Vehicle door hinge mechanism, vehicle door assembly and vehicle

Abstract

The utility model discloses a vehicle door hinge mechanism which is used for connecting a vehicle door and a vehicle body and comprises a first connecting rod and a second connecting rod, the first connecting rod is provided with a first connecting part and a second connecting part which are distributed at the two ends of the first connecting rod in the length direction, the first connecting part is suitable for being rotationally connected with the vehicle body, and the second connecting part is suitable for being rotationally connected with the vehicle door; the second connecting rod is provided with a first connecting end and a second connecting end distributed at the two ends of the second connecting rod in the length direction, the first connecting end is rotationally connected with the first connecting rod, the second connecting end is suitable for being movably connected with the automobile door, and the second connecting rod can drive the automobile door to rotate relative to the second connecting part. And the rotation axis directions of the first connecting part, the second connecting part and the first connecting end are parallel. The utility model further provides the vehicle door assembly and the vehicle with the same. The number of connecting components and occupied space can be reduced under the condition that the opening and closing stability of the vehicle door is not affected, and the light weight of the vehicle door structure can be achieved easily.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a door hinge mechanism, a door assembly and a vehicle. Background Art

[0002] As a new door opening method that can be effectively applied to ordinary four-door vehicles, the side-swing door swings outward to the vehicle body by using a connecting rod, which can drive the door to move outward in the vehicle width direction and move in a direction substantially parallel to the vehicle length direction, achieving an opening effect similar to that of a side-sliding door. However, there is no slideway setting, which will not occupy too much longitudinal space of the vehicle body, thus facilitating the opening and closing of the door in a narrow space and avoiding the occurrence of "door hitting".

[0003] The existing side-swing doors are mainly connected to the vehicle body through two main and auxiliary connecting rods to form a four-link structure. The four-link structure is complex and occupies a large space, which is not conducive to the lightweight of the vehicle body. Summary of the Utility Model

[0004] In view of the above problems, the embodiments of the present utility model provide a door hinge mechanism, a door assembly and a vehicle, which can achieve structural lightweight without affecting the opening and closing stability of the door.

[0005] According to one aspect of the embodiments of the present utility model, a door hinge mechanism for connecting a door and a vehicle body is provided, including: a first connecting rod having a first connecting portion and a second connecting portion distributed at both ends in the length direction of the first connecting rod, the first connecting portion being adapted to be rotatably connected to the vehicle body, and the second connecting portion being adapted to be rotatably connected to the door; and a second connecting rod having a first connecting end and a second connecting end distributed at both ends in the length direction of the second connecting rod, the first connecting end being rotatably connected to the first connecting rod, and the second connecting end being adapted to be movably connected to the door, the second connecting rod being configured to be able to drive the door to rotate relative to the second connecting portion; wherein, the rotation axis directions of the first connecting portion, the second connecting portion and the first connecting end are parallel.

[0006] In an exemplary embodiment of the present utility model, the second connecting end is adapted to be rotatably connected to the door, and the rotation axis direction of the second connecting end is parallel to that of the first connecting end; the second connecting rod is configured to be able to expand and contract along the length direction of the second connecting rod.

[0007] In an exemplary embodiment of the present utility model, the second connecting end is adapted to be slidably connected to the door, and the second connecting rod is configured to be able to rotate around the rotation axis direction of the first connecting end.

[0008] In an exemplary embodiment of the present utility model, it further includes: a driving device, which is adapted to be fixedly connected to the vehicle body, and the driving device is connected to the first link to drive the first link to rotate around the first connection part; and a controller, which is connected to the second link and / or the driving device to control the movement of the second link and / or the driving device.

[0009] In an exemplary embodiment of the present utility model, the second connection part has a first position and a second position relative to the first connection part. The first link can rotate around the first connection part so that the second connection part moves between the first position and the second position; a limiting member is circumferentially arranged on the rotation axis of the first connection part. When the second connection part is in the first position or the second position, the limiting member is adapted to abut against the vehicle body.

[0010] In an exemplary embodiment of the present utility model, it further includes a buffer member, which is arranged corresponding to the limiting member. When the second connection part is in the first position or the second position, the buffer member is adapted to be arranged between the limiting member and the vehicle body.

