Hinge device, vehicle door assembly and vehicle

Abstract

The invention 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 swinging arm, the mounting base is used for being mounted on a vehicle body, and the swinging arm is used for being connected with a vehicle door; the first rotating structure and the second rotating structure are respectively connected to the mounting base, the swinging arm is rotatably connected with the first rotating structure, the swinging arm is connected with a first end of the connecting arm through a first ball head structure, a second end of the connecting arm is rotatably connected with the second rotating structure, and the swinging arm is connected with a second end of the connecting arm through a second ball head structure. The swing arm can swing in the preset direction, and opening and closing of the vehicle door are achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle parts, and in particular, to a hinge device, a door assembly and a vehicle. Background Art

[0002] With the continuous development of vehicles, various new door technologies are constantly applied to the market. Special-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 achieve the smooth opening and closing of special-shaped doors (such as scissor doors) has become a problem that everyone is paying more and more attention to. Summary of the invention

[0003] The object of the present disclosure is to provide a hinge device, a vehicle door assembly and a vehicle, through which the vehicle door can be opened and closed.

[0004] In order to achieve the above-mentioned object, the present 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 connecting arm through a first ball head 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 around a first rotating axis;

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

[0010] The first rotation axis is arranged symmetrically to the second rotation axis.

[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 constructed to be symmetrically arranged about a first normal plane, the first normal plane is a normal plane of the first surface of the mounting base facing the swing arm, and a line connecting the first point and the center of the first ball head is located in the normal plane.

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

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

[0015] Optionally, a rotating pair is used to connect 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.

[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] A first spherical groove and an opening connected to the first spherical groove are provided in the first connecting seat, the first spherical groove and the first ball head are constructed as the first ball head structure, the first section of the connecting arm connected to the first ball head is passed through the opening, or the part of the swing arm connected to the first ball head is passed through the opening.

[0018] Optionally, a guide groove is further provided on the first connecting seat, the guide groove is connected to the first spherical groove, and one end of the guide groove extends to the end surface where the opening is located, so that when the first ball head rotates in the first spherical groove, the first section can move in the guide groove.

[0019] Optionally, the width dimension 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 comprises a first rotating block, and the first rotating block is rotatably connected to the mounting base around a first rotating axis;

[0021] The second rotating structure comprises a second rotating block, and the second rotating block is rotatably connected to the mounting base around a second rotating axis;

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

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

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

[0025] A first distance between an end surface of the first rotating block close to the first point and the second point is equal to a second distance between an end surface of the second rotating block close to the first point and the third point.

[0026] Optionally, a third distance between the second point and the center of the first ball head is equal to a 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 angle, the angle between the first rotation axis and the third rotation axis is the second angle; the angle between the second rotation axis and the fourth rotation axis is the third angle; the angle of the first angle, the angle of the second angle and the third angle are set to remain constant during the swing of the swing arm.

[0029] Optionally, a first mounting hole is further provided on the swing arm, a first rotating shaft is provided on the first rotating block, 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, the second rotating block is provided with a second rotating shaft, and the second rotating shaft is inserted into the second mounting hole around a fourth rotating axis.

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

[0032] The first mounting bracket comprises a pair of first lugs, the pair of first lugs are arranged on the mounting base at intervals, and two ends of the first rotating block are respectively rotatably mounted on the corresponding first lugs around the first rotating axis;

[0033] The second mounting bracket includes a pair of second lugs, which are arranged on the mounting base at intervals, and two ends of the second rotating block are respectively rotatably mounted on the corresponding second lugs around the second rotating axis.

[0034] Optionally, the first rotating structure includes a second connecting seat and a second ball head, the second connecting seat is arranged on one of the mounting base and the swing arm, the second ball head is arranged on the other of the mounting base and the swing arm, a second spherical groove is arranged in the second connecting seat, and the second spherical groove and the second ball head are configured as 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 arranged on one of the mounting base and the connecting arm, the third ball head is arranged on the other of the mounting base and the connecting arm, a third spherical groove is arranged in the third connecting seat, and the third spherical groove and the third ball head are constructed as a third ball head structure.

[0036] Optionally, at least one ball pin is provided on the swing arm, and the ball pin is used to be connected to one end of the door strut.

