at the same speed.

[0084] exist Figure 5 and Figure 6 In the diagram, the distance between point A and the second point P2 is the first distance, and the distance between point B and the third point P3 is the second distance.

[0085] It should be noted that, Figure 5 and Figure 6 This is a planar schematic diagram, which only schematically shows the changes in position of each point and each link in the XZ plane (i.e., the plane defined by the X and Z directions) from the closed position to the open position of the door. The changes in position of each point and each link in the YZ plane (i.e., the plane defined by the Y and Z directions) from the closed position to the open position of the door are not shown.

[0086] As mentioned above, in this disclosure, the rotation axes of each rotating component in the mechanism formed by the mounting base 10, the first rotating block 21, the second rotating block 31, the connecting arm 40, and the swing arm 50 intersect at multiple points. Compared with the prior art's spatial four-bar linkage scheme that requires intersection at a single point, the multi-point scheme provided in this application helps reduce the difficulty of processing and assembly.

[0087] See Figure 1 and Figure 2 Optionally, the first rotation axis 101 and the second rotation axis 102 are located in the XZ plane (i.e., the plane defined by the X and Z directions). The angle between the first rotation axis 101 and the second rotation axis 102 is the first included angle γ, the angle between the first rotation axis 101 and the third rotation axis 103 is the second included angle α, and the angle between the second rotation axis 102 and the fourth rotation axis 104 is the third included angle β. The first included angle γ, the second included angle α, and the third included angle β are all acute angles. The angles of the first included angle γ, the second included angle α, and the third included angle β are set to remain constant during the swing of the swing arm 50. For example, see [reference needed]. Figure 1 and 2 After the first rotating block 21 and the second rotating block 31 are installed on the mounting base 10, the angles between the first rotating axis 101 and the second rotating axis 102, the angle between the first rotating axis 101 and the third rotating axis 103, and the angle between the second rotating axis 102 and the third rotating axis 103 all remain unchanged. The first included angle γ can be used to limit the upward swing angle of the swing arm 50 in the Z direction, and the angles of the second included angle α and the third included angle β are used to limit the outward swing angle of the swing arm 50 in the Y direction.

[0088] As the first rotating block 21 rotates around the first rotation axis 101, the swing arm 50 rotates with the first rotating block 21. At the same time, the swing arm 50 rotates upward around the third rotation axis 103, realizing the upward rotation of the car door. During the upward rotation, the swing arm 50 also rotates outward around the center P4 of the first ball head in the Y direction, thereby simultaneously realizing the upward swing of the car door in both the Y and Z directions.

[0089] This disclosure does not limit the specific shape of the swing arm 50 and the door's movement trajectory; alternatively, see [reference needed]. Figure 7 In one embodiment of this disclosure, the motion trajectory of the swing arm 50 during the opening or closing of the car door is a cosine curve in the spatial coordinates defined by the X, Y, and Z directions. That is, the swing arm 50 exhibits an arc-shaped motion trajectory in the spatial coordinates defined by the X, Y, and Z directions.

[0090] This disclosure does not limit the side opening angle and upward opening angle of the car door. Optionally, in one embodiment of this disclosure, the swing arm 50 is configured such that, during the process of switching the car door from the closed state to the fully open state, the swing arm 50 rotates outward about the first rotation axis 101 in the XY plane (i.e., in the plane defined by the X and Y directions) by an angle less than or equal to 45°, and the swing arm 50 rotates upward about the third rotation axis 103 in the YZ plane (i.e., in the plane defined by the Y and Z directions) by an angle less than or equal to 50°.

[0091] This disclosure does not limit the structure for the rotatable connection between the swing arm 50 and the first rotating block 21, or between the connecting arm 40 and the second rotating block 31. For example... Figure 2 As shown, in one embodiment of this disclosure, the swing arm 50 is further provided with a first mounting hole (not shown), and the first rotating block 21 is provided with a first rotating shaft 211. The first rotating shaft 211 is inserted into the first mounting hole around a third rotating axis 103. Here, the third rotating axis 103 is the axis of the first rotating shaft 211.