[0011] According to the second aspect of the embodiments of the present utility model, a door assembly is provided, which includes a door, a vehicle body, and the door hinge mechanism as described in any one of the above. The vehicle body has a first mounting seat for connecting the first connection part, the door has a second mounting seat for connecting the second connection part and the second connection end. The first connection part of the first link is rotatably connected to the first mounting seat, and the second connection part is rotatably connected to one end of the second mounting seat; the first link defines a first side and a second side facing away from each other, the first side faces the vehicle body, the second side faces the door, the second link is rotatably connected to the first link on the second side, and the second connection end is movably connected to the other end of the second mounting seat.

[0012] In an exemplary embodiment of the present utility model, the door has a closed position, an adjustment position, and an open position relative to the vehicle body. The first link can rotate around the first mounting seat to drive the door to sequentially move between the closed position, the adjustment position, and the open position, so that the door is closed relative to the vehicle body in the closed position and opened relative to the vehicle body in the open position; the second link is configured to drive the attitude of the door to be parallel to the vehicle length direction in the closed position, drive the side of the door away from the first connection part to deflect inward between the closed position and the adjustment position, and keep the attitude of the door parallel to the vehicle length direction between the adjustment position and the open position and in the open position.

[0013] In an exemplary embodiment of the present utility model, it further includes: an anti-collision member, which is arranged on the side of the door away from the first connection part; and an anti-collision ring, which is arranged corresponding to the anti-collision member on the vehicle body, and a receiving groove is defined in the middle of the anti-collision ring; wherein, when the door is in the closed position, the anti-collision member is inserted into the receiving groove and is circumferentially limited by the anti-collision ring; when the door is in the open position, the anti-collision member is separated from the anti-collision ring.

[0014] In an exemplary embodiment of the present utility model, a side wall of the receiving groove away from the vehicle body is an outer side wall, and the outer side wall is inclined outward from the end away from the anti-collision member to the end close to the anti-collision member.

[0015] According to the third aspect of the embodiments of the present utility model, a vehicle is provided, including the door assembly as described in any one of the above.

[0016] In the present utility model, both ends of the first link are rotatably connected between the vehicle body and the door, enabling the door to perform a side-swing movement relative to the vehicle body to achieve opening and closing of the door; one end of the second link is rotatably connected to the first link, and the other end is movably connected to the door. By controlling the movement of the second link, the rotation angle between the door and the first link is adjusted, thereby controlling the door attitude during the door opening and closing process; meanwhile, a triangular support is formed among the connection points of the door, the second link, and the first link, which can improve the structural stability during the door opening and closing process, and reduces the connection members and space occupation compared with the existing four-link structure, facilitating the realization of the lightweight of the door structure.

[0017] The above description is only an overview of the technical solutions of the embodiments of the present utility model. In order to be able to understand the technical means of the embodiments of the present utility model more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features, and advantages of the embodiments of the present utility model more obvious and understandable, the following specifically illustrates the specific embodiments of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0019] Figure 1 Shows a schematic structural diagram of the door assembly according to the embodiment of the present utility model when in the closed position;

[0020] Figure 2 Shows a schematic structural diagram of the first link according to the embodiment of the present utility model;

[0021] Figure 3 Shows an exploded view of the driving device and the first mounting seat according to the embodiment of the present utility model;

[0022] Figure 4 Shows a schematic structural diagram of the door assembly according to the embodiment of the present utility model when between the closed position and the adjusted position;

[0023] Figure 5 Shows a schematic structural view of the door assembly according to an embodiment of the present utility model when in the open position;

[0024] Figure 6 Shows a schematic view of the state of the door assembly according to an embodiment of the present utility model during the opening process.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1 - First connecting rod, 11 - First connecting portion, 111 - Bushing, 112 - Connecting spline, 12 - Second connecting portion, 13 - First side, 14 - Second side,

[0027] 2 - Second connecting rod, 21 - First connecting end, 22 - Second connecting end,

[0028] 3 - Driving device, 4 - Limiting member, 5 - Buffer member, 6 - Anti - collision member, 7 - Anti - collision ring, 71 - Receiving groove, 72 - Outer side wall,

[0029] 100 - Door hinge mechanism, 200 - Vehicle body, 201 - First mounting seat, 300 - Door, 301 - Second mounting seat,

[0030] N1 - Closed position, N2 - Adjustment position, N3 - Open position.