[0037] According to another aspect of the present disclosure, a vehicle door assembly is provided, comprising a vehicle door and the above-mentioned hinge device, wherein the swing arm is connected to the vehicle door.

[0038] According to another aspect of the present disclosure, a vehicle is provided, comprising a vehicle body and the above-mentioned door assembly, wherein the mounting base is connected to the vehicle body.

[0039] In the hinge device provided in the present invention, the mounting base, the first rotating structure, the second rotating structure, the connecting arm and the swing arm are constructed as a five-link spatial hinge device, which, when applied to a vehicle, can realize the opening and closing of special-shaped doors (such as scissor-type doors).

[0040] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0042] Figure 1 is a schematic diagram of a three-dimensional structure of a hinge device provided in an embodiment of the present disclosure, wherein the swing arm is in a position where the door is in a closed state;

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

[0044] Figure 3 is a partial structural schematic diagram of a hinge device provided by an 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 is a partial structural schematic diagram of a hinge device provided by an embodiment of the present disclosure, wherein the swing arm is in a second position, in which the swing arm is located in the guide limit groove, and the axis of the swing arm is perpendicular to the axis of the opening of the spherical groove;

[0046] Figure 5 is a front view schematic diagram of a hinge device simplified into a connecting rod mechanism provided by an embodiment of the present disclosure, wherein the hinge device is in a first state, in which the vehicle door is in a closed position;

[0047] Figure 6 is a front view schematic diagram of a hinge device simplified into a connecting rod mechanism provided by an embodiment of the present disclosure, wherein the hinge device is in a second state, in which the vehicle door is in a fully open position;

[0048] Figure 7 It is a schematic diagram of the three-dimensional structure of a hinge device provided by an embodiment of the present disclosure from another perspective, wherein the position of the swing arm when the door is fully opened is indicated by a dotted line.

[0049] Description of Reference Numerals

[0050] 100-hinge device; 10-mounting base; 11-first surface; 12-first lug; 13-second lug; 20-first rotating structure; 21-first rotating block; 211-first rotating shaft; 30-second rotating structure; 31-second rotating block; 311-second rotating shaft; 40-connecting arm; 41-first section; 50-swinging arm; 51-first part; 52-second part; 60-ball head connection structure; 61-second 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 angle; α-second angle; β-third angle. DETAILED DESCRIPTION

[0051] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0052] In the present disclosure, unless otherwise stated, the directions or positional relationships indicated by the directional words such as "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present disclosure. For example, the up, down, left, right, front, and rear directions may be consistent with the up, down, left, right, front, and rear directions of the vehicle. The Z direction may be consistent with the direction toward the top in the up-down direction (i.e., the height direction) of the vehicle, the X direction may be consistent with the direction toward the front in the front-to-back direction (i.e., the length direction, also the longitudinal direction) of the vehicle, and the Y direction may be consistent with the direction away from the longitudinal center plane in the left-right direction (i.e., the width direction, also the lateral direction) of the vehicle. For details, please refer to Figure 1 , Figure 2 and Figure 7 The coordinate direction in .

[0053] Furthermore, in the present disclosure, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0054] In addition, in the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0055] For the scissor door, a hinge structure is used to connect with the vehicle body so that the door can swing laterally (i.e., Y direction, the width direction of the vehicle) and in the up and down direction (i.e., Z direction, the height direction of the vehicle) so that the door can be opened laterally outward (i.e., Y direction outward) and upward (i.e., Z direction upward) by moving it laterally inward (i.e., Y direction inward) and downward (i.e., Z direction downward) by moving it laterally inward (i.e., Y direction inward) and downward (i.e., Z direction downward) by closing it.

[0056] like Figures 1 to 7As shown, the present 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 to be mounted (such as screwed) on a vehicle body (not shown), the swing arm 50 is used to be connected (such as screwed) to a vehicle door (such as a scissor-type vehicle door), the first rotating structure 20 and the second rotating structure 30 are respectively connected to the mounting base 10, the swing arm 50 (such as the upper end of the swing arm 50) is rotatably connected to the first rotating structure 20, and the swing arm 50 is connected to the first end of the connecting arm 40 through a first ball head structure, and the second end of the connecting arm 40 is rotatably connected to the second rotating structure 30. In this way, by reasonably installing the hinge device, the swing arm 50 can be swung in the Y direction (the width direction of the vehicle) and the Z direction (the height direction of the vehicle), so that the vehicle door can be swung in the Y direction and the Z direction, and the vehicle door can be opened and closed.