[0092] Optionally, the connecting arm 40 is also provided with a second mounting hole (not shown), and the second rotating block 31 is provided with a second rotating shaft 311. The second rotating shaft 311 is inserted into the second mounting hole around the fourth rotating axis 104. Here, the fourth rotating axis 104 is the axis of the second rotating shaft 311.

[0093] It is understood that in other embodiments of this disclosure, mounting holes may be provided on the first rotating block 21 and the second rotating block 31, while rotating shafts that cooperate with the mounting holes may be provided on the swing arm 50 and the connecting arm 40.

[0094] In this disclosure, the first rotating block 21 and the second rotating block 31 can be mounted on the mounting base 10 using any suitable structure. Optionally, as... Figure 1 and Figure 2 As shown, in one embodiment of this disclosure, the hinge device 100 further includes a first mounting bracket and a second mounting bracket. The first mounting bracket includes a pair of first lugs 12, which are spaced apart on the mounting base 10. The two ends of the first rotating block 21 are rotatably mounted on the corresponding first lugs 12 around a first rotation axis 101. For example, the two ends of the first rotating block 21 are rotatably mounted on the corresponding first lugs 12 via a third rotating shaft, the axis of which is the first rotation axis 101. The second mounting bracket includes a pair of second lugs 13, which are spaced apart on the mounting base 10. The two ends of the second rotating block 31 are rotatably mounted on the corresponding second lugs 13 around a second rotation axis 102. For example, the two ends of the second rotating block 31 are rotatably mounted on the corresponding second lugs 13 via a fourth rotating shaft, the axis of which is the second rotation axis 102.

[0095] Optionally, in this disclosure, the first mounting bracket and the second mounting bracket may be fixed to the mounting base 10 by means such as welding or screwing.

[0096] Alternatively, in other embodiments of this disclosure, the first mounting bracket and the second mounting bracket may be integrally formed with the mounting base 10.

[0097] To facilitate the rotation of the door around the hinge mechanism 100, such as Figure 1 As shown, at least one ball joint pin 70 may be provided on the swing arm 50. The ball joint pin 70 is used to connect to one end of a door support rod (not shown) to rotate about the hinge device 100 under the action of an electric spring, a pneumatic spring, or a balance spring. Optionally, the door support rod may include a support rod of the type of electric spring, pneumatic spring, or balance spring. During installation, the other end of the door support rod may be mounted on the vehicle body. The specific structure and working principle of the door support rod are well known to those skilled in the art and will not be described in detail here.

[0098] Optionally, such as Figure 1 As shown, there are two ball joint pins 70, and each of the two ball joint pins 70 is hinged to a door support rod.

[0099] In this disclosure, such as Figures 1 to 4 As shown, the swing arm 50 may include a first part 51 and a second part 52. The first part 51 may be connected to the first connecting block connecting arm 40, and the second part 52 may be connected to the car door.

[0100] According to another aspect of this disclosure, a door assembly is provided, which includes a door and the aforementioned hinge device 100, wherein, during installation, the swing arm 50 of the hinge device can be connected to the door (e.g., by screwing).

[0101] According to another aspect of this disclosure, a vehicle is provided, the vehicle including a body and the aforementioned door assembly, wherein the mounting base 10 of the hinge device 100 is connected to the body so that the door can be hinged to the body via the hinge device 100.

[0102] The vehicle may also include a door strut for driving the movement of the swing arm 50, the door strut being hinged to the ball joint pin 70 on the swing arm 50.

[0103] In this disclosure, the hinge device 100 can be designed as a symmetrical double-crank five-bar mechanism, which is easy to manufacture and assemble. The working principle and process of the hinge device 100 in opening the car door are briefly described below with reference to the accompanying drawings.

