Transmission assembly, vehicle door handle, vehicle door, and vehicle

Abstract

A transmission assembly, a vehicle door handle, a vehicle door, and a vehicle. The transmission mechanism comprises: a transmission shaft, configured to be mounted on a base; a first lever, mounted on the transmission shaft; a rotating assembly, configured to drive, by means of the first lever during the action of an external force, the transmission shaft to rotate; and a first reset member, configured to drive, when the external force is removed, the transmission shaft to rotate until the first lever abuts against the base.

Description

Transmission assembly, vehicle door handle, vehicle door and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on October 31, 2023, with application number 202322945187.X and titled “Transmission mechanism, vehicle door handle, vehicle door and vehicle,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the technical field of vehicle door handles, and in particular, to a transmission assembly, a vehicle door handle, a vehicle door, and a vehicle. Background Art

[0004] A vehicle door handle is a component that is installed on a vehicle door for opening the door, and generally includes a mounting base, a handle, and a transmission mechanism.

[0005] In the related art, when the handle is pulled to unlock the car door, the specific unlocking process is: the handle drives the connecting rod to move, and then the connecting rod drives the rotating structure to pull the Bowden cable (pull cable) to unlock the car door. The Bowden cable is a flexible power transmission element, generally including multiple strands of steel wire located on the inside and a plastic sleeve wrapped around the outside of the steel wire. Since the steel wire needs to move relative to the plastic sleeve when the unlocking function is realized, there needs to be a motion fit gap between the two. When in a humid environment or a car wash environment, the motion fit gap is prone to water ingress. After water ingress, when the vehicle reaches a low temperature environment, the accumulated water in the motion fit gap will freeze, causing the steel wire and the plastic sleeve to be frozen into one, unable to produce relative movement, so that the vehicle door handle cannot open the door.

[0006] Summary of the Invention

[0007] An object of the present disclosure is to provide a transmission assembly, a vehicle door handle, a vehicle door, and a vehicle to at least partially solve the problems existing in the related art.

[0008] In order to achieve the above-mentioned objectives, the present disclosure provides a transmission assembly for a vehicle door handle, wherein the transmission assembly includes: a transmission shaft for being rotatably mounted on a base of the vehicle door handle; a first lever mounted on the transmission shaft; a rotating assembly for driving the transmission shaft to rotate via the first lever when an external force acts; and a first reset member for driving the transmission shaft to rotate until the first lever abuts against the base when the external force is removed.

[0009] Optionally, the first reset member is a first torsion spring, which is sleeved on the transmission shaft, one end of the first torsion spring is used to connect to the base, and the other end of the first torsion spring is connected to the transmission shaft.

[0010] Optionally, the rotating assembly includes: a first pin shaft, which is used to be installed on the base; and a rotating block, which is rotatably installed on the first pin shaft, and is used to rotate around the first pin shaft when the external force acts, and a second shift rod is formed on the rotating block, and the second shift rod is used to contact and cooperate with the first shift rod.

[0011] Optionally, the rotating assembly further comprises a second reset member connected to the rotating block, for driving the rotating block to reset when the external force is removed.

[0012] Optionally, the second reset member is a second torsion spring, one end of the second torsion spring is connected to the first pin shaft, and the other end of the second torsion spring is connected to the rotating block.

[0013] Optionally, the rotating block includes two first vertical plates spaced apart from each other, and the two first vertical plates are respectively sleeved on the first pin shaft; the second torsion spring is sleeved on the first pin shaft, and the second torsion spring is located between the two first vertical plates, one end of the second torsion spring is fixed to the first pin shaft, and the other end of the second torsion spring is fixed to any one of the first vertical plates.

[0014] Optionally, the rotating block further includes a transverse plate connected between the two first vertical plates and a second vertical plate connected to the transverse plate, wherein the second vertical plate is connected to a side of the transverse plate facing away from the first vertical plate, and the second vertical plate is used to be connected to the handle of the vehicle door handle.

[0015] Optionally, the horizontal plate, the first vertical plate and the second vertical plate are integrally formed.

[0016] Optionally, a push rod assembly is further included, wherein the push rod assembly is used to be connected between the transmission shaft and the lock core of the vehicle door handle, and the push rod assembly controls the lock core under the rotation drive of the transmission shaft.

[0017] Optionally, the push rod assembly includes a rocker arm mounted on the transmission shaft, and a rod member hinged to one end of the rocker arm away from the transmission shaft.

[0018] Optionally, the first shift rod and the push rod assembly are respectively installed near the end of the transmission shaft, and the transmission mechanism also includes a first convex ring sleeved on the transmission shaft and a second convex ring sleeved on the transmission shaft, and the first convex ring and the second convex ring are located between the first shift rod and the push rod assembly.