[0057] During installation, the front end of the door (such as a scissor door or other special-shaped door) can be hinged to the vehicle body through the hinge device 100. When the swing arm 50 swings outward along the Y direction and upward along the Z direction, the rear end of the door can swing outward along the Y direction and upward along the Z direction around the hinge device 100, thereby realizing the opening of the door. When the door needs to be closed, the swing arm 50 can be swung inward along the Y direction and downward along the Z direction, thereby realizing the closing of the door.

[0058] In the hinge device 100 provided in the present invention, 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-link. When applied to a vehicle, the door (such as a scissor-type door) can be smoothly opened and closed in a preset direction, for example, in the Y direction and the Z direction, and the structure is simple.

[0059] In addition, the study found that in related technologies, the hinge structure used for scissor doors usually adopts a spatial four-bar linkage and its derivatives, requiring the rotation axes of each link to intersect at one point, resulting in high machining and assembly accuracy of the hinge structure, and the machining process and assembly are difficult to control.

[0060] Compared with the existing spatial four-bar linkage with high assembly precision, the hinge device 100 disclosed in the present invention does not require that the multiple rotation axes of the hinge device 100 are relative to one 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 may intersect at multiple points, thus facilitating reduction of machining accuracy and assembly difficulty.

[0061] It is understandable that the first ball head structure may be a ball joint structure or a universal joint, and the present disclosure does not limit this.

[0062] In addition, it can be understood that the vehicle door of the present disclosure can be not only a special-shaped vehicle door such as a scissor door, but also other special-shaped vehicle doors suitable for opening and closing using the hinge device provided by the present disclosure, and the present disclosure does not limit this.

[0063] like Figure 2 As shown, in one embodiment of the present disclosure, the first rotating structure 20 is rotatably connected to the mounting base 10 around the first rotating axis 101, and the second rotating structure 30 is rotatably connected to the mounting base 10 around the second rotating axis 102, and the first rotating axis 101 can be symmetrically arranged with the second rotating axis 102. The symmetrical arrangement of the first rotating axis 101 with the second rotating axis 102 is conducive to designing the motion trajectory of the first rotating structure 20 and the second rotating structure 30, thereby simplifying the motion trajectory of the hinge device. In addition, the symmetrical arrangement of the first rotating axis 101 with the second rotating axis 102 is conducive to improving the vehicle door during the rotation process, so that the first rotating structure 20 and the second rotating structure 30 can be evenly stressed, which is conducive to reducing the shaking amount of the vehicle door opening and closing process. In addition, when the vehicle door is in a closed state, due to the symmetrical design of the rotating axis of the hinge device 100, it is conducive to making the hinge device 100 and the vehicle door evenly stressed and the amount of sinking small, so that the vehicle door has a better closing and holding performance.

[0064] In the present disclosure, the first rotating structure 20 and the second rotating structure 30 may be symmetrical about any suitable symmetrical plane, and the present disclosure is not limited to this. Figure 2 As shown, optionally, the first rotation axis 101 and the second rotation axis 102 intersect at a first point P1, and 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 a normal plane of the first surface 11 on the mounting base 10 facing the swing arm 50, and the line connecting the first point P1 and the center P4 of the first ball head is located in the normal plane. In this way, when opening and closing the door, the rotation of the first rotation structure 20 and the second rotation structure 30 is always symmetrical compared to the rotation of the mounting base 10, so that the swing arm 50 moves in a preset direction, thereby realizing the opening and closing of the door.

[0065] In addition to achieving symmetrical support of the rotation axis, such as Figures 1 to 3As shown, the first rotating structure 20 and the second rotating structure 30 can be constructed to be symmetrically arranged about the first normal plane mentioned above. The symmetrical design of the structure enables at least part of the structure of the hinge device 100 to be set as a symmetrical mechanism, which is conducive to simplifying the structure. Moreover, since the symmetrical structure has good stability and uniform force, it is conducive to further reducing the amount of shaking during the opening and closing process of the door. In addition, when the door is in a closed state, due to the symmetrical design of the hinge device 100 structure, the hinge device 100 and the door can be further uniformly stressed and the amount of sinking is small, so that the door has a better closing and holding performance.

