An inboard turning door handle and its opening method

Abstract

The present invention discloses an inward-turning handle for a vehicle door and an opening method thereof, comprising a handle base, a handle body and a transmission assembly, wherein the handle base has a handle groove, an operating space is provided in the handle base, and a transmission assembly is further provided on one side of the operating space; the handle body has a closed position, an open position, and an unlocked position; the transmission assembly comprises an electric actuator, a shift block, a transmission gear and a control lever, the control lever is connected to an unlocking device, an intermediate gear is provided at the end of a rotating shaft, and the intermediate gear is meshed with the transmission gear; a first arm and a second arm are provided on the transmission gear, and the transmission assembly has an electric opening path and an emergency opening path; the shift block abuts against the first arm in the electric opening path, and actuates the transmission gear and the intermediate gear to rotate to the open position, the handle body and the intermediate gear rotate to the open position in the emergency opening path, and the transmission gear and the first arm are disengaged from the shift block under the action of an external force, and the second arm is close to or abuts against the control lever in the open position.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, and in particular to an inward-turning handle of a vehicle door and an opening method thereof. Background Art

[0002] At present, the hidden door handles on the market usually include an electric actuator, which switches the door handle from a hidden position flush with the car door to an open position extending out of the car door. The hidden door handles have different opening forms depending on the transmission structure, such as flat-out door handles, swing-out door handles and inward-folding door handles. Depending on the operation method, the hidden door handles can also be awakened by mechanical pressing or touch sensing to activate the electric opening function of the hidden door handle.

[0003] For purely electronic hidden handles, normal unlocking cannot be performed in the case of power outage or power failure, posing a safety hazard to users. In order to cope with some emergency situations, an emergency opening structure is usually set on the hidden door handle. When the door handle is out of power or power failure, the user is allowed to perform emergency operation on the door handle from the outside of the car door, thereby mechanically opening the door handle and rescuing trapped people, improving the safety of users in emergency situations.

[0004] However, even if an emergency opening structure is provided, the existing emergency opening structure is concealed or requires the use of tools to pry open the cover plate for operation, resulting in difficulty in operation. Other emergency opening structures require applying force to the hidden door handle at a special angle. For example, for some flat door handles and swing-out door handles, it is necessary to press hard on one end of the door handle to swing the door handle out for emergency opening operation.

[0005] The prior art discloses an inward-folding door handle with publication number CN115559621A, which drives a push rod to perform linear motion through a transversely placed electric actuator and a worm gear transmission assembly, and then drives a connecting rod mechanism to rotate. A first connecting seat is provided on the handle, and the handle is connected to the connecting rod mechanism through the first connecting seat, and the connecting rod mechanism drives the handle to perform a flipping action. In an emergency, due to the transmission structure between the connecting rod mechanism, the first connecting seat and the push rod of the electric actuator, the user needs to overcome a large transmission resistance to operate the handle, which makes the operation extremely inconvenient. Summary of the Invention

[0006] In view of the deficiencies in the prior art, an object of the present invention is to provide a vehicle door inward-turning handle and an opening method thereof.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: A vehicle door inward handle, comprising:

[0008] The handle base has a handle groove arranged toward the door surface, and defines an operating space for the handle body within the handle base, and a transmission assembly is also provided on one side of the operating space;

[0009] The handle body has a closed position in which the handle is closed in the handle groove, an open position retracted into the operating space, and an unlocked position retracted relative to the open position. The handle body is exposed in the handle groove in the open position and the unlocked position. A rotating shaft is further provided between the handle body and the handle base to allow the handle body to rotate between multiple positions.

[0010] The transmission assembly includes an electric actuator, a shift block provided on the actuating end of the electric actuator, and a transmission gear and a control rod sequentially arranged and spaced apart from the shift block. The control rod is connected to the unlocking device. An intermediate gear is provided at the end of the rotating shaft and is in meshing engagement with the transmission gear.

[0011] The transmission gear is provided with a first arm extending in the opening path of the shift block and a second arm extending in the unlocking path of the control lever. The transmission assembly has an electric opening path inputted with power from an electric actuator and an emergency opening path actuated by external hand force.

[0012] The shift block abuts against the first arm in the electric opening path and actuates the transmission gear and the intermediate gear to rotate to the open position of the handle body. The handle body and the intermediate gear are actuated by an external force to rotate to the open position in the emergency opening path, and the transmission gear and the first arm are disengaged from the shift block under the action of the external force. The second arm is close to or abuts against the control rod in the open position.

[0013] Furthermore, the electric actuator, the shift block, the transmission gear and the control rod are arranged in sequence in the height direction, and the intermediate gear is provided between the control rod and the shift block.