[0019] According to a second aspect of the present disclosure, a vehicle door handle is provided, comprising a base, a handle and the above-mentioned transmission mechanism, wherein the transmission shaft is rotatably mounted on the base, and the handle is transmission-connected to the rotating assembly.

[0020] Optionally, the base has a accommodating cavity, the accommodating cavity is used to accommodate the handle, and the transmission shaft is located outside the accommodating cavity, wherein the base is formed with an avoidance gap, and the avoidance gap is used to allow the first shift rod to extend into the accommodating cavity.

[0021] Optionally, the outer wall of the accommodating cavity is separated by a first partition and a second partition at both ends, and the vehicle door handle also includes a second pin shaft, which is rotatably arranged between the first partition and the second partition, and the second pin shaft passes through the first partition and the second partition, and the transmission shaft is constructed as a hollow cylinder, and the transmission shaft is sleeved on the outer periphery of the second pin shaft.

[0022] Optionally, the first partition and the second partition are respectively provided with a through hole, which corresponds to the second pin shaft. The outer wall of the accommodating cavity is also provided with a limiting member, which is located between the first partition and the second partition. The limiting member allows the axis of the transmission shaft to coincide with the axis of the through hole when the transmission shaft moves along the first radial direction until it is restricted by the limiting member.

[0023] Optionally, the limiting member includes a third partition and a fourth partition, the third partition forms a first recess for accommodating the transmission shaft, and the fourth partition forms a second recess for accommodating the transmission shaft, the first recess and the second recess are used to limit the transmission shaft at both ends of a second radial direction, wherein the first radial direction and the second radial direction are perpendicular.

[0024] Optionally, there are: a first state, the handle is hidden in the accommodating cavity; a second state, the handle is translated and extended out of the accommodating cavity; and a third state, one end of the handle can be rotated around the other end of the handle to unlock the vehicle door, wherein, in the first state, the first lever and the rotating assembly are separated.

[0025] According to a third aspect of the present disclosure, a vehicle door is provided, comprising the above-mentioned vehicle door handle.

[0026] According to a fourth aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned vehicle door.

[0027] Through the above technical solution, when the vehicle door handle needs to be unlocked, an external force can be applied to the rotating assembly, causing it to rotate the drive shaft via the first lever. The rotation of the drive shaft then drives the push rod assembly to control the vehicle door handle's lock cylinder to open the door. When the external force is removed, the first reset member can drive the drive shaft to rotate in the opposite direction until the first lever abuts the base, ensuring the position accuracy of the first lever in the initial position. This transmission mechanism eliminates the traditional Bowden cable (comprising a cable and a plastic sleeve that move relative to each other), effectively preventing the problem of water freezing between the cable and the plastic sleeve, which could cause the vehicle door handle unlocking function to fail.

[0028] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0030] FIG1 is a schematic diagram of an exemplary transmission assembly according to the present disclosure, wherein the transmission assembly corresponds to a hidden state of a handle of a vehicle door handle;

[0031] FIG2 is a schematic diagram of an exemplary transmission assembly according to the present disclosure, wherein the transmission assembly corresponds to a handle of a vehicle door handle in a flat-out state;

[0032] FIG3 is a schematic diagram of an exemplary transmission assembly according to the present disclosure, wherein the transmission assembly corresponds to an unlocked state of a handle of a vehicle door handle;

[0033] FIG4 is a schematic diagram of a vehicle door handle in a first state according to an exemplary embodiment of the present disclosure;

[0034] FIG5 is a schematic diagram of a vehicle door handle in a second state according to an exemplary embodiment of the present disclosure;

[0035] FIG6 is a schematic diagram of a vehicle door handle in a third state according to an exemplary embodiment of the present disclosure;

[0036] FIG7 is a partial enlarged view of a vehicle door handle in a first state according to an exemplary embodiment of the present disclosure;

[0037] FIG8 is a partial enlarged view of the vehicle door handle shown in FIG7 from another angle;

[0038] FIG9 is a partial enlarged view of a vehicle door handle in a third state according to an exemplary embodiment of the present disclosure;

[0039] FIG10 is a partial enlarged view of the vehicle door handle shown in FIG9 from another angle;

[0040] FIG11 is a schematic back side view of a vehicle door handle in a first state according to an exemplary embodiment of the present disclosure;

[0041] FIG12 is a schematic back view of the second state of the vehicle door handle shown in FIG11;

[0042] FIG13 is a schematic back side view of a vehicle door handle in another second state according to an exemplary embodiment of the present disclosure;

[0043] FIG14 is a schematic diagram of a vehicle door according to an exemplary embodiment of the present disclosure;

[0044] FIG15 is a schematic diagram of a vehicle according to an exemplary embodiment of the present disclosure.