[0066] In the present disclosure, the hinge device 100 can be constructed as a multi-axis single-degree-of-freedom mechanism, that is, the motion trajectory of each movable component in the hinge device 100 is certain, for example, the motion trajectory of the swing arm 50 connected to the door is certain, so that the motion trajectory of the door opening and closing is certain. Therefore, setting the hinge device 100 as a multi-axis single-degree-of-freedom mechanism is conducive to improving the stability of the motion of each moving component in the hinge device 100, thereby helping to improve the stability of the door during opening and closing.

[0067] There are many ways to achieve rotatable connection between the above-mentioned components of the hinge device, such as Figure 1 and Figure 2 As shown, a revolute pair is used to connect the mounting base 10 and the first rotating structure 20, the first rotating structure 20 and the swing arm 50, the swing arm 50 and the second rotating structure 30, or the second rotating structure 30 and the mounting base 10. That is, the mounting base 10 and the first rotating structure 20 can be connected by a revolute pair, the first rotating structure 20 and the swing arm 50 can be connected by a revolute pair, the swing arm 50 and the second rotating structure 30 can be connected by a revolute pair, and the second rotating structure 30 and the mounting base 10 can be connected by a revolute pair. The revolute pair connection can achieve surface-to-surface contact, thereby improving the reliability of two components that rotate relative to each other.

[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 (which can also be a ball head pin) is provided on the other of the swing arm 50 and the connecting arm 40. A first spherical groove 611 and an opening 612 connected to the first spherical groove 611 are provided in the first connecting seat 61. The first spherical groove 611 and the first ball head 62 are constructed as the above-mentioned first ball head structure (i.e., the first ball head pair). The first section 41 of the connecting arm 40 connected to the first ball head 62 is passed through the opening 612, or the portion where the swing arm 50 is connected to the first ball head 62 is passed through the opening 612. A guide groove 613 is also provided on the first connecting seat 61. The guide groove 613 is connected to the first spherical groove 611, and 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 section 41 can move in the guide groove 613.

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

[0070] In the present disclosure, the first connection seat 61 and the first ball head 62 are equivalent to constructing a ball head sub-connection structure 60, and the swing arm 50 is connected to the connection arm 40 through the ball head sub-connection structure 60. By providing the guide groove 613, during the door opening and closing process, when the connection arm 40 and the swing arm 50 rotate around the ball center P4 of the first ball head, the first section 41 of the connection arm 40 can move in the guide groove 613, thereby avoiding interference between the connection arm 40 and the first connection seat 61. In addition, since the guide groove 613 is provided, it is beneficial to increase the rotation angle of the connection arm 40 around the first connection seat 61, so that the rotation angle of the connection arm 40 meets the requirements.

[0071] It can be understood that in other embodiments of the present disclosure, in order to make the rotation angle of the connecting arm 40 around the first connecting seat 61 meet the requirements, see Figure 4 In the illustrated embodiment, the depth of the spherical groove can be reduced so that part of 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 section 41 connected to the ball head is at a distance from the first connecting seat 61, by reasonably designing this distance, interference between the first section 41 and the first connecting seat 61 can be avoided, thereby avoiding interference between the connecting arm 40 and the first connecting seat 61.

[0072] In order to ensure the stability of the door hovering at any opening position, optionally, as Figure 4As shown, in one embodiment of the present disclosure, the width dimension of the guide groove 613 is adapted to the dimension of the first section 41 of the connecting arm 40, so that the first section 41 can hover in the guide groove 613, and the first section 41 is configured to be able to move in the guide groove 613 under the action of an external driving force (such as the driving force of the strut) to facilitate opening and closing of the door. When the external driving force disappears, since the width dimension of the guide groove 613 is adapted to the radial dimension of the first section 41 of the connecting arm 40, the shaking amount of the swing arm 50 and the door during the opening and closing process and when hovering in a certain position (such as the fully open position), especially the shaking amount in the Y direction, can be reduced. In other words, in Figure 4 In the illustrated embodiment, the guide groove 613 also serves as a limit.