[0104] The car door is closed as shown in the attached image. Figure 1 and Figure 2 As shown, the swing arm 50 and the mounting base 10 are compressed as much as possible into the same YZ plane. When the car door needs to be opened, the extension and retraction of the door support rod can apply force to the points where the two ball joint pins 70 are located, causing the swing arm 50 to move in space. Specifically, the swing arm 50 moves around the third rotation axis 103 and the center P4 of the first ball joint in a combined trajectory of side opening and upward opening of the car door. Due to the movement of the swing arm 50, the first rotating block 21 is driven to rotate around the first rotation axis 101. Based on the symmetrical design, under the action of the swing arm 50, the connecting arm 40 also moves in space, that is, the connecting arm 40 moves around the fourth rotation axis 104, the center P4 of the first ball joint, and the swing third rotation axis 103 in a combined trajectory of side opening and upward rotation of the car door. At the same time, due to the movement of the connecting arm 40, the second rotating block 31 is driven to rotate around the second rotation axis 102 in a fixed axis.

[0105] When the first rotating block 21 rotates to 45° around the first rotation axis 101, the swing arm 50 simultaneously drives the car door to rotate upwards to approximately 50° around the third rotation axis, thus completing the door opening action. At this time, the swing arm 50 and the car door (not shown) are in the following position. Figure 7 The image shows the fully open position. Closing the door is the reverse of opening it, so it will not be described further here.

[0106] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0107] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0108] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A hinge device, characterized in that, It includes a mounting base, a first rotating structure, a second rotating structure, a connecting arm, and a swing arm; The mounting base is used to be mounted on the vehicle body, and the swing arm is used to be connected to the vehicle door; The first rotating structure and the second rotating structure are respectively connected to the mounting base; The swing arm is rotatably connected to the first rotating structure about a third rotating axis, and the first end of the swing arm is connected to the first end of the connecting arm through a first ball joint structure, and the second end of the connecting arm is rotatably connected to the second rotating structure about a fourth rotating axis. The first rotating structure is rotatably connected to the mounting base about a first rotating axis; The second rotating structure is rotatably connected to the mounting base about a second rotating axis; The first rotation axis and the second rotation axis are arranged symmetrically.

2. The hinge device according to claim 1, characterized in that, The first rotation axis intersects the second rotation axis at a first point; The first rotation axis and the second rotation axis are arranged symmetrically about the first normal plane. The first normal plane is the normal plane on the mounting base facing the first surface of the swing arm. The line connecting the first point and the center of the first ball head is located in this normal plane.

3. The hinge device according to claim 2, characterized in that, The first rotating structure and the second rotating structure are arranged symmetrically about the first normal plane.

4. The hinge device according to claim 1, characterized in that, The hinge device is constructed as a multi-axis single-degree-of-freedom mechanism.

5. The hinge device according to claim 1, characterized in that, The mounting base and the first rotating structure, the first rotating structure and the swing arm, the swing arm and the second rotating structure, or the second rotating structure and the mounting base are connected by a rotating pair.

6. The hinge device according to claim 1, characterized in that, A first connecting seat is provided on one of the swing arm and the connecting arm, and a first ball head is provided on the other of the swing arm and the connecting arm; The first connecting seat is provided with a first spherical groove and an opening communicating with the first spherical groove. The first spherical groove and the first ball head are configured as the first ball head structure. The first section of the connecting arm connected to the first ball head passes through the opening; or, the part of the swing arm connected to the first ball head passes through the opening.

7. The hinge device according to claim 6, characterized in that, The first connecting seat is also provided with a guide groove, which is connected to the first spherical groove, and one end of the guide groove extends to the end face where the opening is located, so that when the first ball head rotates in the first spherical groove, the first segment can move in the guide groove.