[0045] Explanation of Reference Numerals 1-transmission assembly; 2-vehicle door handle; 3-vehicle door; 4-vehicle; 110-transmission shaft; 120-first lever; 130-push rod assembly; 131-rocker arm; 132-rod member; 140-first return member; 141-first torsion spring; 150-second pin; 151-shaft cap; 161-first protruding ring; 162-second protruding ring; 162-second protruding ring; 210-base; 211-accommodating chamber; 212-avoidance gap; 220-handle; 230-connecting plate; 300-rotating assembly; 310-first pin; 320-rotating block; 321-horizontal plate; 322-first vertical plate; 323- Second vertical plate; 330-second lever; 340-second reset member; 341-second torsion spring; 410-first through hole; 420-second through hole; 430-through hole; 500-limiting member; 510-first partition; 520-second partition; 530-third partition; 531-first recess; 540-fourth partition; 541-second recess; 610-first shielding member; 620-second shielding member; 700-pushing member; 800-long connecting rod. DETAILED DESCRIPTION

[0046] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0047] In the present disclosure, unless otherwise stated, the directional words used, such as "inside" and "outside", may be defined based on the actual use direction of the relevant components, or may be based on the structure itself. For example: the transmission assembly is located "outside" of the accommodating cavity, which means that the transmission assembly is arranged outside the accommodating space of the accommodating cavity itself, for example, on the outside of the side wall of the accommodating cavity; the "outer wall" of the accommodating cavity is provided with a first partition and a second partition located at both ends of the transmission shaft, which means that the first partition and the second partition are arranged on the outer wall surface of the accommodating cavity, that is, located outside the accommodating cavity; the handle is hidden "inside" the accommodating cavity, which means that the handle is hidden on the inside of the accommodating cavity.

[0048] In addition, in this disclosure, the terms "first", "second", etc. are used to distinguish one element from another and do not have order or importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0049] First, to facilitate understanding of the technical solution, it is necessary to explain that the vehicle door handle provided herein has three states: a concealed state ( FIG. 4 ), a horizontally extended state ( FIG. 5 ), and an unlocked state ( FIG. 6 ). How the vehicle door handle transitions between these three states will be described in detail below. Accordingly, the transmission assembly within the vehicle door handle also corresponds to three states, specifically the three states shown in FIG. 1-3 , with FIG. 1 corresponding to the state in FIG. 4 , FIG. 2 corresponding to the state in FIG. 5 , and FIG. 3 corresponding to the state in FIG. 6 . The process described below of the rotation assembly 300 in the transmission assembly driving the transmission shaft 110 via the first lever 120 refers to the transition from the horizontally extended state to the unlocked state. During the drive process from the concealed state to the horizontally extended state, the rotation assembly 300 and the first lever 120 do not interact, as will be described in detail below.

[0050] 1 to 10 , the present disclosure exemplarily shows a transmission assembly 1 for a vehicle door handle, the transmission assembly 1 comprising a transmission shaft 110 rotatably mounted on a base 210 of the vehicle door handle, a first lever 120 mounted on the transmission shaft 110, a rotating assembly 300 for driving the transmission shaft 110 to rotate via the first lever 120 when an external force acts, and a first reset member 140 for driving the transmission shaft 110 to rotate until the first lever 120 abuts against the base 210 when the external force is removed. Here, the reset rotation of the transmission shaft 110 when the external force is removed is opposite to the unlocking rotation of the transmission shaft 110 driven by the rotating assembly 300, so that the transmission assembly 1 can automatically reset to the initial state after the vehicle door handle is unlocked for the next unlocking. The present disclosure does not limit the structure of the first reset member 140, which can be a first torsion spring described below, etc. In an embodiment of the present disclosure, the first lever 120 can be detachably mounted on the transmission shaft 110 via a snap-fit ​​structure. In other embodiments, the first lever 120 can also be integrally formed with the transmission shaft 110. The "external force" here can be the pulling force provided by manually pulling the handle 220, or can also be driven by a motor, which is not limited in the present disclosure.

[0051] The present disclosure does not limit how the transmission shaft 110 is rotatably mounted on the base 210; it can be achieved by using a plurality of partitions and a second pin 150, which will be described below. Alternatively, it can be rotatably mounted on the base 210 using a bearing seat and a bearing. It should be noted that the term "rotation" herein refers to the rotational movement of the transmission shaft 110 about its axis.

[0052] The present disclosure does not limit the specific structure of the rotating assembly 300. The rotating assembly 300 can be connected to the handle 220 through a linkage member described below to follow the movement of the handle 220. Alternatively, the rotating assembly 300 can also be directly connected to the handle 220.