[0031] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0032] Now, example embodiments will be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this utility model will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art.

[0033] In addition, the described features, structures or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present utility model. However, those skilled in the art will realize that the technical solutions of the present utility model can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well - known methods, devices, implementations or operations are not shown or described in detail to avoid obscuring aspects of the present utility model.

[0034] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted here that the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0035] As Figure 1 shown, an embodiment of the present utility model provides a door hinge mechanism for connecting a door 300 to a vehicle body 200. The door hinge mechanism 100 includes a first link 1 and a second link 2. The first link 1 has a first connection portion 11 and a second connection portion 12 distributed at both ends in the length direction of the first link 1. The first connection portion 11 is adapted to be rotatably connected to the vehicle body 200, and the second connection portion 12 is adapted to be rotatably connected to the door 300. The first link 1 is used as a swing arm and rotatably connected between the vehicle body 200 and the door 300, enabling the door 300 to perform a side swing movement relative to the vehicle body 200, thereby realizing the opening and closing of the door 300. The second link 2 has a first connection end 21 and a second connection end 22 distributed at both ends in the length direction of the second link 2. The first connection end 21 is rotatably connected to the first link 1, and the second connection end 22 is adapted to be movably connected to the door 300. After connecting the second connection end 22 to the door 300, the rotational axis directions of the first connection portion 11, the second connection portion 12, and the first connection end 21 are all parallel to the vehicle height direction. The first connection end 21, the second connection end 22, and the second connection portion 12 form a triangular support in the rotation plane, which can effectively improve the structural stability during the opening and closing process of the door 300. Moreover, the second link 2 is configured to be able to drive the door 300 to rotate relative to the second connection portion 12. By controlling the movement of the second link 2, the rotation angle between the door 300 and the first link 1 can be adjusted, thereby controlling the attitude of the door 300 during the opening and closing process of the door 300 and realizing the smooth operation of the opening and closing actions of the door 300. At the same time, the above-mentioned door hinge mechanism 100 reduces the connecting members and space occupation compared with the existing four-link structure, which is beneficial to the realization of the lightweight of the door 300 structure and the addition of intelligent components to the door 300.

[0036] In some embodiments, as Figures 1 to 3 shown, the second connection end 22 can be rotatably connected to the door 300, and the rotational axis direction of the second connection end 22 is parallel to the first connection end 21. The second link 2 is configured to be able to expand and contract along the length direction of the second link 2. In this way, by controlling the expansion and contraction length of the second link 2, the door 300 can be driven to rotate relative to the second connection portion 12, and the rotation angle between the door 300 and the first link 1 can be adjusted, thereby controlling the attitude of the door 300 during the opening and closing process of the door 300 and realizing the smooth operation of the opening and closing actions of the door 300.

[0037] For example, in this embodiment, the first link 1 can be a connecting rod made of a material with high structural strength. The first connecting portion 11 and the second connecting portion 12 at both ends of the first link 1 are respectively formed as hollow rotating shaft members with axes parallel to the vehicle height direction, and are respectively rotatably connected to corresponding connecting members on the vehicle door 300 and the vehicle body 200 through, such as a bushing 111 and a connecting spline 112, etc.; the second link 2 can be an electric strut, and both ends thereof can be rotatably connected between the first link 1 and the vehicle door 300 through rotating shaft connectors such as a ball head shaft and a shaft sleeve, etc., and drives the vehicle door 300 to rotate relative to the second connecting portion 12 by telescoping along its own length direction, so as to adjust the rotation angle between the vehicle door 300 and the first link 1, and further control the attitude of the vehicle door 300 relative to the vehicle body 200 during the opening and closing process of the vehicle door 300. For example, the attitude of the vehicle door 300 is maintained parallel to the vehicle length direction, etc., to achieve smooth opening and closing of the vehicle door 300.

