Door hinge assembly and vehicle

Abstract

This invention discloses a car door hinge assembly and a vehicle, relating to the field of vehicle manufacturing technology. The car door hinge assembly includes: a first mounting member and a second mounting member, the first mounting member being connected to the vehicle body and the second mounting member being connected to the car door; and a drive mechanism, the drive mechanism including a drive member and a transmission assembly, the transmission assembly being mounted on the first mounting member, and the drive member being poweredly connected to the second mounting member through the transmission assembly to drive the second mounting member to move in two directions relative to the first mounting member. According to the car door hinge assembly of this invention, the car door can open obliquely upwards, with a simple structure, convenient installation and disassembly, high compactness, small space occupation, and easy arrangement and installation on the vehicle body. Furthermore, the transmission assembly has high transmission efficiency and good transmission stability, making the car door opening and closing process more stable and reliable, resulting in a better user experience.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and more particularly to a door hinge assembly and a vehicle having the door hinge assembly. Background Technology

[0002] Scissor doors allow the car door to open vertically upwards, enabling it to be opened in narrow spaces. They have a unique design. Early scissor doors mostly required manual opening. Generally, the door had to be opened to its maximum outwards first, and then flipped upwards to open to its maximum position. The closing action was the opposite. Opening or closing the door required two steps, and each step allowed the door to open or close in only one direction.

[0003] Current scissor doors can automatically open diagonally upwards, meaning they open outwards and upwards simultaneously. However, most existing scissor doors rely on multi-link mechanisms to open and close the doors, with multiple axes intersecting at one or two points. This requires extremely high manufacturing and assembly precision; otherwise, problems such as sluggish movement or jamming can easily occur. Furthermore, the complex structure, numerous parts, and large space requirements impose many restrictions and constraints on the side panel layout of the vehicle body, making design and layout difficult and hindering system structure adjustments and rapid adaptation. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a door hinge assembly that enables the door to open obliquely upwards. The assembly has a simple structure, is easy to install and disassemble, is highly compact, occupies little space, and is easy to arrange and install on the vehicle body. Furthermore, the transmission components have high transmission efficiency and good transmission stability, making the door opening and closing process more stable and reliable, resulting in a better user experience.

[0005] According to an embodiment of the present invention, a door hinge assembly includes: a first mounting member and a second mounting member, the first mounting member being used to connect to a vehicle body and the second mounting member being used to connect to a door; and a drive mechanism, the drive mechanism including a drive member and a transmission assembly, the transmission assembly being mounted on the first mounting member, and the drive member being poweredly connected to the second mounting member through the transmission assembly to drive the second mounting member to move in two directions relative to the first mounting member.

[0006] The door hinge assembly according to an embodiment of the present invention, by setting a drive mechanism including a drive member and a transmission component, wherein the drive member drives the second mounting member to move in two directions relative to the first mounting member through the transmission component, so as to realize the opening and closing of the door. It has a simple structure, is easy to install and disassemble, has high compactness, occupies little space, and is easy to arrange and install on the vehicle body. Moreover, the transmission component has high transmission efficiency and good transmission stability, making the door opening and closing process more stable and reliable, and providing a better user experience.

[0007] According to some embodiments of the present invention, in a door hinge assembly, the transmission component includes a transmission arm, a drive member for driving the transmission arm to rotate, a second mounting member rotatably connected to the transmission arm, and the second mounting member being poweredly connected to the transmission arm so as to rotate relative to the transmission arm while the second mounting member rotates with the transmission arm.

[0008] According to some embodiments of the present invention, in a door hinge assembly, the drive arm is rotatably mounted to the first mounting member about a first axis, and the second mounting member is rotatably connected to the drive arm about a second axis, wherein the first axis and the second axis are not in the same plane.

[0009] According to some embodiments of the present invention, the door hinge assembly further includes a transmission gear rotatably mounted on the transmission arm, the transmission gear being configured to rotate on its own axis while rotating with the transmission arm about the first axis, and the transmission gear being poweredly connected to the second mounting member to drive the second mounting member to rotate about the second axis during rotation.

[0010] According to some embodiments of the present invention, the door hinge assembly further includes a mating gear, the mating gear being fixedly mounted on the first mounting member, the axis of the mating gear coinciding with the first axis, the mating gear meshing with the transmission gear, and the transmission gear being configured to rotate under the action of the mating gear when rotating with the transmission arm.

[0011] According to some embodiments of the present invention, the door hinge assembly further includes a transmission rod, the second mounting member is rotatably connected to the transmission arm via a transmission shaft, one end of the transmission rod is eccentrically connected to the transmission gear, and the other end of the transmission rod is movably connected to the transmission shaft to drive the second mounting member to rotate relative to the transmission arm.

[0012] According to some embodiments of the present invention, in a door hinge assembly, the other end of the transmission rod is provided with a sliding guide post, and the outer peripheral wall of the transmission shaft is provided with a sliding guide groove. The sliding guide post is slidably installed in the sliding guide groove to drive the transmission shaft to rotate around the second axis.

[0013] According to some embodiments of the present invention, the door hinge assembly includes a drive shaft segment and a connecting shaft segment distributed along the axial direction, a sliding guide groove is disposed on the drive shaft segment, the connecting shaft segment is fixedly connected to the second mounting member, and the connecting shaft segment is rotatably connected to the drive arm.

[0014] According to some embodiments of the present invention, in a door hinge assembly, the transmission arm is provided with a rotating connecting block, the rotating connecting block includes at least two first connecting portions, the second mounting member is provided with at least two second connecting portions, the second connecting portions are fixedly connected to the transmission shaft, the transmission shaft rotatably passes through the first connecting portions, and the at least two first connecting portions and the at least two second connecting portions are staggered along the axial direction of the transmission shaft.

[0015] According to some embodiments of the present invention, in a door hinge assembly, the transmission gear is rotatably mounted on the transmission arm about a third axis, the third axis being parallel and spaced apart from the first axis, and the third axis being located between the first axis and the second axis.

[0016] According to some embodiments of the present invention, in a door hinge assembly, the first mounting member is provided with a limiting block, and the transmission arm is limited below the limiting block when it is rotated to its maximum position relative to the first mounting member.