[0053] By using the above technical solution, when the vehicle door handle needs to be unlocked, an external force can be applied to the rotating assembly 300, causing it to rotate the transmission shaft 110 via the first lever 120, thereby driving the vehicle door handle lock cylinder to open the door. When the external force is removed, the first reset member 140 can drive the transmission shaft 110 to rotate in the opposite direction until the first lever 120 abuts the base 210, ensuring the positional accuracy of the first lever 120 in the initial position and preventing mis-locking when moving from the hidden state to the horizontally extended state due to inaccurate positioning. In addition, compared to separately adding a retaining member to ensure the positional accuracy of the first lever 120 in the initial position, this design structure is simpler and occupies less space. This transmission assembly 1 eliminates the traditional Bowden cable (including the cable and plastic sleeve that move relative to each other), effectively preventing the problem of water freezing between the cable and the plastic sleeve, which can cause the vehicle door handle unlocking function to fail.

[0054] 7 and 9 , in an embodiment of the present disclosure, the first reset member 140 can be a first torsion spring 141, which can be sleeved on the transmission shaft 110, one end of the first torsion spring 141 can be used to connect to the base 210, and the other end of the first torsion spring 141 can be connected to the transmission shaft 110, so as to drive the first torsion spring 141 to rotate and deform to store force when the transmission shaft 110 rotates. After the external force is removed, the first torsion spring 141 drives the transmission shaft 110 to rotate in the opposite direction and reset under the action of the elastic force. In the embodiments shown in FIG7 and FIG9 , the first torsion spring 141 can be set at a position near the end of the transmission shaft 110. In addition, in some other embodiments, the first torsion spring 141 can be set at a central position of the transmission shaft 110, and the present disclosure does not limit this.

[0055] 1 to 3 , in an embodiment of the present disclosure, the rotating assembly 300 may include: a first pin 310 mounted on the base 210; and a rotating block 320 rotatably mounted on the first pin 310 and configured to rotate about the first pin 310 when an external force is applied. A second lever 330 may be formed on the rotating block 320, configured to engage with the first lever 120. In the transition from the hidden state of FIG. 1 to the flattened state of FIG. 2 , no driving relationship is established between the first lever 120 and the second lever 330. That is, in the hidden state shown in FIG. 1 , the first lever 120 and the second lever 330 may be spaced apart. During the transition from FIG. 1 to FIG. 2 , the second lever 330 gradually approaches the first lever 120. When the second lever 120 and the second lever 330 reach the second state, they are in contact with each other. During the movement from FIG. 2 to FIG. 3 , the first shifting rod 120 and the second shifting rod 330 begin to engage with each other, that is, the second shifting rod 330 pushes the first shifting rod 120 to drive the transmission shaft 110 to move.

[0056] The present disclosure does not limit the connection relationship between the second shifting rod 330 and the rotating block 320 , and the two may be detachably connected via a snap-fit ​​structure, or may be integrally formed.

[0057] In order to reset the rotating block 320 from the unlocked state shown in Figure 3 to the hidden state shown in Figure 1 or the flat-out state shown in Figure 2 when the external force is removed, referring to Figures 1-3, in an embodiment of the present disclosure, the rotating assembly 300 may further include a second reset member 340 connected to the rotating block 320, which is used to drive the rotating block 320 to reset when the external force is removed.

[0058] The present disclosure does not limit the specific structure of the second reset member 340. For example, in an embodiment of the present disclosure, the second reset member 340 can be a second torsion spring 341, one end of the second torsion spring 341 can be connected to the first pin shaft 310, and the other end of the second torsion spring 341 can be connected to the rotating block 320, so that when the rotating block 320 rotates, the second torsion spring 341 can follow and accumulate force, and drive the reset when the external force is removed.

[0059] The present disclosure does not limit the specific structure of the rotating block 320. Referring to Figures 1-3, in an embodiment of the present disclosure, the rotating block 320 may include two first vertical plates 322 spaced apart from each other. The two first vertical plates 322 may be respectively mounted on the first pin 310. Specifically, the two first vertical plates 322 may each be provided with a first through hole 410, and the first pin 310 may sequentially pass through the two first through holes 410. The second torsion spring 341 may be mounted on the first pin 310 and located between the two first vertical plates 322. In this case, one end of the second torsion spring 341 may be fixed to the first pin 310, and the other end of the second torsion spring 341 may be fixed to either first vertical plate 322. Compared to placing the second torsion spring 341 outside the rotating block 320, that is, at the end of the first pin 310, the present disclosure arranges the two first risers 322 spaced apart from each other and places the second torsion spring 341 between the two first risers 322. This provides a larger installation space for the second torsion spring 341, allowing for the installation of a second torsion spring 341 with a longer wire and a larger diameter, thereby effectively increasing the return torque and lifespan of the second torsion spring 341. Furthermore, in some other embodiments, the second torsion spring 341 may be fixed at one end to the base 210 and at the other end to the rotating block 320.

