Handle structure, door structure, and vehicle

Abstract

Provided in the embodiments of the present application are a handle structure, a door structure, and a vehicle. The handle structure comprises a driving member, a crank-slider mechanism, a transmission assembly, and a handle. The crank-slider mechanism is connected to the driving member, and the transmission assembly is connected to the crank-slider mechanism and the handle; one end of the crank-slider mechanism is rotatably connected to the driving member, and the other end of the crank-slider mechanism is connected to the transmission assembly; and the crank-slider mechanism drives the transmission assembly to move, and the transmission assembly drives the handle to extend or retract. In this way, the driving member directly drives the crank-slider mechanism to convert a rotational movement into a linear reciprocating movement, and drives the handle to move via the transmission assembly, such that the handle can extend or retract smoothly, thereby providing an improved durability of the handle and an improved NVH performance of the vehicle.

Description

A handle structure, a door structure, and a vehicle

[0001] This application claims priority to Chinese Patent Application No. 202411887972.7, filed on December 19, 2024, entitled “A Handle Structure, Door Structure and Vehicle”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of vehicle technology, specifically relating to a handle structure, a door structure, and a vehicle. Background Technology

[0003] With the development of science and technology and the improvement of living standards, people have put forward increasingly higher requirements for the NVH (Noise, Vibration, Harshness) performance of vehicles.

[0004] In existing technologies, the push-type concealed handle structure typically uses a two-stage worm gear structure or a cam structure of an electric motor to achieve drive transmission. However, when using a two-stage worm gear structure of an electric motor for drive transmission, the motor speed is relatively high, which affects the vehicle's NVH performance. In addition, the overall structure is relatively complex, the transmission efficiency is relatively low, and there is a greater risk of failure and abnormal noise.

[0005] When using a cam structure for drive transmission, the motor speed is relatively high, which also affects the vehicle's NVH performance. Furthermore, the cam structure limits the ability to achieve large strokes, and the cam requires high machining precision, making the transmission pair prone to wear. Summary of the Invention

[0006] In view of the above problems, this application is made in order to provide a handle structure, door structure and vehicle that overcomes or at least partially solves the above problems.

[0007] To solve the above-mentioned technical problems, this application is implemented as follows:

[0008] In a first aspect, embodiments of this application provide a handle structure, which includes: a driving component, a crank-slider mechanism, a transmission assembly, and a handle;

[0009] The crank-slider mechanism is connected to the drive component, and the transmission assembly is connected to the crank-slider mechanism and the handle respectively;

[0010] One end of the crank-slider mechanism is rotatably connected to the drive component, and the other end of the crank-slider mechanism is connected to the transmission component. The crank-slider mechanism drives the transmission component to move, and the transmission component drives the handle to extend or retract.

[0011] Optionally, the crank-slider mechanism includes a rotating shaft, a rotating rod, and a sliding element;

[0012] The rotating shaft is connected to the output end of the driving component, the rotating rod is rotatably connected to the rotating shaft and the sliding component, and the sliding component is connected to the transmission assembly.

[0013] The drive shaft drives the rotating shaft to rotate, the rotating shaft drives the rotating rod to rotate, and the rotating rod drives the sliding member to move in a straight line.

[0014] Optionally, the center of rotation of the rotating shaft around the driving member is the crank rotation center, the trajectory of the slider's linear motion is the crank straight line, and the crank rotation center and the crank straight line are offset to form an offset crank slider mechanism.

[0015] Optionally, the handle structure further includes a worm gear assembly, which is connected to the drive member and the crank-slider mechanism respectively.

[0016] Optionally, the worm gear assembly includes a worm and a turbine connected to each other, the worm being connected to the drive member and the worm being connected to the crank-slider mechanism.

[0017] Optionally, the transmission assembly includes a drive rod and a first connecting rod, and the handle includes a handle rod and a connecting rod connected at an angle;

[0018] The drive rod is connected to the crank-slider mechanism, the first connecting rod is connected to the drive rod and the handle rod respectively, and the connecting rod is rotatably connected to the drive rod;

[0019] The drive rod, the first connecting rod, the handle rod, and the connecting rod form a four-bar linkage structure.