[0017] According to some embodiments of the present invention, the door hinge assembly includes a transmission arm comprising a rotating disk portion and a connecting limiting portion. The rotating disk portion is rotatably connected to the first mounting member, and the connecting limiting portion is connected to the outer side of the rotating disk portion. The driving member and the second mounting member are respectively connected to the connecting limiting portion, and the connecting limiting portion is adapted to limit and press against the limiting block.

[0018] According to some embodiments of the present invention, in a door hinge assembly, the drive member is connected to one end of the connecting limiting portion away from the rotating disk portion; and / or, the limiting block and the second mounting member are respectively located on both sides of the connecting limiting portion.

[0019] According to some embodiments of the present invention, the door hinge assembly is configured as a drive telescopic rod, the drive telescopic rod is configured to be telescopic, one end of the drive telescopic rod is rotatably connected to the first mounting member, and the other end of the drive telescopic rod is rotatably connected to the transmission arm.

[0020] According to some embodiments of the present invention, the rotation angle of the drive arm relative to the first mounting member is A1, and satisfies: 65°≤A1≤95°; and / or, the rotation angle of the second mounting member relative to the drive arm is A2, and satisfies: 0°≤A2≤20°.

[0021] The present invention also proposes a vehicle.

[0022] The vehicle according to an embodiment of the present invention includes a body, a door, and a door hinge assembly as described in any of the above embodiments, wherein the first mounting member is connected to the body and the second mounting member is connected to the door.

[0023] The vehicle and the aforementioned door hinge assembly have the same advantages over the prior art, which will not be repeated here.

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

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a schematic diagram of the structure of the door hinge assembly according to an embodiment of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of the door hinge assembly according to an embodiment of the present invention. Figure 2 ;

[0028] Figure 3 This is a cross-sectional view of a door hinge assembly according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the door hinge assembly according to an embodiment of the present invention. Figure 3 (When the car door is open);

[0030] Figure 5 This is a schematic diagram of the structure of the first mounting component according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the transmission arm according to an embodiment of the present invention;

[0032] Figure 7 This is a structural schematic diagram of the vehicle body, door, and door hinge assembly according to an embodiment of the present invention.

[0033] Figure label:

[0034] Door hinge assembly 100, body 200, door 300

[0035] First mounting component 1, limit block 11, first ball head bolt 12

[0036] Second mounting component 2, second connecting part 21

[0037] Drive mechanism 3, drive component 31, transmission assembly 32, transmission arm 321, rotating connecting block 3211, first connecting part 32111, rotating disk part 3212, connecting limiting part 3213, second ball head bolt 3214, transmission gear 322, mating gear 323, transmission rod 324, sliding guide post 3241, transmission shaft 325, transmission shaft section 3251, sliding guide groove 32511, connecting shaft section 3252.

[0038] First mounting hole 41, second mounting hole 42, first through hole 43, first rotating shaft 44, second rotating shaft 45, connecting hole 46. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0043] The following is for reference. Figures 1-7 The present invention describes a door hinge assembly 100, which enables the door 300 to open obliquely upward. The door hinge assembly 100 has a simple structure, is easy to install and disassemble, is highly compact, occupies little space, and is easy to arrange and install on the vehicle body 200. In addition, the transmission component 32 has high transmission efficiency and good transmission stability, making the opening and closing process of the door 300 more stable and reliable, and providing a better user experience.

[0044] like Figures 1-7 As shown, a door hinge assembly 100 according to an embodiment of the present invention includes: a first mounting member 1, a second mounting member 2, and a drive mechanism 3.

[0045] The first mounting component 1 is used to connect to the vehicle body 200, and the second mounting component 2 is used to connect to the vehicle door 300. In practice, the first mounting component 1 and the vehicle body 200 can be connected by screws, bolts, or other threaded connections to achieve a fixed connection between the first mounting component 1 and the vehicle body 200. Similarly, the second mounting component 2 and the vehicle door 300 can also be connected by screws, bolts, or other threaded connections to achieve a fixed connection between the second mounting component 2 and the vehicle door 300. This makes the first mounting component 1 and the vehicle body 200 connected as a single structure, and the second mounting component 2 and the vehicle door 300 connected as a single structure. Of course, the first mounting component 1 and the vehicle body 200, and the second mounting component 2 and the vehicle door 300 can also be connected by other connection methods such as snap-fit ​​or welding. These methods are flexible and optional and are not limited to those described in this embodiment.

[0046] In this way, the first mounting part 1 is firmly connected to the body 200, and the second mounting part 2 is firmly connected to the door 300. When the second mounting part 2 moves relative to the first mounting part 1, the second mounting part 2 can drive the door 300 to move stably together, thereby realizing the movement of the door 300 relative to the body 200 and realizing the stable opening and closing of the door 300.

[0047] Furthermore, the door hinge assembly 100 includes a drive mechanism 3, which drives the second mounting member 2 to move relative to the first mounting member 1. The drive mechanism 3 includes a drive member 31 and a transmission assembly 32. The transmission assembly 32 is mounted on the first mounting member 1, and the drive member 31 is poweredly connected to the second mounting member 2 via the transmission assembly 32 to drive the second mounting member 2 to move relative to the first mounting member 1 in two directions.

[0048] In other words, the drive component 31 is used to provide power to drive the transmission component 32 to move. When the transmission component 32 moves, it drives the second mounting component 2 to move relative to the first mounting component 1, thereby realizing the power transmission from the drive component 31 to the second mounting component 2, and realizing the opening and closing of the door 300 relative to the body 200.

[0049] The second mounting member 2 moves relative to the first mounting member 1 in two directions, namely the vertical direction of the vehicle and the inward and outward direction of the vehicle. That is, the driving member 31 can drive the second mounting member 2 to move relative to the first mounting member 1 in the vertical and outward directions, thereby enabling the door 300 to move relative to the body 200 in the vertical and inward directions of the vehicle, thus realizing the door 300 opening diagonally upward, that is, opening outward while simultaneously opening upward, and the door 300 closing.

[0050] Understandably, during the actual opening of the car door 300, the second mounting component 2 drives the car door 300 to move outward and upward relative to the body 200 until it moves to a certain range, thus achieving the diagonal upward opening of the car door 300. During the closing of the car door 300, the second mounting component 2 drives the car door 300 to move inward and downward relative to the body 200 until it moves to a certain range, at which point the car door 300 and the body 200 are on the same plane, and the car door 300 completely closes the body 200, thus achieving the diagonal downward closing of the car door 300.