[0073] In order to avoid the friction between the first ball head 62 and the first spherical groove 611 causing damage to both, Figure 3 As shown, in one embodiment of the present disclosure, the hinge device 100 may further include a wear-resistant bushing 63, that is, the ball head auxiliary connection structure 60 may further include a wear-resistant bushing 63, the wear-resistant bushing 63 is embedded in the first spherical groove 611, and the inner wall of the wear-resistant bushing 63 is used to contact the first ball head 62. Such a design can protect the first connection seat 61 and the first ball head 62, and can reduce the risk of damage to the first ball head 62 and the first spherical groove 611 due to friction, thereby facilitating the reliability of the connection arm 40 and the swing arm 50 being rotatably connected.

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

[0075] During the process of opening or closing the door, the swing arm 50 can be driven by, for example, a door stay, so that the swing arm 50 rotates upward relative to the first rotating block 21 around the third rotating axis 103, and drives the first rotating block 21 to rotate around the first rotating axis 101. At the same time, the swing arm 50 drives the connecting arm 40 to rotate upward and outward around the ball center P4 of the first ball head through the first ball head pair, and the connecting arm 40 can rotate around the third rotating axis 103, and at the same time drive the second rotating block 31 to rotate around the second rotating axis 102, so that the swing arm 50 can swing in the Y direction and the Z direction, so that the door can swing in the Y direction and the Z direction, and the door can be opened and closed.

[0076] In another embodiment of the present disclosure, the first rotating structure includes a second connecting seat and a second ball head, the second connecting seat is arranged on one of the mounting base 10 and the swing arm 50, the second ball head is arranged on the other of the mounting base 10 and the swing arm 50, a second spherical groove can be arranged in the second connecting seat, and the second spherical groove can be configured with the second ball head 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 arranged on one of the mounting base 10 and the connecting arm 40, the third ball head is arranged on the other of the mounting base 10 and the connecting arm 40, a third spherical groove is arranged in the third connecting seat, and the third spherical groove can be configured with the third ball head 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 by using the second ball head pair, and the second end of the connecting arm 40 can be connected to the mounting base 10 by using the third ball head pair. With such a design, the hinge device 100 can be designed as a three-ball head structure hinge, which has a simple structure and is conducive to making the swing of the swing arm 50 smoother.

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

[0078] Optionally, corresponding guide grooves may be provided on the second connecting seat and the third connecting seat, and wear-resistant bushings may be provided in the second spherical groove and the third spherical groove.

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

[0080] As mentioned above, such a design enables at least part of the structure of the hinge device 100 (the first rotating block 21 and the second rotating block 31) to be set as a symmetrical mechanism, which is conducive to ensuring processing accuracy and facilitating assembly. Moreover, since the symmetrical structure has good stability and uniform force, it is conducive to reducing the shaking amount during the opening and closing process of the door. In addition, when the door is in a closed state, due to the symmetrical design of the hinge device 100, the hinge device 100 and the door can be uniformly stressed and the amount of sinking is small, so that the door has a better closing and holding performance.

[0081] Alternatively, if Figure 2 , Figure 5 and Figure 6 As shown, the first rotation axis 101 and the third rotation axis 103 intersect at the second point P2, the second rotation axis 102 and the fourth rotation axis 104 intersect at the third point P3, and any two of the first point P1, the second point P2, the third point P3 and the center P4 of the first ball head do not coincide with each other. Since any two of the first point P1, the second point P2, the third point P3 and the center P4 of the first ball head do not coincide with each other, it is helpful to reduce the difficulty of processing and assembling the hinge device.

[0082] like Figure 2 , Figure 5 and Figure 6 As shown, the first distance between the end surface of the first rotating block 21 close to the first point P1 and the second point P2 can be equal to the second distance between the end surface of the second rotating block 31 close to the first point P1 and the third point P3; the third distance between the second point P2 and the center P4 of the first ball head can be equal to the fourth distance between the third point P3 and the center P4 of the first ball head. Figure 5 and Figure 6 , the movement of the first rotating block 21, the second rotating block 31, the connecting arm 40 and the part of the swing arm 50 connected between the second point P2 and the center P4 of the first ball head can be simplified to the movement of multiple connecting rods.