[0060] Referring to Figures 1-3, in an embodiment of the present disclosure, the rotating block 320 may further include a transverse plate 321 connected between two first vertical plates 322 and a second vertical plate 323 connected to the transverse plate 321. The second vertical plate 323 may be connected to a side of the transverse plate 321 facing away from the first vertical plates 322. The second vertical plate 323 is configured to connect to the handle 220 of the vehicle door handle. With this design, when the vehicle door needs to be unlocked, applying an external force to the handle 220 causes the entire rotating block 320 to rotate via the second vertical plate 323. The present disclosure does not limit the connection method between the second vertical plate 323 and the handle 220. For example, in some embodiments, a second through hole 420 may be defined in the second vertical plate 323, and the second through hole 420 and the handle 220 may be connected via a linkage described below. The details will be described in detail below and will not be repeated here.

[0061] Furthermore, the present disclosure does not limit the number of second risers 323. For example, in the embodiment shown in Figures 1-3, two second risers 323 can be provided, spaced apart from each other. This design improves the strength of the rotating block 320 (torque transmission via the two second risers 323) and extends its service life. Furthermore, this H-shaped structure is lighter than a solid block, contributing to weight reduction for the vehicle or door.

[0062] The present disclosure does not limit the connection method of the horizontal plate 321, the first vertical plate 322, and the second vertical plate 323. For example, in an embodiment of the present disclosure, the horizontal plate 321, the first vertical plate 322, and the second vertical plate 323 can be integrally formed to reduce assembly difficulty. In addition, in other embodiments, the horizontal plate 321, the first vertical plate 322, and the second vertical plate 323 can also be detachably assembled.

[0063] 1-10 , in an embodiment of the present disclosure, the transmission assembly 1 may further include a push rod assembly 130, which is connected between the transmission shaft 110 and the lock cylinder of the vehicle door handle. The push rod assembly 130 controls the lock cylinder under the rotation of the transmission shaft 110. In this case, the lock cylinder may have a self-locking function so that the lock cylinder is automatically locked after the push rod assembly 130 is reset.

[0064] The present disclosure does not limit the push rod assembly 130. For example, referring to Figures 1-3, in an embodiment of the present disclosure, the push rod assembly 130 may include a rocker arm 131 mounted on the drive shaft 110, and a rod 132 hinged to the end of the rocker arm 131 distal from the drive shaft 110. With this design, when the drive shaft 110 rotates, the rocker arm 131 rotates with it and drives the rod 132 to move, thereby controlling the lock cylinder to unlock. The movement of the rod 132 can be designed to adapt to the structure of the lock cylinder. Direct drive from the rocker arm 131 and assistance from other limiting structures can achieve the desired motion pattern, such as simultaneous rotational and linear motion. Furthermore, in other embodiments, the push rod assembly 130 may include only a single curved rod. The specific design can be adapted to the lock cylinder unlocking method and the positional relationship between the drive shaft 110 and the lock cylinder. The movement of the push rod assembly 130 can be linear, rotational, or a combination of linear and rotational, as long as it can effectively unlock the lock cylinder.

[0065] In the embodiment of the present disclosure, the rocker arm 131 can be integrally formed with the transmission shaft 110, or can be assembled on the transmission shaft 110. The rod 132 can be bent as shown in FIG1 , or can be a straight rod, which is not limited in the present disclosure.

[0066] 1-3 , in an embodiment of the present disclosure, the first lever 120 and the push rod assembly 130 can be respectively mounted near the ends of the transmission shaft 110. The transmission assembly 1 can further include a first protruding ring 161 and a second protruding ring 162 sleeved on the transmission shaft 110, with the first protruding ring 161 and the second protruding ring 162 being located between the first lever 120 and the push rod assembly 130. With this design, the first protruding ring 161 and the second protruding ring 162 can serve as gripping positions for a robot during assembly. Furthermore, the first protruding ring 161 and the second protruding ring 162 can prevent accumulated water (e.g., rainwater or snow) in the middle of the transmission shaft 110 from flowing toward the rocker arms 131 or the first lever 120 at either end, thereby freezing and causing unlocking failure. Here, it needs to be explained that the accumulated water here may flow in through the gap between the window glass and the door. Referring to Figures 4 to 6, the positions corresponding to the rocker arm 131 and the first lever 120 may be provided with a first water baffle 610 and a second water baffle 620, while the central position of the drive shaft 110 cannot be provided with a water baffle due to interference caused by the need to install other components, resulting in water accumulation.

[0067] 4-10 , according to a second aspect of the present disclosure, a vehicle door handle 2 is provided, comprising a base 210, a handle 220, and the aforementioned transmission assembly 1, wherein a transmission shaft 110 is rotatably mounted on the base 210, and the handle 220 is transmission-connected to a rotating assembly 300. Here, the handle 220 refers to the external handle of the vehicle door, which can be unlocked by pulling the handle 220. The present disclosure does not limit the transmission connection between the handle 220 and the rotating assembly 300; for example, a linkage may be provided between the two.

[0068] The present disclosure does not limit the specific form of the linkage member, which can be the connecting plate 230 shown in Figures 8 and 10, or the long connecting rod 800 shown in Figure 13, as long as it can transmit the movement of the handle 220 to the rotating assembly 300.