[0038] It can be understood that in other embodiments, the second link 2 can also be a hydraulic rod, a cylinder or a telescopic lead screw, etc., as long as it can telescope along its own length direction to drive the vehicle door 300 to rotate relative to the second connecting portion 12; the length change of the second link 2 can be used to simulate the motion model of the vehicle door 300 according to the position of the vehicle door 300 to obtain the length relationship change curve between the second link 2 and the opening degree of the vehicle door 300, and then the length control of the second link 2 can be realized. This is the prior art and will not be elaborated here; both ends of the second link 2 can be rotatably connected between the first link 1 and the vehicle door 300 through a ball head structure, reducing the stress and resistance during rotation, and improving the flexibility, stability and durability of the movement of the vehicle door 300.

[0039] In some embodiments, the second connection end 22 can also be slidably connected to the vehicle door 300, and the second link 2 is configured to be able to rotate around the rotation axis direction of the first connection end 21. In this way, the rotation of the second link 2 can be controlled to drive the vehicle door 300 to rotate relative to the second connecting portion 12, and the rotation angle between the vehicle door 300 and the first link 1 can be adjusted by controlling the rotation direction and rotation angle of the second link 2, so as to control the attitude of the vehicle door 300 during the opening and closing process of the vehicle door 300 and achieve smooth operation of the opening and closing action of the vehicle door 300.

[0040] For example, the configuration of the first link 1 is the same as described above and will not be elaborated here; the second link 2 can be a connecting rod made of a material with high structural strength. Its first connecting end 21 can be rotatably connected to the first link 1 through a driving motor and a rotating shaft connecting member. Its second connecting end 22 can be rotatably connected to a slider and is slidably connected to a chute correspondingly arranged on the vehicle door 300 through the slider. By controlling the rotation of the second link 2 around the first connecting end 21, the vehicle door 300 is driven to rotate relative to the second connecting portion 12, so as to adjust the rotation angle between the vehicle door 300 and the first link 1. Furthermore, during the opening and closing process of the vehicle door 300, the attitude of the vehicle door 300 relative to the vehicle body 200 is controlled. For example, the attitude of the vehicle door 300 is maintained parallel to the vehicle length direction, etc., to achieve the smooth opening and closing of the vehicle door 300.

[0041] In some embodiments, as Figure 1 and Figure 3 shown, the vehicle door hinge mechanism 100 further includes a driving device 3. The driving device 3 can be a driving motor. The driving device 3 is adapted to be fixedly connected to the vehicle body 200, and the driving device 3 is connected to the first link 1. The connection method can be that the driving shaft of the driving motor is coaxially driven and connected to the first connecting portion 11 of the first link 1 to drive the first link 1 to rotate around the first connecting portion 11, and then drive the vehicle door 300 to perform a side swing movement relative to the vehicle body 200, so as to realize the opening and closing of the vehicle door 300. In this way, through the setting of the driving device 3, the automatic opening and closing of the vehicle door 300 can be realized, and the intelligence and stability of the movement of the vehicle door 300 are improved.

[0042] It can be understood that by putting the driving device 3 into the movement model of the vehicle door 300 with the second link 2, a movement model of the vehicle door 300 system integrating the second link 2 and the driving device 3 can be obtained. Furthermore, a relationship curve between the length change of the second link 2 and the movement change of the driving device 3 can be obtained. This curve can be used to control the movement of the vehicle door 300 to realize the coordinated action of the second link 2 and the driving device 3. This is the prior art and will not be elaborated here.

[0043] Furthermore, in some embodiments, the vehicle door hinge mechanism 100 further includes a controller (not shown in the figure). The controller can be electrically connected to the second link 2 and / or the driving device 3 to control the movement of the second link 2 and / or the driving device 3. Among them, the control of the second link 2 by the controller includes controlling the telescopic length of the second link 2 or controlling the rotation angle of the second link 2 at the first connecting end 21. By controlling the coordinated action of the second link 2 and the driving device 3 through the controller, it is convenient to control the movement amount and action timing of the second link 2, and the accuracy and stability of the spatial attitude control of the vehicle door 300 are improved.