[0014] Furthermore, the projections of the transmission gear and the control rod in the height direction at least partially overlap, the second arm extends on the outer peripheral wall of the transmission gear, the first arm extends in the axial direction and on the outer peripheral side of the transmission gear, and the shift block and the electric actuator are arranged in sequence in the axial direction of the transmission gear.

[0015] Furthermore, a secondary shell extends from one side of the handle base, and the secondary shell defines a transmission space separated from the operating space, and the transmission assembly is accommodated in the transmission space.

[0016] Furthermore, the handle body, the transmission gear and the control rod are all connected with an elastic member for providing a reset force, and the first arm is disengaged from the shift block in the emergency opening path.

[0017] Furthermore, the elastic component includes a first torsion spring arranged in the transmission gear and a second torsion spring arranged in the control rod. One end of the first torsion spring abuts against the transmission gear and the other end is clamped with the handle base. One end of the second torsion spring abuts against the control rod and the other end is clamped with the handle base.

[0018] Furthermore, the handle body includes a plate body matching the handle groove, and a rotating arm and a shaft sleeve extending at both ends of the plate body, the shaft sleeve is arranged along the vehicle length direction, and the rotating shaft is fixedly passed through the rotating arm and the shaft sleeve along the vehicle length direction. A third torsion spring is also provided on the shaft sleeve, and the third torsion spring includes a torsion spring part mounted on the shaft sleeve, and a first abutting part connected between the opposite ends of the torsion spring part, and the torsion spring part is provided with a second abutting part away from the first abutting part, the first abutting part abuts against the handle shell, and the second abutting part abuts against the rotating arm.

[0019] Furthermore, a driving arm is provided at one end of the rotating shaft away from the intermediate gear, and a micro switch is provided on the opening path of the driving arm. The micro switch is used to output a vehicle unlocking signal, and an inertia arm is provided between the micro switch and the driving arm. The inertia arm rotates and interferes between the micro switch and the driving arm under the actuation of the vehicle's driving inertia force or collision impact force.

[0020] Furthermore, the inertia arm is axially offset from the driving arm, the driving arm is provided with a third arm opposite to the micro switch, and a fourth arm axially extending on the third arm, the fourth arm is opposite to the inertia arm.

[0021] The present invention also provides a method for opening a vehicle door inward-turning handle, which is applied to the above-mentioned vehicle door inward-turning handle, comprising:

[0022] Determine whether the electric actuator is powered on, if so, proceed to step X, if not, proceed to step Y;

[0023] Wherein, step X comprises:

[0024] X1, electric actuator receives door opening signal;

[0025] X2. The electric actuator drives the shift block to rotate and abuts the first arm of the transmission gear, forcing the transmission gear to rotate. The transmission gear rotates, driving the intermediate gear and the rotating shaft to rotate. The handle body retracts from the closed position to the open position, exposing the handle groove. At this time, the second arm of the transmission gear approaches or abuts the control lever.

[0026] X3. Reach into the operating space through the handle slot and further actuate the handle body inward. The handle body actuates the transmission gear through the intermediate gear, and actuates the control lever through the second arm to rotate to the unlocked position;

[0027] Alternatively, the electric actuator further actuates the transmission gear via the shift block, and actuates the control lever to rotate to the unlocked position via the second arm;

[0028] Wherein, step Y comprises:

[0029] Y1. Push the handle inward from the outside of the door, forcing it into the operating space. The handle actuates the transmission gear through the intermediate gear, and the second arm approaches the control lever.

[0030] Y2. Further actuate the handle body inward in the operating space to the unlocked position. At this time, the second arm actuates the control lever to rotate to the unlocked position.

[0031] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0032] 1. The present invention provides a transmission in which the first arm of the transmission gear abuts the shift block, and the transmission gear is always meshed with the handle body through the intermediate gear. Therefore, in the electric opening path driven by the electric actuator, the transmission gear serves as an intermediate transmission member to drive the handle body to the open position. In the emergency opening path directly actuated by the external force of the hand, the handle body and the intermediate gear serve as intermediate transmission members to directly drive the transmission gear to abut the control lever for unlocking. In this process, the shift block does not rotate, and the transmission gear rotates in the opening direction under the action of the external force of the hand, so that the transmission gear and the shift block are disengaged from the transmission during the emergency operation, avoiding the problems of resistance superposition and mechanical interference of multiple transmission components in the prior art, significantly reducing the operating force of the user's hand, ensuring the reliability of the emergency operation, and easily completing the emergency opening even in a small space or special body position, thereby greatly improving the rescue efficiency in emergency situations.