[0051] In actual design, the drive component 31 can be configured as a drive structure such as a drive motor, electric strut, hydraulic cylinder, or hydraulic strut, and the transmission component 32 can be configured as a gear transmission component, a gear and rack transmission component, or a gear and cam structure transmission component, etc.

[0052] In the existing technology, the opening and closing of the door 300 is achieved through a multi-link mechanism. Multiple axes intersect at one or two points, which requires extremely high manufacturing and assembly precision. Otherwise, problems such as unsmooth movement or jamming may occur. At the same time, the structure is complex, with many parts and a large space occupation, which imposes many restrictions and constraints on the layout space of the side of the vehicle body, i.e., the body 200. The design and layout are difficult, and it is not easy to quickly assemble and adjust the door hinge assembly 100.

[0053] The door hinge assembly 100 of this application can realize the opening and closing of the door 300 based on a drive mechanism 3. In the drive mechanism 3, the drive component 31 drives the second mounting component 2 to move in two directions relative to the first mounting component 1 through the transmission component 32, thereby realizing the opening and closing of the door 300. The structure is simple, easy to install and disassemble, highly compact, occupies little space, and is easy to arrange and install on the body 200. Moreover, the transmission component 32 has high transmission efficiency and good transmission stability, making the opening and closing process of the door 300 more stable and reliable, and providing a better user experience.

[0054] According to an embodiment of the present invention, the door hinge assembly 100 is provided with a drive mechanism 3 including a drive member 31 and a transmission assembly 32. The drive member 31 drives the second mounting member 2 to move in two directions relative to the first mounting member 1 through the transmission assembly 32, so as to realize the opening and closing of the door 300. The structure is simple, easy to install and disassemble, highly compact, occupies little space, and is easy to arrange and install on the vehicle body 200. Moreover, the transmission assembly 32 has high transmission efficiency and good transmission stability, making the opening and closing process of the door 300 more stable and reliable, and providing a better user experience.

[0055] In some embodiments, the transmission assembly 32 includes a transmission arm 321, a drive member 31 for driving the transmission arm 321 to rotate, and a second mounting member 2 rotatably connected to the transmission arm 321 and poweredly connected to the transmission arm 321 so that the second mounting member 2 rotates relative to the transmission arm 321 while rotating with the transmission arm 321.

[0056] In other words, the output end of the drive member 31 is connected to the transmission arm 321 to provide power to the transmission arm 321 and drive the transmission arm 321 to rotate. The second mounting member 2 is poweredly connected to the transmission arm 321 so that when the transmission arm 321 rotates, it can drive the second mounting member 2 to rotate, thereby transmitting power to the second mounting member 2 and realizing the rotational movement of the second mounting member 2. At the same time, the second mounting member 2 is connected to the transmission arm 321 and can rotate relative to the transmission arm 321, so that the second mounting member 2 rotates relative to the transmission arm 321 while rotating with the transmission arm 321. Thus, the second mounting member 2 can rotate relative to the first mounting member 1 in two directions.

[0057] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the transmission assembly 32 includes a transmission arm 321, which is rotatably connected to the transmission arm 321, and the second mounting member 2 is power-connected to the transmission arm 321, as shown. Figure 2 and Figure 4 As shown in the vertical and horizontal directions and the internal and external directions, when the driving component 31 drives the transmission arm 321 to rotate upward (clockwise as seen in the figure), the second mounting component 2 rotates upward together with the transmission arm 321 (clockwise as seen in the figure). This causes the second mounting component 2 to rotate outward relative to the transmission arm 321 while rotating upward (counterclockwise as seen in the figure). As a result, the second mounting component 2 rotates upward and outward relative to the first mounting component 1, thereby opening the door 300.

[0058] Correspondingly, when the drive member 31 drives the transmission arm 321 to rotate downward (counterclockwise as seen in the figure), the second mounting member 2 rotates downward together with the transmission arm 321 (counterclockwise as seen in the figure), so that while the second mounting member 2 rotates downward, it also rotates inward relative to the transmission arm 321 (clockwise as seen in the figure), thereby causing the second mounting member 2 to rotate upward and inward relative to the first mounting member 1, thus closing the door 300.

[0059] In some embodiments, the transmission arm 321 is rotatably mounted on the first mounting member 1 about a first axis, and the second mounting member 2 is rotatably connected to the transmission arm 321 about a second axis, wherein the first axis and the second axis are not in the same plane.

[0060] Specifically, the first axis can be located in a horizontal plane, and the second axis can be located in a plane that intersects with the horizontal plane. For example, the second axis can be located in a vertical plane or other planes, so that the extension directions of the first axis and the second axis are different, which can realize that the second mounting member 2 can move in two directions relative to the first mounting member 1.

[0061] The transmission arm 321 is rotatably mounted on the first mounting member 1 about a first axis, meaning the transmission arm 321 is mounted on the first mounting member 1 and can rotate about the first axis relative to the first mounting member 1. The second mounting member 2 is rotatably connected to the transmission arm 321 about a second axis, meaning the second mounting member 2 is connected to the transmission arm 321 and can rotate about the second axis relative to the transmission arm 321. Thus, when the transmission arm 321 rotates about the first axis relative to the first mounting member 1, it can drive the second mounting member 2 to rotate about the first axis together. At the same time, the second mounting member 2 will also rotate about the second axis relative to the transmission arm 321. This allows the second mounting member 2 to move about the second axis while rotating about the first axis relative to the first mounting member 1, thereby realizing the movement of the second mounting member 2 relative to the first mounting member 1 in two directions.

[0062] In a specific embodiment, such as Figure 2 and Figure 4As shown, the first axis is located in the horizontal plane and extends laterally along the vehicle's inward and outward directions, allowing the transmission arm 321 to rotate in the vertical plane. The second axis is located in the vertical plane and extends vertically along the vehicle's inward and outward directions, allowing the second mounting member 2 to rotate in the horizontal plane. Thus, when the driving member 31 drives the transmission arm 321 to rotate upward around the first axis (clockwise as seen in the figure), the second mounting member 2 rotates upward around the first axis along with the transmission arm 321 (clockwise as seen in the figure). This causes the second mounting member 2 to rotate outward relative to the transmission arm 321 around the second axis (counterclockwise as seen in the figure) while rotating upward. Consequently, the second mounting member 2 rotates upward around the first axis and outward around the second axis relative to the first mounting member 1, achieving the diagonal upward opening of the door 300.