[0044] It can be understood that the above-mentioned controller can be an independent MCU micro-control unit, or can be connected to the vehicle head unit system or the vehicle controller. The controller can obtain the position information of the second link 2 and the motor of the driving device 3 in real time through the hall sensor, and then control the coordinated actions of the second link 2 and the driving device 3. The specific control logic is the prior art and will not be elaborated here.

[0045] In some embodiments, such as Figure 1 , Figure 5 and Figure 6 shown, the second connecting portion 12 has a first position and a second position relative to the first connecting portion 11. The first link 1 can rotate around the first connecting portion 11 so that the second connecting portion 12 moves between the first position and the second position; after the first link 1 and the second link 2 are installed between the vehicle door 300 and the vehicle body 200, as Figure 1 shown, when the second connecting portion 12 is in the first position, that is, the vehicle door 300 is in the closed position relative to the vehicle body 200, the vehicle door 300 is closed relative to the vehicle body 200; as Figure 5 shown, when the second connecting portion 12 is in the second position, that is, the vehicle door 300 is in the open position relative to the vehicle body 200, the vehicle door 300 is fully opened relative to the vehicle body 200; a limiting member 4 is circumferentially provided on the rotation axis of the first connecting portion 11. When the second connecting portion 12 is in the first position or the second position, the limiting member 4 is adapted to abut against the vehicle body 200. In this way, the rotation range of the first link 1 can be limited by the limiting member 4 to prevent the vehicle door 300 from being over-closed or over-opened.

[0046] It can be understood that the shape, material, and specific setting orientation of the above-mentioned limiting member 4 relative to the first connecting portion 11 can be selected and designed according to specific requirements such as the opening degree of the vehicle door 300, and are not limited here, as long as it can satisfy that when the second connecting portion 12 is in the first position or the second position, the limiting member 4 abuts against the vehicle body 200 to limit the rotation range of the first link 1.

[0047] In some embodiments, such as Figure 3 shown, the vehicle door hinge mechanism 100 further includes a buffer member 5. The buffer member 5 can be made of rubber. The buffer member 5 is provided corresponding to the limiting member 4. When the second connecting portion 12 is in the first position or the second position, the buffer member 5 is adapted to be disposed between the limiting member 4 and the vehicle body 200. In this way, the buffer member 5 can achieve shock absorption between the limiting member 4 and the vehicle body 200, and buffer and protect the contact part between the two, reduce wear and improve its service life.

[0048] It can be understood that the above buffer member 5 can be wrapped around the limiting member 4 or fixed to the vehicle body 200 by means of adhesion. The shape, specific installation position, etc. of the buffer member 5 can be selected and designed according to specific requirements, and are not limited herein, as long as it can be applied between the limiting member 4 and the vehicle body 200 to achieve buffering and shock absorption when the two come into contact.

[0049] In addition, as Figures 1 to 5 shown, another embodiment of the present utility model further provides a door assembly, including a door 300, a vehicle body 200, and the above-mentioned door hinge mechanism 100. The vehicle body 200 has a first mounting seat 201 for connecting the first connecting portion 11, and the door 300 has a second mounting seat 301 for connecting the second connecting portion 12 and the second connecting end 22; wherein, the first connecting portion 11 of the first link 1 is rotatably connected to the first mounting seat 201, and the second connecting portion 12 is rotatably connected to one end of the second mounting seat 301; the first link 1 defines opposite first and second sides 13 and 14, the first side 13 faces the vehicle body 200, the second side 14 faces the door 300, the second link 2 is rotatably connected to the first link 1 on the second side 14, and the second connecting end 22 of the second link 2 is movably connected to the other end of the second mounting seat 301 according to the foregoing connection method. In this way, the door hinge mechanism 100 can be blocked by the door 300 and hidden between the door 300 and the vehicle body 200 in the fully open state of the door 300. On the one hand, it can reduce its volume exposed to the external space, which is beneficial to aesthetics. On the other hand, it can also prevent the door hinge mechanism 100 from being stepped on by passengers, improve its service life and reduce the design of the anti-step structure, which is beneficial to the lightweight of the door 300.