[0020] Optionally, the drive rod has an inclined surface, and the first connecting rod includes a sliding part and a rotating part connected to the sliding part;

[0021] The sliding part is slidably connected to the inclined surface, and the rotating part is rotatably connected to the handle.

[0022] Optionally, the transmission assembly further includes a second link, which is rotatably connected between the drive rod and the connecting rod.

[0023] The drive rod, the first link, the handle rod, the connecting rod, and the second link form a five-bar linkage structure.

[0024] Secondly, embodiments of this application propose a door structure, which includes the aforementioned handle structure.

[0025] Thirdly, embodiments of this application propose a vehicle that includes the aforementioned door structure or handle structure.

[0026] In this embodiment, the handle structure includes: a driving component, a crank-slider mechanism, a transmission assembly, and a handle. The crank-slider mechanism is connected to the driving component, and the transmission assembly is connected to both the crank-slider mechanism and the handle. One end of the crank-slider mechanism is rotatably connected to the driving component, and the other end is connected to the transmission assembly. The crank-slider mechanism drives the transmission assembly to move, and the transmission assembly causes the handle to extend or retract. Thus, the driving component directly drives the crank-slider mechanism, which in turn drives the handle to extend or retract via the transmission assembly. Specifically, when the handle is needed, the driving component converts the rotational motion of the crank-slider mechanism into linear motion, for example, causing one end of the crank-slider mechanism connected to the transmission assembly to move horizontally to the right, thus moving the transmission assembly towards the outside of the vehicle and causing the transmission assembly to extend the handle. When the handle is not needed, the driving component converts the rotational motion of the crank-slider mechanism into linear motion, for example, causing one end of the crank-slider mechanism connected to the transmission assembly to move horizontally to the left, thus moving the transmission assembly towards the inside of the vehicle and causing the transmission assembly to extend the handle. In other words, by directly driving the crank-slider mechanism through a drive component, rotational motion is converted into linear reciprocating motion, which in turn drives the handlebar movement via a transmission assembly. This results in smoother handlebar extension and retraction, leading to better handlebar durability and improved NVH performance of the vehicle. This avoids the high motor speeds associated with using a two-stage worm gear drive system, reducing overall structural complexity, improving transmission efficiency, and lowering the risk of malfunctions and abnormal noises. It also avoids the high motor speeds and limitations of cam-based drive systems, which restrict large strokes and reduce machining precision requirements and wear on the transmission pairs.

[0027] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application.

[0028] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 is a schematic cross-sectional view of a handle structure according to an embodiment of this application;

[0031] Figure 2 is a perspective view of a handle structure according to an embodiment of this application;

[0032] Figure 3 is a graph showing the relationship between the movement speed V of the handle structure of this application and time T.

[0033] Reference numerals: 10-Driver; 20-Handle; 31-Rotating shaft; 32-Rotating rod; 33-Sliding element; 34-Crank rotation center; 35-Crank straight line; 41-Drive rod; 42-First connecting rod; 21-Handle lever; 22-Connecting rod; 411-Inclined surface; 421-Sliding part; 422-Rotating part; 43-Second connecting rod. Detailed Implementation

[0034] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated 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 this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] In the description of this application, 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", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] In the description of this application, it should be noted that, unless otherwise expressly 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] Referring to Figures 1 and 2, a schematic diagram of a handle structure according to an embodiment of this application is shown. Referring to Figure 3, a curve showing the relationship between the movement speed V and time T of the handle of this application is shown. The handle structure specifically includes: a driving member 10, a crank-slider mechanism, a transmission assembly, and a handle 20. The crank-slider mechanism is connected to the driving member 10, and the transmission assembly is connected to both the crank-slider mechanism and the handle 20. One end of the crank-slider mechanism is rotatably connected to the driving member 10 and rotates, while the other end is connected to the transmission assembly and moves linearly. The driving member 10 drives the crank-slider mechanism to convert the rotational motion into linear motion, the crank-slider mechanism drives the transmission assembly to move, and the transmission assembly drives the handle 20 to extend or retract.