[0083] See also Figure 5 At this time, the swing arm 50 is in the position where the door is closed. During the process of opening the door, the swing arm 50 can be driven by, for example, a door support rod to make the swing arm 50 rotate upward around the second point P2. At the same time, the first rotating block 21 rotates around Figure 5 At the same time, the swing arm 50 drives the connecting arm 40 to rotate upward and outward (along the Y direction) around the center P4 of the first ball head through the first ball head pair, and the connecting arm 40 can be transferred upward around the third point P3, while driving the second rotating block 31 to rotate around Figure 5 Point B in the figure swings to the upper right until it reaches Figure 6In other words, the first rotating block and the second rotating block can respectively rotate in opposite directions at a constant speed around the first rotating axis 101 and the second rotating axis 102, and the swing arm 50 and the connecting arm 40 can respectively perform a constant speed symmetrical spatial motion.

[0084] exist Figure 5 and Figure 6 , 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 It is a plan view diagram, which only schematically shows the changes of various points and various connecting rods in the XZ plane (i.e., the plane defined by the X direction and the Z direction) from the door being in a closed position to the door being in an open position, and does not show the changes of various points and various connecting rods in the YZ plane (i.e., the plane defined by the Y direction and the Z direction) from the door being in a closed position to the door being in an open position.

[0086] As mentioned above, in the present disclosure, the rotation axes corresponding to the various rotating parts 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 spatial four-bar linkage in the prior art that requires the intersection at one point, the multi-point solution provided by the present application is conducive to reducing the difficulty of processing and assembly.

[0087] See also 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 direction and the Z direction), the angle between the first rotation axis 101 and the second rotation axis 102 is the first angle γ, the angle between the first rotation axis 101 and the third rotation axis 103 is the second angle α; the angle between the second rotation axis 102 and the fourth rotation axis 104 is the third angle β, and the first angle γ, the second angle α, and the third angle β are all acute angles. The angle of the first angle γ, the angle of the second angle α, and the third angle β are set to remain constant during the swinging process of the swing arm 50, for example, see Figure 1 and 2 After the first rotating block 21 and the second rotating block 31 are installed on the mounting base 10, the angle 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 remain unchanged. The angle of the first 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 angle α and the third angle β are used to limit the outward swing angle of the swing arm 50 in the Y direction.

[0088] When the first rotating block 21 rotates around the first rotating axis 101, the swing arm 50 rotates along with the first rotating block 21, and at the same time, the swing arm 50 rotates upward around the third rotating axis 103 to realize the upward rotation of the door. When the swing arm 50 rotates upward, it rotates outward in the Y direction around the center P4 of the first ball head, thereby realizing the upward swing of the door in the Y direction and the Z direction at the same time.

[0089] The present disclosure does not limit the specific shapes of the swing arm 50 and the door motion trajectory. Figure 7 In one embodiment of the present disclosure, in the space coordinates defined by the X direction, the Y direction, and the Z direction, the motion trajectory of the swing arm 50 during the door opening or closing process is a cosine curve. That is, the swing arm 50 presents an arc-shaped motion trajectory in the space coordinates defined by the X direction, the Y direction, and the Z direction.

[0090] The present disclosure does not limit the lateral opening angle and the upward opening angle of the vehicle door. Optionally, in one embodiment of the present disclosure, the swing arm 50 is configured so that, during the process of the vehicle door switching from a closed state to a fully open state, the swing arm 50 rotates outwardly around the first rotation axis 101 in the XY plane (i.e., the plane defined by the X direction and the Y direction) at an angle less than or equal to 45°, and the swing arm 50 rotates upward around the third rotation axis 103 in the YZ plane (i.e., the plane defined by the Y direction and the Z direction) at an angle less than or equal to 50°.

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

[0092] Optionally, a second mounting hole (not shown) is further provided on the connecting arm 40, and a second rotating shaft 311 is provided on the second rotating block 31. 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 understandable that in other embodiments of the present disclosure, mounting holes may be provided on the first rotating block 21 and the second rotating block 31 , and rotating shafts cooperating with the mounting holes may be provided on the swing arm 50 and the connecting arm 40 .