[0050] It can be understood that in order to improve the door tightness and safety factor of some vehicle models, the front door and the rear door in the closed state are respectively configured such that the front end portion of the rear door is more located inside in the vehicle width direction than the rear end portion of the front door. In this way, when viewed from the side in the vehicle width direction, the front end portion of the rear door overlaps with the rear end portion of the front door or the vehicle body B-pillar. Based on this structure, the conventional side-swing door 300 cannot be opened independently and needs to be opened in a certain order, such as opening the front door first to achieve the opening of the rear door. Therefore, in some embodiments, as Figure 1 、 Figures 4 to 6As shown, the vehicle door 300 has a closed position N1, an adjustment position N2, and an open position N3 relative to the vehicle body 200. By manually or driving the first link 1 to rotate around the first mounting seat 201, the vehicle door 300 can be driven to move sequentially between the closed position N1, the adjustment position N2, and the open position N3, and the vehicle door 300 is closed relative to the vehicle body 200 at the closed position N1 and opened relative to the vehicle body 200 at the open position N3. At the same time, the second link 2 is configured to drive the attitude of the vehicle door 300 to be parallel to the vehicle length direction at the closed position N1, so that the vehicle door 300 is effectively closed with the vehicle body 200 at the closed position N1, ensuring the airtightness when the vehicle door 300 is closed. When between the closed position N1 and the adjustment position N2, the second link 2 drives the side of the vehicle door 300 away from the first connection portion 11, such as the front end of the rear door, to deflect inward, so that the front end of the rear door can avoid the rear end of the front door or the vehicle body B-pillar when the rear door is opened or closed, preventing interference between the rear door and the front door or vehicle body 200 components such as the B-pillar and ensuring the independent opening and closing of the rear door. Further, the second link 2 can also be configured to drive the attitude of the vehicle door 300 to be parallel to the vehicle length direction between the adjustment position N2 and the open position N3 and at the open position N3, so as to maintain the smooth movement of the vehicle door 300 during the opening and closing process and prevent it from colliding with or interfering with the vehicle body 200.

[0051] For example, as Figure 1 , Figures 4 to 6 shown, the vehicle door hinge mechanism 100 is applied to the rear door. Among them, the line segment AB is the first link 1, point A is the first connection portion 11 rotatably connected to the vehicle body 200, and point B is the second connection portion 12 rotatably connected to the rear door; the line segment CD is the second link 2, point C is the first connection end 21 rotatably connected to the first link 1, and point D is the second connection end 22 rotatably connected to the rear door; the line segment EF is the rear door, point E is the front end of the rear door, point N1 is a point at the position of the gap between the rear end of the front door or the vehicle body B-pillar, which is also the closed position N1. When the rear door is at the closed position N1, point E coincides with point N1; point N2 is the adjustment position N2. When the rear door is at the adjustment position N2, point E coincides with point N2; point N3 is the open position N3. When the vehicle door 300 is at the closed position N1, the position of the line segment AB needs to be in the counterclockwise direction of the BN connection line in the figure or just on the BN connection line, so as to ensure that point E can swing backward, i.e., in the positive X direction, during the opening process of the rear door and can avoid the front door during the swing opening process in the positive x direction, realizing the independent opening and closing of the rear door.

[0052] During the opening process of the rear door, the first connecting rod 1, i.e., line segment AB, is driven manually or by the driving device 3 to rotate around the first mounting seat 201, i.e., point A, to drive the rear door, i.e., line segment EF, to swing open in the rear direction of the vehicle, i.e., in the positive X direction. At the same time, the second connecting rod 2, i.e., line segment CD, is extended to drive the rear door, i.e., line segment EF, to deflect inwardly. At this time, the front end of the rear door, i.e., point E, deflects inwardly and the rear end, i.e., point F, tilts outwardly, so that when the rear door, i.e., line segment EF, swings open in the rear direction of the vehicle, i.e., in the positive X direction, the front end of the rear door, i.e., point E, can avoid the rear end of the front door or the B-pillar of the vehicle body, i.e., point N1. The next stage of the opening of the rear door , the rear door, i.e., line segment EF, driven by the first link 1, i.e., line segment AB, continues to move to the rear direction of the vehicle, i.e., the positive X direction, to the adjustment position N2, i.e., N2, and the second link 2, i.e., line segment CD, adjusts the telescopic length, driving the rear door, i.e., line segment EF, to restore the horizontal posture, i.e., parallel to the length direction of the vehicle; in the final opening stage, the rear door, i.e., line segment EF, continues to rotate and open driven by the first link 1, i.e., line segment AB, and at the same time, driven by the second link 2, i.e., line segment CD, always maintains a horizontal posture, and the rear door, i.e., line segment EF, moves smoothly along the trajectory of the arc N1-N2-N3, realizing the independent and stable opening of the rear door. Similarly, the closing process of the rear door is the reverse process of the above-mentioned opening process of the rear door, which will not be repeated here.