[0069] Referring to Figures 4-10, in an embodiment of the present disclosure, the base 210 may have a housing cavity 211 for accommodating the handle 220. The transmission shaft 110 may be located outside the housing cavity 211. This design facilitates assembly and maintenance of the transmission assembly 1. Furthermore, the base 210 may be formed with a relief notch 212 for allowing the first lever 120 to extend into the housing cavity 211. The provision of the relief notch 212 allows power transmission between the external transmission assembly 1 and the internal rotating assembly 300. Furthermore, the provision of the relief notch 212 also serves as a positioning mechanism during assembly of the transmission assembly 1, preventing axial misalignment. 7 , a protrusion may be provided on the top of the avoidance gap 212 for the first lever 120 to abut against the base 210 , and the protrusion may be provided with a shock-absorbing pad.

[0070] 7 and 9 , in an embodiment of the present disclosure, the outer wall of the accommodating cavity 211 may be separated by a first partition 510 and a second partition 520. The vehicle door handle may further include a second pin 150, which is rotatably disposed between the first and second partitions 510, 520 and may penetrate the first and second partitions 510, 520. The transmission shaft 110 may be configured as a hollow cylinder and sleeved around the outer circumference of the second pin 150. With this design, the transmission shaft 110 can be fixedly connected to the second pin 150, thereby enabling the transmission shaft 110 to rotate synchronously with the base 210 when a force is applied to the transmission shaft 110. Furthermore, in other embodiments, the second pin 150 may be fixed to the base 210, in which case the transmission shaft 110 is configured to rotate relative to the second pin 150. In order to prevent the second pin shaft 150 from moving in the axial direction, shaft caps 151 can be provided at both ends of the second pin shaft 150, and the size of the shaft caps 151 is larger than the through hole 430 mentioned below, thereby preventing the second pin shaft 150 from moving in the axial direction. For the convenience of installation, the shaft cap 151 at at least one end is configured to be detachably connected to the end of the second pin shaft 150.

[0071] In order to allow the second pin shaft 150 to pass through the first partition plate 510 and the second partition plate 520, referring to Figures 7 and 9, in the embodiment of the present disclosure, the first partition plate 510 and the second partition plate 520 can be respectively provided with a through hole 430, and the through hole 430 corresponds to the second pin shaft 1500. The outer wall of the accommodating cavity 211 can also be provided with a limiting member 500, and the limiting member 500 is located between the first partition plate 510 and the second partition plate 520. The limiting member 500 makes the axis of the transmission shaft 110 coincide with the axis of the through hole 430 when the transmission shaft 110 moves along the first radial direction until it is restricted by the limiting member 500 (to facilitate the second pin shaft 150 to pass through the through hole 430 and the transmission shaft 110). The first radial direction herein refers to the direction of the corresponding arrows in FIG. 7 and FIG. 9 , i.e., the transmission shaft 110 is installed on the limiting member from the outside toward the inside of the drawings. In other words, the transmission shaft 110 is installed on the side of the base 210 from a position away from the base 210 toward a position close to the base 210. When the transmission shaft 110 is installed in place, i.e., when it is restricted by the limiting member 500, the axis of the transmission shaft 110 coincides with the axis of the through hole 430 so that the second pin 150 can pass through the two through holes 430 and the center hole portion of the transmission shaft 110. This design facilitates assembly without the need to manually align the transmission shaft 110 with the through hole 430, simplifying the operation and reducing the difficulty of the assembly process.

[0072] The present disclosure does not limit the specific structure of the limiting member 500. Referring to Figures 7 and 9, the limiting member 500 may include a third partition plate 530 and a fourth partition plate 540. The third partition plate 530 may form a first recess 531 for accommodating the transmission shaft 110, and the fourth partition plate 540 may form a second recess 541 for accommodating the transmission shaft 110. The first recess 531 and the second recess 541 may be used to limit the transmission shaft 110 at both ends of the second radial direction, wherein the first radial direction and the second radial direction are perpendicular. Referring to Figures 7 and 9, the second radial direction corresponds to the direction of the corresponding arrow in the figure, that is, the height direction in the figure. With this design, when assembling the transmission shaft 110, it can be installed into the first recess 531 and the second recess 541 along the first radial direction. At this time, the transmission shaft 110 is limited by the first recess 531 and the second recess 541 in the height direction and the direction close to the base 210.