[0063] Correspondingly, when the drive member 31 drives the transmission arm 321 to rotate downward around the first axis (counterclockwise as seen in the figure), the second mounting member 2 rotates downward around the first axis together with the transmission arm 321 (counterclockwise as seen in the figure). This causes the second mounting member 2 to rotate inward around the second axis relative to the transmission arm 321 while rotating downward (clockwise as seen in the figure). As a result, the second mounting member 2 rotates upward around the first axis and inward around the second axis relative to the first mounting member 1, thereby closing the door 300.

[0064] In practical design, such as Figure 5 As shown, a first mounting hole 41 can be provided on the first mounting component 1, such as... Figures 2-4 As shown, the first rotating shaft 44 can be fixedly installed in the first mounting hole 41, and the axis of the first rotating shaft 44 is the first axis. Meanwhile, as... Figure 6 As shown, a first through hole 43 can be provided on the transmission arm 321, and a first rotating shaft 44 can be passed through the first through hole 43, so that the transmission arm 321 can rotate flexibly around the first rotating shaft 44, and the transmission arm 321 can be rotatably installed on the first mounting part 1 around the first axis.

[0065] In some embodiments, the transmission assembly 32 further includes a transmission gear 322, which is rotatably mounted on the transmission arm 321. The transmission gear 322 is configured to rotate on its own axis while rotating with the transmission arm 321 about a first axis, and the transmission gear 322 is poweredly connected to the second mounting member 2 to drive the second mounting member 2 to rotate about a second axis when rotating on its own axis.

[0066] In other words, the transmission gear 322 is mounted on the transmission arm 321 to ensure the stability of the transmission gear 322. The transmission gear 322 is rotatable relative to the transmission arm 321; that is, the transmission gear 322 can rotate on its own axis to achieve relative rotation between the transmission gear 322 and the transmission arm 321. The transmission gear 322 is poweredly connected to the second mounting member 2; that is, when the transmission gear 322 rotates, it drives the second mounting member 2 to rotate, thus transmitting power from the transmission gear 322 to the second mounting member 2. Therefore, when the transmission arm 321 rotates around the first axis, the transmission gear 322 rotates on its own axis, which in turn drives the second mounting member 2 to rotate around the second axis, thereby enabling the door 300 to rotate around the second pivot 45 and allowing the door 300 to open upwards.

[0067] In actual design, the transmission gear 322 and the second mounting component 2 can be connected by other transmission structures such as gears, worm gears, cam structures, and gear racks. The options are flexible and not limited to those described in this embodiment.

[0068] Specifically, such as Figures 1-4 As shown, the transmission assembly 32 also includes a transmission gear 322, which rotates about the second shaft 45, as... Figure 6 As shown, a second mounting hole 42 can be provided on the transmission arm 321, and the second rotating shaft 45 can be fixedly installed in the second mounting hole 42. The transmission gear 322 can be sleeved on the second rotating shaft 45 and rotate around the second rotating shaft 45, thereby realizing that the transmission gear 322 is rotatably installed on the transmission arm 321 and realizing the rotation of the transmission gear 322.

[0069] In some embodiments, the transmission assembly 32 further includes a mating gear 323, which is fixedly mounted on the first mounting member 1. The axis of the mating gear 323 coincides with the first axis. The mating gear 323 meshes with the transmission gear 322. The transmission gear 322 is configured to rotate under the action of the mating gear 323 when it rotates with the transmission arm 321.

[0070] In other words, when the transmission arm 321 rotates around the first axis, the transmission gear 322 rotates along with the transmission arm 321 around the first axis. Since the mating gear 323 meshes with the transmission gear 322 and the mating gear 323 is fixed, the transmission gear 322 will rotate under the action of the mating gear 323 when it rotates with the transmission arm 321 around the first axis. In other words, when the transmission arm 321 rotates around the first axis, the transmission gear 322 both revolves around the mating gear 323 and rotates on its own axis, so as to transmit power to the second mounting member 2 during rotation, thereby driving the second mounting member 2 to rotate around the second axis.

[0071] In a specific embodiment, such as Figures 1-4As shown, the mating gear 323 can be sleeved on the outside of the first rotating shaft 44 and fixedly connected to the first rotating shaft 44, so that the mating gear 323 is fixedly installed on the first mounting part 1, so that the axis of the mating gear 323 is the axis of the first rotating shaft 44, that is, the axis of the mating gear 323 coincides with the first axis, and the mating gear 323 meshes with the transmission gear 322, so that the transmission gear 322 can rotate under the drive of the mating gear 323 when it rotates with the transmission arm 321.

[0072] In actual design, an internal thread can be provided inside the mating gear 323, and an external thread matching the internal thread can be provided on the outer peripheral wall of the first rotating shaft 44 to achieve threaded fixation between the mating gear 323 and the first rotating shaft 44. Of course, the mating gear 323 and the first rotating shaft 44 can also be fixedly connected by keyway fixation, snap-fit ​​fixation, welding fixation, integral molding, etc. The options are flexible and not limited to those described in this embodiment. They can be flexibly set according to actual needs.

[0073] In some embodiments, the transmission assembly 32 further includes a transmission rod 324, the second mounting member 2 is rotatably connected to the transmission arm 321 via a transmission shaft 325, one end of the transmission rod 324 is eccentrically connected to the transmission gear 322, and the other end of the transmission rod 324 is movably connected to the transmission shaft 325 to drive the second mounting member 2 to rotate relative to the transmission arm 321.

[0074] In other words, the transmission rod 324 is connected to the transmission arm 321 and is rotatable relative to the transmission arm 321, meaning that the transmission rod 324 and the transmission arm 321 can rotate relative to each other. One end of the transmission rod 324 is eccentrically connected to the transmission gear 322, so that when the transmission gear 322 rotates, the transmission rod 324 can move along a certain trajectory. The other end of the transmission rod 324 is movably connected to the transmission shaft 325, meaning that the transmission rod 324 is connected to the transmission shaft 325 and is movable relative to the transmission shaft 325. Thus, the transmission rod 324 is connected between the transmission gear 322 and the rotating shaft. When the transmission gear 322 rotates, the transmission gear 322 will drive the transmission rod 324 to move along a certain trajectory relative to the transmission shaft 325. In turn, when the transmission rod 324 moves, it will drive the second mounting part 2 to rotate relative to the transmission arm 321, thereby realizing the outward opening and inward closing of the door 300.