[0040] In this embodiment, the handle structure can be a push-type concealed handle structure. The drive member 10 directly drives the crank-slider mechanism, which in turn drives the handle 20 to extend or retract via a transmission assembly. Specifically, when the handle 20 is needed, the drive member 10 converts the rotational motion of the crank-slider mechanism into linear motion. For example, it causes one end of the crank-slider mechanism connected to the transmission assembly to move horizontally to the right, causing the transmission assembly to move towards the outside of the vehicle, thus extending the handle 20. When the handle 20 is not needed, the drive member 10 converts the rotational motion of the crank-slider mechanism into linear motion. For example, it causes one end of the crank-slider mechanism connected to the transmission assembly to move horizontally to the left, then causes the transmission assembly to move towards the inside of the vehicle, thus extending the handle 20. That is, the crank-slider mechanism is directly driven by the drive component 10 to convert the rotational motion into linear reciprocating motion, and the handle 20 is driven to move through the transmission component, so as to realize the relatively smooth extension or retraction of the handle 20, realize the mechanical speed regulation of the handle 20 during the process of pushing, extending and retracting, realize the function of slow start and slow stop, further improve the running quality of the handle 20, so that the handle 20 has better durability, and the vehicle also has better NVH performance.

[0041] This approach avoids the high motor speeds associated with using a two-stage worm gear drive system, reduces overall structural complexity, improves transmission efficiency, and lowers the risk of malfunctions and abnormal noises. It also avoids the high motor speeds and limitations imposed by cam structures on achieving large strokes, which are common with cam-based drive systems. Furthermore, it reduces the requirements for machining precision and wear on the transmission pairs.

[0042] In this embodiment, the crank-slider mechanism, for example, refers to a planar linkage mechanism that uses a crank structure and a slider to achieve the mutual conversion between rotation and movement. The crank structure and the slider are connected by a connecting rod to form a revolute joint, and the slider is connected to a transmission component to form a prismatic joint. For example, the crank-slider mechanism can be a central type or an offset type, etc. The specific type of the crank-slider mechanism is not limited in this embodiment.

[0043] For example, in this embodiment, the drive component 10 can be a motor or electric motor, etc., to achieve direct motor drive and provide a relatively stable and reliable driving force to the handle structure. This embodiment does not limit the specific type of the drive component 10. The crank-slider mechanism is similar to a crank-slider mechanism, converting the rotational motion output by the drive component 10 into linear motion, exhibiting good transmission stability and reliability. The transmission component can be a transmission pair formed by combining multiple linkage structures, transmitting the power of the crank-slider mechanism to the handle 20, allowing the handle 20 to extend or retract. The handle 20 is connected to the car door for the user to grip and open / close the door.

[0044] Optionally, in this embodiment, the crank-slider mechanism includes a rotating shaft 31, a rotating rod 32, and a sliding member 33. The rotating shaft 31 is connected to the output end of the drive member 10, the rotating rod 32 is rotatably connected to both the rotating shaft 31 and the sliding member 33, and the sliding member 33 is connected to the transmission assembly. The drive shaft drives the rotating shaft 31 to rotate, the rotating shaft 31 drives the rotating rod 32 to rotate, and the rotating rod 32 drives the sliding member 33 to move linearly. In this way, the rotation of the drive member 10 drives the rotating shaft 31 to rotate synchronously. For example, the rotating shaft 31 can rotate around the drive member 10, and the rotating shaft 31 drives one end of the rotating rod 32 to rotate. At the same time, the other end of the rotating rod 32 drives the sliding member 33 to move linearly in the horizontal direction, so that the crank-slider mechanism converts the rotational motion output by the drive member 10 into linear motion. The structure is simple, stable, and reliable.

[0045] For example, in this embodiment, the number of rotating rods 32 can be one. One end of the rotating rod 32 can be rotatably connected to the rotating shaft 31 by means of a rivet or screw, and the other end of the rotating rod 32 can also be rotatably connected to the sliding member 33 by means of a rivet or screw. In addition, the number of rotating rods 32 can also be two or three, etc., and can be set according to actual needs such as spatial structure. In this embodiment, the specific setting method and the number of rotating rods 32 are not limited.

[0046] In this embodiment of the application, for example, the slider 33 can be a slider or a slide plate, etc. Optionally, a groove extending in the horizontal direction can be provided for the slider 33, that is, the groove extends in the horizontal direction and the slider 33 is slidably connected to the groove, so as to further limit the movement trajectory of the slider 33, avoid the occurrence of offset and misalignment, and make the reciprocating motion of the slider 33 in the horizontal direction more reliable.