[0073] The present disclosure does not limit the structure of the third partition 530 and the fourth partition 540. For example, in the embodiments shown in Figures 7 and 9, the third partition 530 and the fourth partition 540 can be respectively constructed in an L-shape to form an "angle space" for accommodating the drive shaft 110, and the two limit the drive shaft 110 in opposite directions in the second radial direction. Specifically, when the drive shaft 110 is installed in the "angle space" between the third partition 530 and the fourth partition 540, the third partition 530 can limit the movement of the drive shaft 110 in one direction of the second radial direction, and the fourth partition 540 can limit the movement of the drive shaft 110 in the other direction of the second radial direction. The cooperation of the two can limit the movement of the drive shaft 110 in the second radial direction. In addition, in some other embodiments, the third partition 530 and the fourth partition 540 can respectively have openings facing away from the base 210 to respectively limit the drive shaft 110 in both directions in the second radial direction. In an embodiment of the present disclosure, in order to prevent the transmission shaft 110 from disengaging from the first recess 531 and the second recess 541 in a direction opposite to the installation direction, one of the third partition plate 530 and the fourth partition plate 540 for supporting the transmission shaft 110 on the lower side can be formed with a recessed structure so that the transmission shaft 110 can be fixed in the first radial direction.

[0074] As described above, in the embodiment of the present disclosure, the vehicle door handle 2 can have: a first state, the handle 220 is hidden in the accommodating cavity 211, corresponding to Figures 4, 7-8, in which the handle 220 can be completely accommodated in the accommodating cavity 211, that is, its end face does not protrude from the surface of the vehicle door; a second state, the handle 220 is translated and extended out of the accommodating cavity 211, corresponding to Figure 5; and a third state, one end of the handle 220 can be rotated around the other end of the handle 220 to unlock the vehicle door, corresponding to Figures 6, 9-10, wherein, in the first state, the first lever 120 and the rotating assembly 300 are separated, so that when the vehicle door handle moves from the first state to the second state, the first lever 120 will not be driven to drive the drive shaft 110 to rotate, thereby preventing mis-locking.

[0075] The present disclosure does not limit how the vehicle door handle 2 moves from the first state to the second state; it can be electrically or manually driven. For example, in the embodiment shown in FIG11 (electrically driven), a motor (not shown) can drive the pusher 700 to move. The pusher 700, through the rocker arm 131 and the connecting plate 230, drives the handle 220 to extend horizontally to the state shown in FIG12 . In the embodiment shown in FIG13 , the motor can directly drive the rocker arm 131 to move, which pushes the handle 220. The handle 220 extends horizontally under the action of other limiting structures. The handle 220 can also drive the long connecting rod 800 during the extension process, and the movement of the long connecting rod 800 can simultaneously drive the rotation assembly 300. During the movement of the vehicle door handle from the first state to the second state, the linkage can drive the second lever 330 to move into contact with the first lever 120, thereby facilitating the movement of the first lever 120 by the second lever 330 from the second state to the third state.

[0076] 14 , according to a third aspect of the present disclosure, a vehicle door 3 is provided, comprising the vehicle door handle 2 described above. Since the vehicle door 3 has all the beneficial effects of the vehicle door handle 2 described above, they will not be described in detail here.

[0077] 15 , according to a fourth aspect of the present disclosure, a vehicle 4 is provided, comprising the above-mentioned vehicle door 3 . Since the vehicle 4 has all the beneficial effects of the above-mentioned vehicle door 3 , they will not be described in detail here.

[0078] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0079] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0080] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A transmission assembly (1) for a vehicle door handle, characterized in that: The transmission assembly comprises: A transmission shaft (110) adapted to be rotatably mounted on a base (210) of a vehicle door handle; A first shifting rod (120) mounted on the transmission shaft (110); A rotating assembly (300) is used to drive the transmission shaft (110) to rotate via the first lever (120) when an external force acts; and The first restoring member (140) is used to drive the transmission shaft (110) to rotate until the first shifting rod (120) abuts against the base (210) when the external force is removed.

2. The transmission assembly (1) according to claim 1, characterized in that: The first reset member (140) is a first torsion spring (141), the first torsion spring (141) is sleeved on the transmission shaft (110), one end of the first torsion spring (141) is used to connect to the base (210), and the other end of the first torsion spring (141) is connected to the transmission shaft (110).

3. The transmission assembly (1) according to claim 1 or 2, characterized in that: The rotating assembly (300) comprises: A first pin (310) for mounting on the base (210); and The rotating block (320) is rotatably mounted on the first pin shaft (310) and is used to rotate around the first pin shaft (310) when the external force acts. A second lever (330) is formed on the rotating block (320), and the second lever (330) is used to contact and cooperate with the first lever (120).

4. The transmission assembly (1) according to claim 3, characterized in that: The rotating assembly (300) further comprises a second reset member (340) connected to the rotating block (320) and used for driving the rotating block (320) to reset when the external force is removed.

5. The transmission assembly (1) according to claim 4, characterized in that: The second reset member (340) is a second torsion spring (341), one end of the second torsion spring (341) is connected to the first pin shaft (310), and the other end of the second torsion spring (341) is connected to the rotating block (320).