[0053] It is understandable that in other embodiments, a certain amount of movable space can be reserved in the closed position N1, so that the rear door can be in the closed position N1 by adjusting the telescopic length of the second connecting rod 2 to make the front end of the rear door deflect inward and the rear end tilt outward, and then drive the first connecting rod 1 to rotate around the first mounting seat 201. The front end of the rear door can also avoid the rear end of the front door or the B-pillar of the vehicle body, thereby realizing independent opening and closing of the rear door.

[0054] It can also be understood that the above-mentioned control method is mainly described as being performed when the second link 2 is rotatably connected to the vehicle door 300 using a telescopic structure, while the control method when the second link 2 is slidably connected to the vehicle door 300 can replace the adjustment of the telescopic length of the second link 2 with the adjustment of the rotation angle of the second link 2 around the first connection end 21. The rest of the control logic is roughly the same as the aforementioned control logic and will not be repeated here.

[0055] In some embodiments, Figure 1 , Figure 4 and Figure 5As shown, the door assembly further includes a collision prevention member 6 and a collision prevention ring 7. The collision prevention member 6 is disposed on a side of the door 300 away from the first connection portion 11; the collision prevention ring 7 is disposed on the vehicle body 200 corresponding to the collision prevention member 6, and a receiving groove 71 is defined in the middle of the collision prevention ring 7. When the door 300 is in the closed position, the collision prevention member 6 is inserted into the receiving groove 71 and is circumferentially limited by the collision prevention ring 7; when the door 300 is in the open position, the collision prevention member 6 is separated from the collision prevention ring 7. Through the cooperation of the collision prevention member 6 and the collision prevention ring 7, the collision performance can be optimized. When a vehicle collision occurs, the collision prevention ring 7 circumferentially limits the collision prevention member 6 to limit the displacement of the door 300 in the vehicle length direction and the vehicle width direction, thereby reducing the failure probability of the door hinge mechanism 100 after collision deformation.

[0056] Further, as Figure 1 and Figure 4 shown, a side wall of the receiving groove 71 away from the vehicle body 200 is an outer side wall 72, and the outer side wall 72 is inclined outward from an end away from the collision prevention member 6 to an end close to the collision prevention member 6. In this way, after the door 300 is completely closed, the distal end of the collision prevention member 6 can be effectively limited by an end of the collision prevention ring 7 away from the collision prevention member 6. Without affecting the limiting function of the collision prevention member 6 and the collision prevention ring 7, the movement tolerance of the collision prevention member 6 in the receiving groove 71 can be improved, and interference with the collision prevention ring 7 can be avoided when the second link 2 drives the rear door to make a deflection and avoidance movement.

[0057] In addition, another embodiment of the present invention further provides a vehicle including the door assembly of any of the above embodiments. For other structures and working principles of the door assembly, please refer to the above description of the embodiments of the door assembly. Since the door assembly has the above technical effects, the vehicle having the door assembly should also have corresponding technical effects, which will not be elaborated here.

[0058] It can also be understood that for other structures and working principles of the door hinge mechanism in the above door assembly, please refer to the above description of the embodiments of the door hinge mechanism. Since the door hinge mechanism has the above technical effects, the vehicle having the door hinge mechanism should also have corresponding technical effects, which will not be elaborated here.

[0059] In the present invention, unless otherwise clearly specified and limited, terms such as "assembly" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined. Also, descriptions such as "some embodiments" and "exemplarily" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model.