8. The hinge device according to claim 7, characterized in that, The width of the guide groove is adapted to the radial dimension of the first segment so that the first segment can be suspended in the guide groove, and the first segment is configured to be able to move in the guide groove under the action of an external driving force.

9. The hinge device according to any one of claims 1-8, characterized in that, The first rotating structure includes a first rotating block, which is rotatably connected to the mounting base about a first rotating axis; The second rotating structure includes a second rotating block, which is rotatably connected to the mounting base about a second rotating axis; The swing arm is rotatably connected to the first rotating block about a third rotation axis, and the second end of the connecting arm is rotatably connected to the second rotating block about a fourth rotation axis.

10. The hinge device according to claim 9, characterized in that, The first rotation axis intersects the second rotation axis at a first point. The first rotating block and the second rotating block are arranged symmetrically about a first normal plane. The first normal plane is the normal plane on the mounting base facing the first surface of the swing arm. The line connecting the first point and the center of the first ball head is located in this normal plane.

11. The hinge device according to claim 10, characterized in that, The first rotation axis intersects the third rotation axis at a second point, and the second rotation axis intersects the fourth rotation axis at a third point. No two of the first point, the second point, the third point, and the center point of the first ball head coincide.

12. The hinge device according to claim 11, characterized in that, The first distance between the end face of the first rotating block near the first point and the second point is equal to the second distance between the end face of the second rotating block near the first point and the third point.

13. The hinge device according to claim 11, characterized in that, The third distance between the second point and the center of the first ball head is equal to the fourth distance between the third point and the center of the first ball head.

14. The hinge device according to claim 9, characterized in that, The first rotation axis and the second rotation axis are located in the XZ plane; The angle between the first rotation axis and the second rotation axis is the first included angle; the angle between the first rotation axis and the third rotation axis is the second included angle; the angle between the second rotation axis and the fourth rotation axis is the third included angle; the angles of the first included angle, the second included angle, and the third included angle are set to remain constant during the swing arm swing.

15. The hinge device according to claim 9, characterized in that, The swing arm is further provided with a first mounting hole, and the first rotating block is provided with a first rotating shaft, which is inserted into the first mounting hole around the third rotating axis; and / or, The connecting arm is also provided with a second mounting hole, and the second rotating block is provided with a second rotating shaft, which is inserted into the second mounting hole around the fourth rotating axis.

16. The hinge device according to claim 9, characterized in that, The hinge device further includes a first mounting bracket and a second mounting bracket. The first mounting bracket includes a pair of first lugs, which are spaced apart on the mounting base. The two ends of the first rotating block are rotatably mounted on the corresponding first lugs around the first rotation axis. The second mounting bracket includes a pair of second lugs, which are spaced apart on the mounting base. The two ends of the second rotating block are rotatably mounted on the corresponding second lugs around the second rotation axis.

17. The hinge device according to any one of claims 1-8, characterized in that, The first rotating structure includes a second connecting seat and a second ball head. The second connecting seat is disposed on one of the mounting base and the swing arm, and the second ball head is disposed on the other of the mounting base and the swing arm. The second connecting seat is provided with a second spherical groove, and the second spherical groove and the second ball head are configured to form a second ball head structure. The second rotating structure includes a third connecting seat and a third ball head. The third connecting seat is disposed on one of the mounting base and the connecting arm, and the third ball head is disposed on the other of the mounting base and the connecting arm. The third connecting seat is provided with a third spherical groove, and the third spherical groove and the third ball head are configured to form a third ball head structure.

18. The hinge device according to any one of claims 1-8, characterized in that, The swing arm is provided with at least one ball joint pin, which is used to connect to one end of the door strut.

19. A vehicle door assembly, characterized in that, Includes a vehicle door and a hinge device according to any one of claims 1-18, wherein the swing arm is connected to the vehicle door.

20. A vehicle, characterized in that, Includes a vehicle body and a door assembly according to claim 19, wherein the mounting base is connected to the vehicle body.

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