[0094] In the present disclosure, the first rotating block 21 and the second rotating block 31 can be installed on the mounting base 10 using any appropriate structure. Figure 1 and Figure 2 As shown, in one embodiment of the present disclosure, the hinge device 100 also includes a first mounting bracket and a second mounting bracket, the first mounting bracket includes a pair of first lugs 12, and the pair of first lugs 12 are arranged at intervals on the mounting base 10, and the two ends of the first rotating block 21 are respectively rotatably mounted on the corresponding first lugs 12 around the first rotation axis 101. For example, the two ends of the first rotating block 21 are respectively rotatably mounted on the corresponding first lugs 12 through a third rotating shaft, and the axis of the third rotating shaft is the first rotation axis 101. The second mounting bracket includes a pair of second lugs 13, and the pair of second lugs 13 are arranged at intervals on the mounting base 10, and the two ends of the second rotating block 31 are respectively rotatably mounted on the corresponding second lugs 13 around the second rotation axis 102. For example, the two ends of the second rotating block 31 are respectively rotatably mounted on the corresponding second lugs 13 through a fourth rotating shaft, and here, the axis of the fourth rotating shaft is the second rotation axis 102.

[0095] Optionally, in the present 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 the present disclosure, the first mounting bracket and the second mounting bracket may be integrally formed with the mounting base 10 .

[0097] In order to facilitate driving the door to rotate around the hinge device 100, as shown in FIG. Figure 1 As shown, at least one ball pin 70 may be provided on the swing arm 50, and the ball pin 70 is used to be connected to one end of a door stay (not shown) so as to rotate around the hinge device 100 under the action of an electric spring, a pneumatic spring or a balance spring. Optionally, the door stay may include an electric spring, a pneumatic spring or a balance spring type stay. When installed, the other end of the door stay may be mounted on the vehicle body. The specific structure and working principle of the door stay are well known to those skilled in the art and will not be described in detail here.

[0098] Alternatively, if Figure 1 As shown, there are two ball pins 70 , and the two ball pins 70 are respectively connected to a door stay in an articulated manner.

[0099] In this disclosure, Figures 1 to 4 As shown, the swing arm 50 may include a first portion 51 and a second portion 52 , wherein the first portion 51 may be connected to the first connection block connecting arm 40 , and the second portion 52 may be connected to the vehicle door.

[0100] According to another aspect of the present disclosure, a vehicle door assembly is provided, which includes a vehicle door and the above-mentioned hinge device 100. During installation, the swing arm 50 of the hinge device can be connected to the vehicle door (such as by screwing, etc.).

[0101] According to another aspect of the present disclosure, a vehicle is provided, which includes a vehicle body and the above-mentioned door assembly, wherein the mounting base 10 of the hinge device 100 is connected to the vehicle body so that the door can be hinged to the vehicle body through the hinge device 100 .

[0102] The vehicle may further include a door stay for driving the swing arm 50 to move, the door stay being hinged to a ball stud 70 on the swing arm 50 .

[0103] In the present disclosure, the hinge device 100 can be designed as a symmetrical double-crank five-bar mechanism, and the production accuracy and assembly are easy to achieve. The following briefly introduces the working principle and process of the hinge device 100 in the door opening according to the accompanying drawings.

[0104] The door is closed as shown in the attached 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 door needs to be opened, the force can be applied to the points where the two ball pins 70 are located through the telescopic action of the door support rod, so that the swing arm 50 moves in space. Specifically, the swing arm 50 is made to move around the third rotation axis 103 and the center P4 of the first ball head to make a combined trajectory movement of the door opening to the side and the door opening upward. Due to the movement of the swing arm 50, the first rotating block 21 is driven to make a fixed-axis rotation movement around the first rotation axis 101. Based on the symmetrical design, under the action of the swing arm 50, the connecting arm 40 simultaneously moves in space, that is, the connecting arm 40 simultaneously moves around the fourth rotation axis 104, the center P4 of the first ball head and the swing third rotation axis 103 to make a combined trajectory movement of the door opening to the side and the door rotating upward. At the same time, due to the movement of the connecting arm 40, the second rotating block 31 is driven to make a fixed-axis rotation movement around the second rotation axis 102.

[0105] When the first rotating block 21 rotates to 45° around the first rotating axis 101, the swing arm 50 drives the door to rotate upward to about 50° around the third rotating axis at the same time, and the door opening action is completed. At this time, the swing arm 50 and the door (not shown) are in the following state. Figure 7 The fully open position is shown. The action of closing the door is the opposite of opening the door, so it will not be described here.

[0106] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present 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, the present disclosure will not further describe various possible combinations.

[0108] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present 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, and the first end of the swing arm is connected to the connecting arm through a first ball head structure, and the second end of the connecting arm is rotatably connected to the second rotating structure.