[0075] Specifically, such as Figures 1-4As shown, the transmission assembly 32 also includes a transmission rod 324. One end of the transmission rod 324 is bent and extended toward the transmission gear 322 to be fixedly connected to the transmission gear 322. It can be connected by welding, threaded connection, snap-fit, plug-in connection, etc., so that one end of the transmission rod 324 and the transmission gear 322 are connected as an integral structure. When the transmission gear 322 rotates around the first axis, it can stably drive the transmission rod 324 to rotate around the first axis together. When the transmission gear 322 rotates, it can stably drive the transmission rod 324 to perform eccentric motion to drive the transmission shaft 325 to rotate. When the transmission shaft 325 rotates, it will drive the second mounting part 2 to rotate relative to the transmission arm 321, thereby realizing the outward opening and inward closing of the door 300.

[0076] In some embodiments, the other end of the transmission rod 324 is provided with a sliding guide post 3241, and the outer peripheral wall of the transmission shaft 325 is provided with a sliding guide groove 32511. The sliding guide post 3241 is slidably installed in the sliding guide groove 32511 to drive the transmission shaft 325 to rotate around the second axis.

[0077] Specifically, such as Figure 2 As shown, a sliding guide post 3241 is provided at the other end of the transmission rod 324 away from the transmission gear 322, and a sliding guide groove 32511 is provided on the outer peripheral wall of the transmission shaft 325. The sliding guide groove 32511 extends circumferentially along the transmission shaft 325 and is inclined along the axial direction of the transmission shaft 325. The shape and size of the sliding guide groove 32511 are adapted to the shape and size of the sliding guide post 3241, so that the sliding guide post 3241 can extend into the sliding guide groove 32511 and slide along the sliding guide groove 32511.

[0078] Therefore, when the transmission gear 322 rotates, the transmission gear 322 can drive the sliding guide post 3241 at the other end of the transmission rod 324 to slide along the extension direction of the sliding guide groove 32511, so as to drive the transmission shaft 325 to rotate around the second axis. When the transmission shaft 325 rotates, it will drive the second mounting part 2 to rotate relative to the transmission arm 321 in the inward and outward directions of the vehicle, thereby realizing the outward opening and inward closing of the door 300.

[0079] In this design, the sliding guide post 3241 is slidably installed in the sliding guide groove 32511 to drive the drive shaft 325 to rotate around the second axis, so that the drive rod 324 moves smoothly and the drive shaft 325 can rotate stably. This reduces the number of parts used, making the structure of the door hinge assembly 100 simpler and more compact, further reducing the space occupied by the door hinge assembly 100, and making it easier for the door hinge assembly 100 to be installed on the body 200.

[0080] In practice, such as Figure 2 and Figure 4As shown, when the transmission arm 321 rotates upward around the first axis (clockwise as seen in the figure), it drives the transmission shaft 325 and the transmission gear 322 to rotate upward around the first axis together (clockwise as seen in the figure). When the transmission shaft 325 rotates around the first axis, it drives the door 300 to rotate around the first axis together, so as to realize the upward opening of the door 300. During the upward rotation of the transmission gear 322, the transmission gear 322 also rotates on its own axis (counterclockwise as seen in the figure), causing the sliding guide post 3241 at the other end of the transmission rod 324 to slide downward along the sliding guide groove 32511, so as to drive the transmission shaft 325 to rotate outward around the second axis (counterclockwise as seen in the figure). When the transmission shaft 325 rotates around the second axis, it drives the door 300 to rotate around the second axis together, so as to realize the upward opening of the door 300. Thus, the diagonal upward opening of the door 300 is realized.

[0081] Correspondingly, when the transmission arm 321 rotates downward around the first axis (counterclockwise as seen in the figure), it drives the rotating shaft and transmission gear 322 to rotate upward around the first axis (counterclockwise as seen in the figure). When the transmission shaft 325 rotates around the first axis, it drives the door 300 to rotate around the first axis, thereby achieving downward closing of the door 300. During the upward rotation of the transmission gear 322, the transmission gear 322 also rotates (clockwise as seen in the figure), causing the sliding guide post 3241 at the other end of the transmission rod 324 to slide upward along the sliding guide groove 32511, thereby driving the transmission shaft 325 to rotate inward around the second axis (clockwise as seen in the figure). When the transmission shaft 325 rotates around the second axis, it drives the door 300 to rotate around the second axis, thereby achieving inward closing of the door 300. Thus, the downward oblique closing of the door 300 is achieved.

[0082] In some embodiments, the drive shaft 325 includes a drive shaft section 3251 and a connecting shaft section 3252 distributed along the axial direction. A sliding guide groove 32511 is provided on the drive shaft section 3251. The connecting shaft section 3252 is fixedly connected to the second mounting member 2, so that the connecting shaft section 3252 and the second mounting member 2 are connected as an integral structure. Thus, when the drive shaft 325 rotates around the second axis, it can drive the second mounting member 2 to rotate around the second axis. The connecting shaft section 3252 is rotatably connected to the drive arm 321, so that the drive shaft 325 can rotate relative to the drive arm 321 around the second axis, and thus the second mounting member 2 can rotate relative to the drive arm 321 around the second axis.

[0083] Therefore, by providing a drive shaft section 3251 and a connecting shaft section 3252 distributed along the axial direction, the drive shaft 325 can be fixedly connected to the second mounting member 2 and rotatably connected to the drive arm 321, thereby realizing the rotational movement of the drive shaft 325 relative to the drive arm 321, and the rotation of the drive shaft 325 can drive the second mounting member 2 to rotate together, which improves the structural compactness of the door hinge assembly 100 and reduces the use of other parts.

[0084] Specifically, such as Figure 3 As shown, the drive shaft 325 includes a drive shaft section 3251 and a connecting shaft section 3252 distributed along the axial direction, as follows: Figure 3 As shown in the vertical direction, the drive shaft section 3251 is located at the upper part of the drive shaft 325, and the connecting shaft section 3252 is located at the lower part of the drive shaft 325. The drive shaft section 3251 is provided with an inclined sliding guide groove 32511. The connecting shaft section 3252 can be fixedly connected to the second mounting part 2 by means of bolt connection, screw connection, keyway connection, snap-fit, etc., which are flexible options.