[0047] In this embodiment, optionally, the center of rotation of the rotating shaft 31 around the driving member 10 is the crank rotation center 34, and the trajectory of the slider's linear motion is the crank straight line 35. The crank rotation center 34 and the crank straight line 35 are offset to form an offset crank-slider mechanism. That is, the crank rotation center 34 of the rotating shaft 31 around the driving member 10 is not on the crank straight line 35 or its extension line of the slider's linear motion, and the two do not coincide, forming an offset crank-slider mechanism. This mechanism has the characteristics of quick-return motion and is also beneficial for spatial layout. As shown in Figure 3, the crank-slider mechanism enables the handle 20 to be extended or retracted relatively smoothly through the transmission component, avoiding large swaying. This achieves mechanical speed regulation of the handle 20 during the pushing, extending, and retracting process, realizing the function of gentle start and stop, further improving the operating quality of the handle 20, and giving the vehicle better NVH performance.

[0048] For example, in this embodiment of the application, as shown in Figure 3, the curve of the movement speed V of the handle 20 versus time T is shown. For example, during the extension process of the handle 20, as can be seen from the figure, in the initial stage, the handle 20 extends slowly and smoothly under the drive of the drive component 10, the crank-slider mechanism, and the transmission component; in the middle stage, the movement speed of the handle 20 is faster, and the handle 20 also has a large movement space in the middle stage, making it less likely to collide or wear with other structures; in the final stage, the speed of the handle 20 gradually decreases, slowly moves to the preset extension position, and stops moving relatively smoothly, making the entire process of the handle 20 extending outside the vehicle relatively smooth and reliable, with good NVH performance.

[0049] Similarly, as shown in Figure 3, during the retraction of the handle 20, in the initial stage, the handle 20 retracts slowly and smoothly under the drive of the drive component 10, the crank-slider mechanism, and the transmission components; in the middle stage, the handle 20 moves faster, and also has a large range of motion, making it less likely to collide or wear with other structures; in the final stage, the speed of the handle 20 gradually decreases, slowly moving to the preset retraction position and stopping relatively smoothly, making the entire process of the handle 20 retracting into the vehicle relatively smooth and reliable, with good NVH performance.

[0050] Optionally, in this embodiment, the handle structure further includes a worm gear assembly, which is connected to the drive member 10 and the crank-slider mechanism respectively. For example, the drive member 10 can be a high-speed, low-torque motor. In this case, if the drive member 10 has insufficient torque or high torque at low speed, resulting in insufficient space for its arrangement, the drive member 10 can be decelerated and acted as an actuator via a first-stage worm gear, outputting a reduced driving force to the crank-slider mechanism, thus providing a more stable and reliable driving force to the crank-slider mechanism.

[0051] Optionally, in this embodiment, the worm gear assembly includes a worm and a turbine connected to each other. The worm is connected to the drive member 10, and the worm is connected to the crank-slider mechanism. This allows the rotational force output by the drive member 10 to be first transmitted to the worm, driving it to rotate. The worm then drives the worm to rotate, which in turn drives the rotating shaft 31 of the crank-slider mechanism to rotate, resulting in better force transmission and improved force transmission stability.

[0052] Specifically, in the embodiments of this application, the worm gear meshes with the turbine. The worm gear structure is a commonly used transmission component in the field and is widely used. The specific structure of the worm gear in the embodiments of this application will not be described in detail here.

[0053] In this embodiment, optionally, the transmission assembly includes a drive rod 41 and a first connecting rod 42, and the handle 20 includes a handle rod 21 and a connecting rod 22 connected at an angle. The drive rod 41 is connected to the crank-slider mechanism, the first connecting rod 42 is connected to both the drive rod 41 and the handle rod 21, and the connecting rod 22 is rotatably connected to the drive rod 41. The drive rod 41, the first connecting rod 42, the handle rod 21, and the connecting rod 22 form a four-bar linkage. Thus, the slider 33 of the crank-slider mechanism drives the drive rod 41 to move along the horizontal crank straight line 35. The drive rod 41 drives the first connecting rod 42 to rotate, and in turn drives the connecting rod 22 to move. The first connecting rod 42 and the connecting rod 22 then extend or retract the handle rod 21. The four-bar linkage structure of the drive rod 41, the first connecting rod 42, the handle rod 21, and the connecting rod 22 makes the transmission of the crank-slider mechanism to the handle 20 more stable and reliable, with better force transmission effect, so as to achieve a smoother extension or retraction of the handle 20.