2. The hinge device according to claim 1, characterized in that: The first rotating structure is rotatably connected to the mounting base around a first rotating axis; The second rotating structure is rotatably connected to the mounting base around a second rotating axis; The first rotation axis is arranged symmetrically to the second rotation axis.

3. The hinge device according to claim 2, 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 constructed to be symmetrically arranged about a first normal plane, the first normal plane is a normal plane of the first surface of the mounting base facing the swing arm, and a line connecting the first point and the center of the first ball head is located in the normal plane.

4. The hinge device according to claim 3, characterized in that: The first rotating structure and the second rotating structure are configured to be symmetrically arranged with respect to the first normal plane.

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

6. The hinge device according to claim 1, characterized in that: A rotating pair is used to connect 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.

7. 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; A first spherical groove and an opening connected to the first spherical groove are provided in the first connecting seat, the first spherical groove and the first ball head are constructed as the first ball head structure, the first section of the connecting arm connected to the first ball head is passed through the opening; or, the part where the swing arm is connected to the first ball head is passed through the opening.

8. The hinge device according to claim 7, 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 surface where the opening is located, so that when the first ball head rotates in the first spherical groove, the first section can move in the guide groove.

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

10. The hinge device according to any one of claims 1 to 9, characterized in that: The first rotating structure comprises a first rotating block, and the first rotating block is rotatably connected to the mounting base around a first rotating axis; The second rotating structure comprises a second rotating block, and the second rotating block is rotatably connected to the mounting base around a second rotating axis; The swing arm is rotatably connected to the first rotating block around a third rotating axis, and the second end of the connecting arm is rotatably connected to the second rotating block around a fourth rotating axis.

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

12. The hinge device according to claim 11, characterized in that: The first rotation axis intersects with the third rotation axis at a second point, the second rotation axis intersects with the fourth rotation axis at a third point, and any two of the first point, the second point, the third point and the center point of the first ball head do not coincide.

13. The hinge device according to claim 12, characterized in that: A first distance between an end surface of the first rotating block close to the first point and the second point is equal to a second distance between an end surface of the second rotating block close to the first point and the third point.

14. The hinge device according to claim 12, characterized in that: A third distance between the second point and the center of the first ball head is equal to a fourth distance between the third point and the center of the first ball head.

15. The hinge device according to claim 10, 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 angle, the angle between the first rotation axis and the third rotation axis is the second angle; the angle between the second rotation axis and the fourth rotation axis is the third angle; the angle of the first angle, the angle of the second angle and the third angle are set to remain constant during the swing of the swing arm.

16. The hinge device according to claim 10, characterized in that: 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, The connecting arm is also provided with a second mounting hole, the second rotating block is provided with a second rotating shaft, and the second rotating shaft is inserted into the second mounting hole around a fourth rotating axis.

17. The hinge device according to claim 10, characterized in that: The hinge device also includes a first mounting bracket and a second mounting bracket; The first mounting bracket comprises a pair of first lugs, the pair of first lugs are arranged on the mounting base at intervals, and two ends of the first rotating block are respectively rotatably mounted on the corresponding first lugs around the first rotating axis; The second mounting bracket includes a pair of second lugs, which are arranged on the mounting base at intervals, and two ends of the second rotating block are respectively rotatably mounted on the corresponding second lugs around the second rotating axis.

18. The hinge device according to any one of claims 1 to 9, characterized in that: The first rotating structure includes a second connecting seat and a second ball head, the second connecting seat is arranged on one of the mounting base and the swing arm, the second ball head is arranged on the other of the mounting base and the swing arm, a second spherical groove is arranged in the second connecting seat, and the second spherical groove and the second ball head are configured as a second ball head structure; The second rotating structure includes a third connecting seat and a third ball head, the third connecting seat is arranged on one of the mounting base and the connecting arm, the third ball head is arranged on the other of the mounting base and the connecting arm, a third spherical groove is arranged in the third connecting seat, and the third spherical groove and the third ball head are constructed as a third ball head structure.

19. The hinge device according to any one of claims 1 to 9, characterized in that: At least one ball pin is arranged on the swing arm, and the ball pin is used to be connected with one end of the door support rod.

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

21. A vehicle, characterized in that: The invention comprises a vehicle body and a vehicle door assembly according to claim 20, wherein the mounting base is connected to the vehicle body.

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