[0085] And such as Figure 6 As shown, a connecting hole 46 can be provided on the transmission arm 321. The connecting hole 46 is adapted to the connecting shaft section 3252 of the transmission shaft 325, so that the connecting shaft section 3252 can be inserted into the connecting hole 46 and can rotate flexibly in the connecting hole 46, thereby realizing the rotatable connection of the connecting shaft section 3252 to the transmission arm 321.

[0086] In some embodiments, the transmission arm 321 is provided with a rotating connecting block 3211, the rotating connecting block 3211 includes at least two first connecting portions 32111, and the second mounting member 2 is provided with at least two second connecting portions 21.

[0087] In other words, the rotating connecting block 3211 may include two, three or more first connecting parts 32111, and the second mounting part 2 may be provided with two, three or more second connecting parts 21. The first connecting parts 32111 are used to connect the drive shaft 325 to realize the rotational connection between the drive arm 321 and the drive shaft 325. The second connecting parts 21 are also used to connect the drive shaft 325 to realize the fixed connection between the drive shaft 325 and the second mounting part 2.

[0088] Furthermore, the second connecting part 21 is fixedly connected to the drive shaft 325. This connection can be achieved through bolts, screws, keyways, snap-fitting, welding, or integral molding, providing a stable, reliable, and flexible connection. A connecting hole 46 can be provided on the first connecting part 32111, and the shape and size of the connecting hole 46 are adapted to the drive shaft 325. This allows the drive shaft 325 to pass through and rotate within the connecting hole 46, enabling the drive shaft 325 to rotate through the first connecting part 32111 and achieve relative rotation between the drive arm 321 and the drive shaft 325.

[0089] In this configuration, at least two first connecting portions 32111 and at least two second connecting portions 21 are staggered along the axial direction of the drive shaft 325. This makes the connection between the second mounting member 2 and the drive shaft 325 more stable and reliable, and the drive shaft 325 can drive the second mounting member 2 to rotate more smoothly, preventing the second mounting member 2 from shifting or shaking during movement. It also makes the connection between the drive arm 321 and the drive shaft 325 more stable and reliable, and the drive arm 321 can drive the drive shaft 325 to rotate more stably. Furthermore, this reduces the axial dimension of the drive shaft 325, thereby further reducing the space occupied by the door hinge assembly 100.

[0090] Specifically, such as Figure 3 As shown, the transmission arm 321 is provided with a rotating connecting block 3211, which includes three first connecting parts 32111. The three first connecting parts 32111 are spaced apart along the vertical direction, i.e., the axial direction of the transmission shaft 325. The second mounting member 2 is provided with two second connecting parts 21. The two second connecting parts 21 are spaced apart along the vertical direction, i.e., the axial direction of the transmission shaft 325. Each first connecting part 32111 is provided with a connecting hole 46 that passes through along the thickness direction. The transmission shaft 325 can be sequentially inserted into the three connecting holes 46 to realize the rotational connection between the transmission arm 321 and the transmission shaft 325. The two second connecting parts 21 can be located between adjacent first connecting parts 32111 to be fixedly connected to the transmission shaft 325, so that the three first connecting parts 32111 and the two second connecting parts 21 are staggered along the axial direction of the transmission shaft 325.

[0091] In some embodiments, the transmission gear 322 is rotatably mounted on the transmission arm 321 about a third axis, the third axis being parallel and spaced apart from the first axis, and the third axis being located between the first axis and the second axis.

[0092] In other words, the transmission gear 322 transmits power between the mating gear 323 and the transmission shaft 325, and the transmission gear 322 also rotates in the vertical plane. Figures 2-4As shown, the transmission gear 322 rotates around the second rotating shaft 45, that is, the axis of the second rotating shaft 45 is the third axis. The transmission gear 322 is rotatably mounted on the transmission arm 321 through the second rotating shaft 45, and the second rotating shaft 45 is parallel and spaced apart from the first rotating shaft 44, that is, the third axis is spaced apart from the first axis, so as to ensure that the mating gear 323 meshes with the transmission gear 322. The transmission gear 322 can rotate under the action of the mating gear 323. The second rotating shaft 45 is located between the first rotating shaft 44 and the transmission shaft 325, that is, the third axis is located between the first axis and the second axis, which ensures the compactness of the transmission structure, improves the transmission efficiency, and makes the transmission more stable.

[0093] In some embodiments, the first mounting member 1 is provided with a limiting block 11, and the transmission arm 321 is limited below the limiting block 11 when it rotates to the maximum position relative to the first mounting member 1.

[0094] Specifically, the limiting block 11 can be set on the upper or lower side of the transmission arm 321, or both the upper and lower sides can be provided with limiting blocks 11, so that, Figure 2 As shown in the vertical direction, when the transmission arm 321 rotates upward relative to the first mounting member 1 to the maximum position, the transmission arm 321 can be limited to press against the limiting block 11 to limit the transmission arm 321 from rotating upward by too large an angle, which would cause the door 300 to open too large an angle. When the transmission arm 321 rotates downward relative to the first mounting member 1 to the maximum position, the transmission arm 321 can be limited to press against the limiting block 11 to limit the transmission arm 321 from continuing to rotate downward by too large an angle under the action of the gravity and motion inertia of the door 300, which would cause the door 300 to collide with the body 200.

[0095] In some embodiments, the transmission arm 321 includes a rotating disk portion 3212 and a connecting limiting portion 3213. The rotating disk portion 3212 is rotatably connected to the first mounting member 1, and the connecting limiting portion 3213 is connected to the outside of the rotating disk portion 3212. The driving member 31 and the second mounting member 2 are respectively connected to the connecting limiting portion 3213, and the connecting limiting portion 3213 is adapted to limit and press against the limiting block 11.

[0096] Specifically, such as Figure 6 As shown, the transmission arm 321 includes a rotating disk portion 3212 and a connecting and limiting portion 3213. The connecting and limiting portion 3213 is mainly used to connect the transmission shaft 325, and the rotating disk portion 3212 is mainly used to realize power transmission. The rotating disk portion 3212 is connected to the first mounting member 1 and is rotatable relative to the first mounting member 1. The connecting and limiting portion 3213 is connected to the outer side of the rotating disk portion 3212. Figure 6The connecting limit part 3213 shown is connected to the lower side of the rotating disk part 3212, the driving member 31 is connected to the bottom of the connecting limit part 3213, and the second mounting member 2 is connected to the side of the connecting limit part 3213. Thus, the connection between the transmission arm 321, the driving member 31, and the second mounting member 2 is realized through the connecting limit part 3213, which further improves the structural compactness of the door hinge assembly 100 and eliminates the need for other connecting parts.