[0061] The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] Although the embodiments of the present utility model have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model. Therefore, any changes or modifications made in accordance with the claims and the description of the present utility model shall fall within the scope covered by the patent of the present utility model.

Claims

1. A door hinge mechanism for connecting a vehicle door to a vehicle body, characterized in that, Comprising: A first link, the first link having a first connection portion and a second connection portion distributed at both ends in the length direction of the first link, the first connection portion being adapted to be rotatably connected to the vehicle body, and the second connection portion being adapted to be rotatably connected to the vehicle door; And A second link, the second link having a first connection end and a second connection end distributed at both ends in the length direction of the second link, the first connection end being rotatably connected to the first link, and the second connection end being adapted to be movably connected to the vehicle door, the second link being configured to be able to drive the vehicle door to rotate relative to the second connection portion; Wherein, the rotation axis directions of the first connection portion, the second connection portion and the first connection end are parallel.

2. The door hinge mechanism according to claim 1, characterized in that The second connection end is adapted to be rotatably connected to the vehicle door, and the rotation axis direction of the second connection end is parallel to that of the first connection end; the second link is configured to be able to expand and contract along the length direction of the second link.

3. The door hinge mechanism according to claim 1, characterized in that, The second connection end is adapted to be slidably connected to the vehicle door, and the second link is configured to be able to rotate around the rotation axis direction of the first connection end.

4. A door hinge mechanism according to any one of claims 1-3, characterized in that Further comprising: A driving device, the driving device being adapted to be fixedly connected to the vehicle body, and the driving device being connected to the first link to drive the first link to rotate around the first connection portion; And A controller, the controller being connected to the second link and / or the driving device to control the movement of the second link and / or the driving device.

5. The door hinge mechanism according to claim 4, characterized in that, The second connection portion has a first position and a second position relative to the first connection portion, and the first link can rotate around the first connection portion so that the second connection portion moves between the first position and the second position; a limiting member is circumferentially arranged on the rotation axis of the first connection portion, and when the second connection portion is in the first position or the second position, the limiting member is adapted to abut against the vehicle body.

6. The door hinge mechanism according to claim 5, characterized in that, Further comprising a buffer member, the buffer member being arranged corresponding to the limiting member, and when the second connection portion is in the first position or the second position, the buffer member is adapted to be arranged between the limiting member and the vehicle body.

7. A car door assembly, characterized in that, Comprising a vehicle door, a vehicle body and the vehicle door hinge mechanism according to any one of claims 1-6, the vehicle body having a first mounting seat for connecting the first connection portion, the vehicle door having a second mounting seat for connecting the second connection portion and the second connection end, the first connection portion of the first link being rotatably connected to the first mounting seat, and the second connection portion being rotatably connected to one end of the second mounting seat; the first link defines an opposite first side and a second side, the first side facing the vehicle body, the second side facing the vehicle door, the second link being rotatably connected to the first link on the second side, and the second connection end being movably connected to the other end of the second mounting seat.

8. The door assembly according to claim 7, wherein, The vehicle door has a closed position, an adjustment position, and an open position relative to the vehicle body. The first link can rotate around the first mounting seat to drive the vehicle door to sequentially move between the closed position, the adjustment position, and the open position, so that the vehicle door is closed relative to the vehicle body at the closed position and opened relative to the vehicle body at the open position. The second link is configured to keep the attitude of the vehicle door parallel to the vehicle length direction at the closed position, drive the side of the vehicle door away from the first connection portion to deflect inwardly between the closed position and the adjustment position, and keep the attitude of the vehicle door parallel to the vehicle length direction between the adjustment position and the open position and at the open position.

9. The door assembly according to claim 8, wherein, Further comprising: a collision prevention member disposed on the side of the vehicle door away from the first connection portion; and a collision prevention ring corresponding to the collision prevention member and disposed on the vehicle body. A receiving groove is defined in the middle of the collision prevention ring. Wherein, when the vehicle door is in the closed position, the collision prevention member is inserted into the receiving groove and circumferentially limited by the collision prevention ring; when the vehicle door is in the open position, the collision prevention member is separated from the collision prevention ring.

10. A vehicle, characterized in that, A vehicle door assembly according to any one of claims 6-9 is included.

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