[0054] Optionally, in this embodiment, the drive rod 41 is provided with an inclined surface 411, and the first connecting rod 42 includes a sliding part 421 and a rotating part 422 connected to the sliding part 421; the sliding part 421 is slidably connected to the inclined surface 411, and the rotating part 422 is rotatably connected to the handle 21. For example, the drive rod 41 has an inclined surface 411 near the first connecting rod 42. When the drive rod 41 moves linearly along a horizontal crank, it drives the first connecting rod 42 to slide along the inclined surface 411. The sliding part 421 and the rotating part 422 of the first connecting rod 42 can be connected at an angle, forming an L-shaped structure or a V-shaped structure, etc. In this embodiment, the specific types of the sliding part 421 and the rotating part 422 of the first connecting rod 42 are not limited.

[0055] In this embodiment of the application, for example, the inclination angle of the inclined plane 411 can be 60°, 55°, 65° or 70°, etc., and can be set according to actual needs. In this embodiment of the application, the specific value of the inclination angle of the inclined plane 411 is not limited.

[0056] Optionally, the transmission assembly further includes a second connecting rod 43, which is rotatably connected between the drive rod 41 and the connecting rod 22. The drive rod 41, the first connecting rod 42, the handle bar 21, the connecting rod 22, and the second connecting rod 43 form a five-bar linkage. In this way, the sliding element 33 of the crank-slider mechanism drives the drive rod 41 to move along the horizontal crank straight line 35. The drive rod 41 drives the first connecting rod 42 to rotate, and also drives the second connecting rod 43 to rotate. The second connecting rod 43 drives the connecting rod 22 to move, and the first connecting rod 42 and the connecting rod 22 drive the handle bar 21 to extend or retract. The five-bar linkage structure of the drive rod 41, the first connecting rod 42, the handle bar 21, the connecting rod 22, and the second connecting rod 43 facilitates a more stable and reliable transmission of the handle bar 20 according to the spatial layout, providing a better force transmission effect and allowing the handle bar 20 to extend or retract smoothly from the door.

[0057] For example, in this embodiment of the application, as shown in FIG1, one end of the drive rod 41 can be slidably connected to the first connecting rod 42 through the inclined surface 411, and the first connecting rod 42 can be rotatably connected to the handle rod 21 through a structure such as a rivet or screw. The other end of the drive rod 41 can be rotatably connected to the second connecting rod 43 through a structure such as a rivet or screw, and the second connecting rod 43 can be rotatably connected to the connecting rod 22 of the handle 20 through a structure such as a rivet or screw.

[0058] In this embodiment, the case where the number of second links 43 is one is shown. In addition, the number of second links 43 can also be two or three, etc. The number and size of the second links 43 can be set according to the spatial layout requirements and the size of the handle 20, etc. In this embodiment, the specific type and number of second links 43 are not limited.

[0059] In summary, the handle structure described in the embodiments of this application may include at least the following advantages:

[0060] In this embodiment, the handle structure includes: a driving component, a crank-slider mechanism, a transmission assembly, and a handle. The crank-slider mechanism is connected to the driving component, and the transmission assembly is connected to both the crank-slider mechanism and the handle. One end of the crank-slider mechanism is rotatably connected to the driving component, and the other end is connected to the transmission assembly. The crank-slider mechanism drives the transmission assembly to move, and the transmission assembly causes the handle to extend or retract. Thus, the driving component directly drives the crank-slider mechanism, which in turn drives the handle to extend or retract via the transmission assembly. Specifically, when the handle is needed, the driving component converts the rotational motion of the crank-slider mechanism into linear motion, for example, causing one end of the crank-slider mechanism connected to the transmission assembly to move horizontally to the right, thus moving the transmission assembly towards the outside of the vehicle and causing the transmission assembly to extend the handle. When the handle is not needed, the driving component converts the rotational motion of the crank-slider mechanism into linear motion, for example, causing one end of the crank-slider mechanism connected to the transmission assembly to move horizontally to the left, thus moving the transmission assembly towards the inside of the vehicle and causing the transmission assembly to extend the handle. In other words, by directly driving the crank-slider mechanism through a drive component, rotational motion is converted into linear reciprocating motion, which in turn drives the handlebar movement via a transmission assembly. This results in smoother handlebar extension and retraction, leading to better handlebar durability and improved NVH performance of the vehicle. This avoids the high motor speeds associated with using a two-stage worm gear drive system, reducing overall structural complexity, improving transmission efficiency, and lowering the risk of malfunctions and abnormal noises. It also avoids the high motor speeds and limitations of cam-based drive systems, which restrict large strokes and reduce machining precision requirements and wear on the transmission pairs.

[0061] This application also proposes a car door structure, which includes the aforementioned handle structure. The handle is disposed on the outer side of the car door and is used by a user to hold and open / close the car door.

[0062] The door structure described in this application embodiment may include at least the following advantages:

[0063] In this embodiment, the door structure includes the handle structure, which comprises a drive member, a crank-slider mechanism, a transmission assembly, and a handle. The crank-slider mechanism is connected to the drive member, and the transmission assembly is connected to both the crank-slider mechanism and the handle. One end of the crank-slider mechanism is rotatably connected to the drive member, and the other end is connected to the transmission assembly. The crank-slider mechanism drives the transmission assembly to move, and the transmission assembly extends or retracts the handle. Thus, the drive member directly drives the crank-slider mechanism, which in turn extends or retracts the handle via the transmission assembly. Specifically, when the handle is needed, the drive member converts the rotational motion of the crank-slider mechanism into linear motion, for example, causing one end of the crank-slider mechanism connected to the transmission assembly to move horizontally to the right, thus moving the transmission assembly towards the outside of the vehicle and extending the handle. When the handle is not needed, the drive member converts the rotational motion of the crank-slider mechanism into linear motion, for example, causing one end of the crank-slider mechanism connected to the transmission assembly to move horizontally to the left, thus moving the transmission assembly towards the inside of the vehicle and extending the handle. In other words, by directly driving the crank-slider mechanism through a drive component, rotational motion is converted into linear reciprocating motion, which in turn drives the handlebar movement via a transmission assembly. This results in smoother handlebar extension and retraction, leading to better handlebar durability and improved NVH performance of the vehicle. This avoids the high motor speeds associated with using a two-stage worm gear drive system, reducing overall structural complexity, improving transmission efficiency, and lowering the risk of malfunctions and abnormal noises. It also avoids the high motor speeds and limitations of cam-based drive systems, which restrict large strokes and reduce machining precision requirements and wear on the transmission pairs.

[0064] This application also provides a vehicle, which includes the aforementioned door structure or handle structure.

[0065] For example, in the embodiments of this application, the vehicle may include small cars, medium-sized cars, sedans, trucks, trailers, CDVs (Car Derived Vans), MPVs (multi-Purpose Vehicles), SUVs (Sport Utility Vehicles), etc. The specific type of vehicle is not limited in the embodiments of this application.

[0066] The vehicle described in this application embodiment may include at least the following advantages:

[0067] The vehicle includes the aforementioned door structure or handle structure. The door structure includes the handle structure, which comprises a drive component, a crank-slider mechanism, a transmission assembly, and a handle. The crank-slider mechanism is connected to the drive component, and the transmission assembly is connected to both the crank-slider mechanism and the handle. One end of the crank-slider mechanism is rotatably connected to the drive component, and the other end is connected to the transmission assembly. The crank-slider mechanism drives the transmission assembly, which in turn extends or retracts the handle. Thus, the drive component directly drives the crank-slider mechanism, which in turn extends or retracts the handle via the transmission assembly. Specifically, when the handle is needed, the drive component converts the rotational motion of the crank-slider mechanism into linear motion, for example, causing one end of the crank-slider mechanism connected to the transmission assembly to move horizontally to the right, moving the transmission assembly towards the outside of the vehicle, thereby extending the handle. When the handlebars are not needed, the drive unit converts rotational motion into linear motion by driving the crank-slider mechanism. For example, one end of the crank-slider mechanism connected to the transmission assembly moves horizontally to the left, then drives the transmission assembly towards the vehicle interior, causing the transmission assembly to extend the handlebars. In other words, by directly driving the crank-slider mechanism with the drive unit, rotational motion is converted into linear reciprocating motion, and the handlebars are moved via the transmission assembly, resulting in smoother extension and retraction of the handlebars. This improves the handlebars' durability and the vehicle's NVH performance. This avoids the high motor speeds associated with using a two-stage worm gear drive system, reduces overall structural complexity, improves transmission efficiency, and lowers the risk of malfunctions and abnormal noises. It also avoids the high motor speeds and limitations of using a cam structure for drive transmission, which restricts the movement of large strokes and reduces machining accuracy requirements and wear on the transmission pairs.

[0068] 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 this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Although embodiments of this application 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 this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A handle structure, characterized in that, The handle structure includes: a drive unit (10), a crank-slider mechanism, a transmission assembly, and a handle (20); The crank-slider mechanism is connected to the drive member (10), and the transmission assembly is connected to the crank-slider mechanism and the handle (20) respectively; One end of the crank-slider mechanism is rotatably connected to the drive member (10), and the other end of the crank-slider mechanism is connected to the transmission assembly. The crank-slider mechanism drives the transmission assembly to move, and the transmission assembly drives the handle (20) to extend or retract.

2. The handle structure according to claim 1, characterized in that, The crank-slider mechanism includes a rotating shaft (31), a rotating rod (32), and a sliding member (33); The rotating shaft (31) is connected to the output end of the driving member (10), the rotating rod (32) is rotatably connected to the rotating shaft (31) and the sliding member (33), and the sliding member (33) is connected to the transmission assembly; The drive shaft drives the rotating shaft (31) to rotate, the rotating shaft (31) drives the rotating rod (32) to rotate, and the rotating rod (32) drives the sliding member (33) to move in a straight line.

3. The handle structure according to claim 2, characterized in that, The center of rotation of the rotating shaft (31) around the driving member (10) is the crank rotation center (34), and the trajectory of the slider in linear motion is the crank straight line (35). The crank rotation center (34) and the crank straight line (35) are misaligned to form an offset crank slider mechanism.

4. The handle structure according to any one of claims 1-3, characterized in that, The handle structure also includes a worm gear assembly, which is connected to the drive unit (10) and the crank-slider mechanism respectively.

5. The handle structure according to claim 4, characterized in that, The worm gear assembly includes a turbine and a worm connected to each other, the worm being connected to the drive member (10), and the turbine being connected to the crank-slider mechanism.

6. The handle structure according to any one of claims 1-5, characterized in that, The transmission assembly includes a drive rod (41) and a first connecting rod (42), and the handle (20) includes a handle rod (21) and a connecting rod (22) connected at an angle; The drive rod (41) is connected to the crank-slider mechanism, the first connecting rod (42) is connected to the drive rod (41) and the handle (21) respectively, and the connecting rod (22) is rotatably connected to the drive rod (41); The drive rod (41), the first connecting rod (42), the handle rod (21), and the connecting rod (22) form a four-bar linkage structure.

7. The handle structure according to claim 6, characterized in that, The drive rod (41) is provided with an inclined surface (411), and the first connecting rod (42) includes a sliding part (421) and a rotating part (422) connected to the sliding part (421); The sliding part (421) is slidably connected to the inclined surface (411), and the rotating part (422) is rotatably connected to the handle (21).

8. The handle structure according to claim 6, characterized in that, The transmission assembly further includes a second link (43), which is rotatably connected between the drive rod (41) and the connecting rod (22); The drive rod (41), the first connecting rod (42), the handle rod (21), the connecting rod (22), and the second connecting rod (43) form a five-bar linkage structure.

9. A door structure, characterized in that, The door structure includes the handle structure as described in any one of claims 1-8.

10. A vehicle, characterized in that, The vehicle includes the door structure as described in claim 9, or the handle structure as described in any one of claims 1-8.

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