[0097] In practice, when the transmission arm 321 rotates downward around the first axis to the initial position, due to the gravity and inertia of the door 300, it may continue to rotate downward, causing the door 300 to collide with the body 200 and causing damage to both the door 300 and the body 200. By setting the limiting block 11 on the side of the connecting limiting part 3213, when the transmission arm 321 rotates downward around the first axis to the initial position, the connecting limiting part 3213 can press against the limiting block 11 to limit the transmission arm 321 from continuing to rotate downward, thereby preventing the door 300 from colliding with the body 200 and effectively protecting the door 300 and the body 200.

[0098] In actual design, the limiting block 11 may include a metal core and an outer rubber. The outer rubber is wrapped around the metal core. The metal core is used to support the limiting block 11, and the outer rubber is used for buffering and limiting to prevent abnormal noise and damage to the connecting limiting part 3213 when it presses against the limiting block 11.

[0099] In some embodiments, the drive member 31 is connected to the end of the connection limiting portion 3213 away from the rotating disk portion 3212.

[0100] Specifically, such as Figures 1-4 As shown, the drive member 31 is connected to the bottom end of the connecting limit part 3213, that is, the end of the connecting limit part 3213 away from the rotating disk part 3212. In this way, the drive member 31 can drive the entire transmission arm 321 to move stably.

[0101] In other embodiments, the limiting block 11 and the second mounting member 2 are located on both sides of the connecting limiting part 3213.

[0102] Specifically, such as Figures 1-4 As shown, Figures 1-4 The front-back direction shown is the front-back direction of the vehicle. The limiting block 11 is located on the front side of the connecting limiting part 3213, and the second mounting part 2 is located on the rear side of the connecting limiting part 3213. Thus, the limiting block 11 and the second mounting part 2 are located on both sides of the connecting limiting part 3213, thereby avoiding the limiting block 11 from affecting the movement of the second mounting part 2. At the same time, it can effectively ensure the limiting of the transmission arm 321.

[0103] In some embodiments, the driving member 31 is configured as a driving telescopic rod, which is telescopic, with one end of the driving telescopic rod rotatably connected to the first mounting member 1 and the other end of the driving telescopic rod rotatably connected to the transmission arm 321.

[0104] Specifically, when the telescopic rod extends, it can push the transmission arm 321 to rotate upward around the first axis. At the same time, the transmission arm 321 drives the transmission shaft 325 and the second mounting member 2 to rotate upward around the first axis together. When the second mounting member 2 rotates upward, it can drive the door 300 to rotate upward around the first axis together, thereby realizing the upward opening of the door 300. When the telescopic rod retracts, it can pull the transmission arm 321 to rotate downward around the first axis. At the same time, the transmission arm 321 drives the transmission shaft 325 and the second mounting member 2 to rotate downward around the first axis together. When the second mounting member 2 rotates upward, it can drive the door 300 to rotate downward around the first axis together, thereby realizing the downward closing of the door 300.

[0105] In practical design, such as Figure 2 As shown, a first ball head bolt 12 can be provided on the first mounting part 1. The first ball head bolt 12 can be riveted to the first mounting part 1. The first ball head bolt 12 is ball-jointed to one end of the drive telescopic rod to realize the rotational connection between one end of the drive telescopic rod and the first mounting part 1. A second ball head bolt 3214 can be provided on the transmission arm 321. The second ball head bolt 3214 can be riveted to the transmission arm 321. The second ball head bolt 3214 is ball-jointed to the other end of the drive telescopic rod to realize the rotational connection between the other end of the drive telescopic rod and the transmission arm 321. Thus, one end of the drive telescopic rod can rotate in any direction relative to the first mounting part 1, and the other end of the drive telescopic rod can rotate in any direction relative to the transmission arm 321, enhancing flexibility and adaptability.

[0106] It should be noted that the drive telescopic rod can be a telescopic rod of an electric strut, which extends or retracts along the axial direction of the strut housing. The electric strut may also include a motor, lead screw, etc., to achieve the extension or retraction of the drive telescopic rod. Understandably, by controlling the extension of the drive telescopic rod, the rotation angle of the door 300 around the first axis can be controlled, thus achieving flexible adjustment of the upward opening angle of the door 300.

[0107] In some embodiments, the rotation angle of the transmission arm 321 relative to the first mounting member 1 is A1, and satisfies: 65°≤A1≤95°.

[0108] In other words, the rotation angle A1 of the transmission arm 321 relative to the first mounting part 1 can be 65°, 70°, 75°, 80°, 85°, 90°, 95°, or other angles within the range of 65° to 95°. This prevents the upward opening angle from being too small, which would prevent occupants from entering and exiting normally, and also prevents the opening angle from being too large, which could cause the vehicle body 200 to deform, the drive mechanism 3 to overload, or the door 300 to collide with the top obstacle and cause damage to the door 300.

[0109] Therefore, by setting the rotation angle A1 of the transmission arm 321 relative to the first mounting member 1 within a reasonable range of 65° to 95°, normal entry and exit of occupants is ensured, the drive mechanism 3, the door 300 and the body 200 are protected, the service life of the door hinge assembly 100 is extended, the safety of the vehicle is improved, and the risk of accidents is reduced.

[0110] In other embodiments, the rotation angle of the second mounting member 2 relative to the transmission arm 321 is A2, and satisfies: 0°≤A2≤20°.

[0111] In other words, the rotation angle A2 of the second mounting component 2 relative to the transmission arm 321 can be set to 0°, 5°, 10°, 15°, 20° or other angles within this range to prevent the outward opening angle from being too small, making it difficult for passengers to enter and exit, and to prevent the outward opening angle from being too large, causing the door 300 to occupy too much lateral space, making it easy for it to be collided with by other vehicles or pedestrians when parking in narrow passages or on the side.

[0112] Therefore, by setting the rotation angle A2 of the second mounting member 2 relative to the transmission arm 321 within a reasonable range of 0° to 20°, normal entry and exit of occupants is ensured, vehicle safety is improved, accident risk is reduced, and user experience is enhanced.

[0113] The present invention also proposes a vehicle.

[0114] The vehicle according to an embodiment of the present invention includes a body 200, a door 300 and a door hinge assembly 100 of any of the above embodiments, wherein a first mounting member 1 is connected to the body 200 and a second mounting member 2 is connected to the door 300.