6. The transmission assembly (1) according to claim 5, characterized in that: The rotating block (320) comprises two first vertical plates (322) spaced apart from each other, and the two first vertical plates (322) are respectively sleeved on the first pin shaft (310); the second torsion spring (341) is sleeved on the first pin shaft (310), and the second torsion spring (341) is located between the two first vertical plates (322), one end of the second torsion spring (341) is fixed to the first pin shaft (310), and the other end of the second torsion spring (341) is fixed to any one of the first vertical plates (322).

7. The transmission assembly (1) according to claim 6, characterized in that: The rotating block (320) further comprises a transverse plate (321) connected between the two first vertical plates (322) and a second vertical plate (323) connected to the transverse plate (321), wherein the second vertical plate (323) is connected to a side of the transverse plate (321) facing away from the first vertical plates (322), and the second vertical plate (323) is used to be connected to the handle (220) of the vehicle door handle.

8. The transmission assembly (1) according to claim 7, characterized in that: The transverse plate (321), the first vertical plate (322) and the second vertical plate (323) are integrally formed.

9. The transmission assembly (1) according to any one of claims 1 to 8, characterized in that: It also includes a push rod assembly (130), which is used to be connected between the transmission shaft (110) and the lock core of the vehicle door handle, and the push rod assembly (130) controls the lock core under the rotation drive of the transmission shaft (110).

10. The transmission assembly (1) according to claim 9, characterized in that: The push rod assembly (130) comprises a rocker arm (131) mounted on the transmission shaft (110), and a rod member (132) hinged to an end of the rocker arm (131) away from the transmission shaft (110).

11. The transmission assembly (1) according to claim 9 or 10, characterized in that: The first shift rod (120) and the push rod assembly (130) are respectively mounted at positions close to the end of the transmission shaft (110); the transmission assembly (1) further comprises a first convex ring (161) sleeved on the transmission shaft (110) and a second convex ring (162) sleeved on the transmission shaft (110); the first convex ring (161) and the second convex ring (162) are located between the first shift rod (120) and the push rod assembly (130).

12. A vehicle door handle (2), characterized in that: It comprises a base (210), a handle (220) and the transmission assembly (1) as described in any one of claims 1 to 11, wherein the transmission shaft (110) is rotatably mounted on the base (210), and the handle (220) is transmission-connected to the rotating assembly (300).

13. The vehicle door handle (2) according to claim 12, characterized in that The base (210) has a receiving cavity (211), the receiving cavity (211) is used to receive the handle (220), the transmission shaft (110) is located outside the receiving cavity (211), wherein the base (210) is formed with an avoidance notch (212), the avoidance notch (212) is used to allow the first lever (120) to extend into the receiving cavity (211).

14. The vehicle door handle (2) according to claim 13, characterized in that The outer wall of the accommodating cavity (211) is separated by a first partition (510) and a second partition (520); the vehicle door handle also includes a second pin shaft (150); the second pin shaft (150) is rotatably arranged between the first partition plate (510) and the second partition plate (520), and the second pin shaft (150) passes through the first partition plate (510) and the second partition plate (520); the transmission shaft (110) is constructed as a hollow cylinder, and the transmission shaft (110) is sleeved on the outer periphery of the second pin shaft (150).

15. The vehicle door handle (2) according to claim 14, characterized in that The first partition plate (510) and the second partition plate (520) are respectively provided with a through hole (430), and the through hole (430) corresponds to the second pin shaft (150). The outer wall of the accommodating cavity (211) is also provided with a limiting member (500), and the limiting member (500) is located between the first partition plate (510) and the second partition plate (520). The limiting member (500) enables the axis of the transmission shaft (110) to coincide with the axis of the through hole (430) when the transmission shaft (110) moves along a first radial direction until it is limited by the limiting member (500).

16. The vehicle door handle (2) according to claim 15, characterized in that The limiting member (500) comprises a third partition plate (530) and a fourth partition plate (540), wherein the third partition plate (530) forms a first recessed portion (531) for accommodating the transmission shaft (110), and the fourth partition plate (540) forms a second recessed portion (541) for accommodating the transmission shaft (110), wherein the first recessed portion (531) and the second recessed portion (541) are used to limit the transmission shaft (110) at both ends in a second radial direction. The first radial direction is perpendicular to the second radial direction.

17. The vehicle door handle (2) according to any one of claims 13 to 16, characterized in that: have: In a first state, the handle (220) is hidden in the accommodating cavity (211); In a second state, the handle (220) is translated and extends out of the accommodating cavity (211); as well as In the third state, one end of the handle (220) can rotate around the other end of the handle (220) to unlock the door. Wherein, in the first state, the first lever (120) and the rotating assembly (300) are separated.

18. A vehicle door (3), characterized in that: The vehicle door handle (2) comprises the vehicle door handle (2) according to any one of claims 12-17.

19. A vehicle (4), characterized in that Comprising the vehicle door (3) as claimed in claim 18.

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