[0115] Thus, by moving the second mounting member 2 in two directions relative to the first mounting member 1, the door 300 can be opened diagonally upward relative to the body 200, which is flexible and convenient.

[0116] The system includes a drive mechanism 3 comprising a drive component 31 and a transmission assembly 32. The drive component 31 drives the second mounting component 2 to move in two directions relative to the first mounting component 1 via the transmission assembly 32, thereby enabling the opening and closing of the door 300. The system is simple in structure, easy to install and disassemble, highly compact, occupies little space, and is easy to arrange and install on the vehicle body 200. Furthermore, the transmission assembly 32 has high transmission efficiency and good transmission stability, making the opening and closing process of the door 300 more stable and reliable, resulting in a better user experience.

[0117] In the actual design, the first mounting part 1 can be connected to the side panel of the vehicle body 200.

[0118] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0119] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A door hinge assembly, characterized in that, include: A first mounting component (1) and a second mounting component (2), wherein the first mounting component (1) is used to connect to the vehicle body (200) and the second mounting component (2) is used to connect to the vehicle door (300); The drive mechanism (3) includes a drive member (31) and a transmission assembly (32). The transmission assembly (32) is mounted on the first mounting member (1). The drive member (31) is poweredly connected to the second mounting member (2) through the transmission assembly (32) to drive the second mounting member (2) to move in two directions relative to the first mounting member (1). The transmission assembly (32) includes a transmission arm (321), the drive member (31) is used to drive the transmission arm (321) to rotate, the second mounting member (2) is rotatably connected to the transmission arm (321), and the second mounting member (2) is poweredly connected to the transmission arm (321) so that the second mounting member (2) rotates relative to the transmission arm (321) while rotating with the transmission arm (321); The transmission arm (321) is rotatably mounted on the first mounting member (1) about a first axis, and the second mounting member (2) is rotatably connected to the transmission arm (321) about a second axis. The first axis and the second axis are not in the same plane. The transmission assembly (32) further includes a transmission gear (322), which is rotatably mounted on the transmission arm (321). The transmission gear (322) is configured to rotate on its own axis while rotating with the transmission arm (321) about the first axis. The transmission gear (322) is also poweredly connected to the second mounting member (2) to drive the second mounting member (2) to rotate about the second axis when rotating on its own axis. The transmission assembly (32) further includes a mating gear (323), which is fixedly installed on the first mounting member (1). The axis of the mating gear (323) coincides with the first axis. The mating gear (323) meshes with the transmission gear (322). The transmission gear (322) is configured to rotate under the action of the mating gear (323) when it rotates with the transmission arm (321).

2. The door hinge assembly according to claim 1, characterized in that, The transmission assembly (32) further includes a transmission rod (324), and the second mounting member (2) is rotatably connected to the transmission arm (321) via a transmission shaft (325). One end of the transmission rod (324) is eccentrically connected to the transmission gear (322), and the other end of the transmission rod (324) is movably connected to the transmission shaft (325) to drive the second mounting member (2) to rotate relative to the transmission arm (321).

3. The door hinge assembly according to claim 2, characterized in that, The other end of the transmission rod (324) is provided with a sliding guide post (3241), and the outer peripheral wall of the transmission shaft (325) is provided with a sliding guide groove (32511). The sliding guide post (3241) is slidably installed in the sliding guide groove (32511) to drive the transmission shaft (325) to rotate around the second axis.

4. The door hinge assembly according to claim 3, characterized in that, The drive shaft (325) includes a drive shaft section (3251) and a connecting shaft section (3252) distributed along the axial direction. The sliding guide groove (32511) is provided on the drive shaft section (3251). The connecting shaft section (3252) is fixedly connected to the second mounting member (2), and the connecting shaft section (3252) is rotatably connected to the drive arm (321).

5. The door hinge assembly according to claim 2, characterized in that, The transmission arm (321) is provided with a rotating connecting block (3211), the rotating connecting block (3211) includes at least two first connecting parts (32111), the second mounting member (2) is provided with at least two second connecting parts (21), the second connecting parts (21) are fixedly connected to the transmission shaft (325), the transmission shaft (325) is rotatably passed through the first connecting parts (32111), and at least two first connecting parts (32111) and at least two second connecting parts (21) are staggered along the axial direction of the transmission shaft (325).

6. The door hinge assembly according to claim 1, characterized in that, The transmission gear (322) is rotatably mounted on the transmission arm (321) about a third axis, which is parallel to and spaced apart from the first axis, and is located between the first axis and the second axis.

7. The door hinge assembly according to claim 1, characterized in that, The first mounting component (1) is provided with a limiting block (11), and the transmission arm (321) is limited to a position lower than the limiting block (11) when it rotates to the maximum position relative to the first mounting component (1).

8. The door hinge assembly according to claim 7, characterized in that, The transmission arm (321) includes a rotating disk portion (3212) and a connecting limiting portion (3213). The rotating disk portion (3212) is rotatably connected to the first mounting member (1). The connecting limiting portion (3213) is connected to the outside of the rotating disk portion (3212). The driving member (31) and the second mounting member (2) are respectively connected to the connecting limiting portion (3213). The connecting limiting portion (3213) is adapted to limit and press against the limiting block (11).

9. The door hinge assembly according to claim 8, characterized in that, The drive member (31) is connected to the end of the connection limiting part (3213) away from the rotating disk part (3212); And / or, the limiting block (11) and the second mounting member (2) are located on both sides of the connecting limiting part (3213).

10. The door hinge assembly according to claim 1, characterized in that, The driving component (31) is constructed as a driving telescopic rod, which is telescopic. One end of the driving telescopic rod is rotatably connected to the first mounting component (1), and the other end of the driving telescopic rod is rotatably connected to the transmission arm (321).

11. The door hinge assembly according to claim 1, characterized in that, The rotation angle of the transmission arm (321) relative to the first mounting member (1) is A1, and satisfies: 65°≤A1≤95°; And / or, the rotation angle of the second mounting member (2) relative to the transmission arm (321) is A2, and satisfies: 0°≤A2≤20°.

12. A vehicle, characterized in that, The vehicle includes a body (200), a door (300), and a door hinge assembly as described in any one of claims 1-11, wherein the first mounting member (1) is connected to the body (200), and the second mounting member (2) is connected to the door (300).

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