[0033] 2. The present invention sets the handle body to be opened inward toward the vehicle door, which not only solves the problem of obstacles to the handle body opening outward under some extreme conditions, but also further clarifies the emergency opening method of the handle body. When the user unlocks the vehicle door normally and when the user unlocks the vehicle door in an emergency, the direction of the force applied to the handle body is the same, both of which press the handle body inward. The only difference is that during emergency unlocking, the user needs to push the handle body toward the inside of the vehicle door. After pushing the handle body into the operating space of the handle base, it is only necessary to further actuate the handle body, thereby forcing the transmission gear to drive the control rod to rotate, thereby completing the unlocking of the vehicle door. This unlocking step is consistent with the operation after the handle body is electrically opened to the open position. The operation is simple and the direction of the action path is single and clear, which is not easy to cause confusion in operation and avoids structural damage to the internal transmission components caused by the user's violent operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2This is a schematic diagram of the back structure of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of the present invention after the handle base and back shell are removed;

[0037] Figure 4 It is a schematic diagram of the transmission assembly and the handle body of the present invention in the closed position;

[0038] Figure 5 It is a schematic diagram of the transmission assembly and the handle body of the present invention in the open position;

[0039] Figure 6 It is a schematic structural diagram of the transmission assembly and the handle body of the present invention in the closed position;

[0040] Figure 7 Schematic diagram of the structure of the inertia arm, micro switch and drive arm of the present invention;

[0041] Figure 8 is a schematic structural diagram of the attachment seat of the present invention;

[0042] Figure 9 is a cross-sectional schematic diagram of the handle body of the present invention in the closed position;

[0043] Figure 10 is a cross-sectional schematic diagram of the handle body of the present invention in the open position;

[0044] Figure 11 An exploded schematic diagram of the inertia arm and the driving arm of the present invention on the attachment base;

[0045] Figure 12 Schematic diagram of the explosion of the inertia arm and the driving arm of the present invention;

[0046] Figure 13 This is an exploded schematic diagram of the control rod, transmission gear and shift block on the auxiliary housing of the present invention;

[0047] Figure 14 Schematic diagram of the explosion of the control rod and the transmission gear of the present invention;

[0048] Figure: 1. Handle base; 101. Handle groove; 102. Operating space; 103. Sub-housing; 1031. First bulkhead; 104. Transmission space; 105. Attachment seat; 1051. Second bulkhead; 1052. Limit seat; 1053. Sixth notch; 106. Main housing; 107. Back housing; 108. Cable seat; 2. Transmission assembly; 201. Electric actuator; 202. Dial block; 2021 , abutting arc surface; 203, transmission gear; 2031, first arm; 2032, second arm; 2033, tooth surface; 2034, first ring groove; 2035, first notch; 204, control lever; 2041, unlocking arm; 2042, transmission arm; 2043, second ring groove; 2044, third notch; 2045, unlocking wire; 205, intermediate gear; 3, handle body; 301, rotating shaft; 302, Plate; 303, rotating arm; 304, shaft sleeve; 3031, fifth notch; 4, elastic member; 401, first torsion spring; 402, second torsion spring; 403, third torsion spring; 4031, torsion spring portion; 4032, first abutting portion; 4033, second abutting portion; 404, fourth torsion spring; 405, fifth torsion spring; 5, driving arm; 501, third arm; 502, fourth arm; 503, fourth ring groove; 5 031, seventh notch; 6, micro switch; 601, trigger part; 7, inertia arm; 701, blocking part; 702, hooking part; 703, third ring groove; 7031, convex edge; 8, first shaft seat; 801, first ring convex; 802, second notch; 9, second shaft seat; 901, second ring convex; 902, fourth notch; 10, third shaft seat; 1001, third ring convex; 1002, eighth notch. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] It should be understood that although terms such as upper, middle, lower, top, end, etc. appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for ease of understanding, and are not used to define any direction or order limitation.

[0051] like Figure 1-3 As shown, a vehicle door inward handle includes:

[0052] The handle base 1 is provided on the inner side of the vehicle door and is used to provide a space for accommodating and operating the handle body 3. The handle base 1 is provided with a handle groove 101 arranged toward the vehicle door surface, and defines an operating space 102 for the handle body 3 within the handle base 1. A transmission assembly 2 is also provided on one side of the operating space 102.

[0053] The handle body 3 has a closed position closed in the handle groove 101, an open position retracted into the operating space 102, and an unlocked position retracted relative to the open position. The handle body 3 exposes the handle groove 101 in the open position and the unlocked position, and the handle body 3 is in the open position. The operating space 102 is open to the outside of the vehicle door through the handle groove 101, so that the user's hand can be inserted into the operating space 102 and further act in the rotation direction of the handle body 3 to rotate the handle body 3 to the unlocked position further retracted toward the inside of the vehicle door. Of course, the handle body 3 can also be rotated from the open position to the unlocked position by the transmission assembly 2, wherein a rotating shaft 301 is further provided between the handle body 3 and the handle base 1 for the handle body 3 to rotate between multiple positions, and the rotating shaft 301 is arranged along the length direction of the vehicle. Specifically, it can be realized by a structure in which a metal shaft passes through the rotating arm 303 and the shaft sleeve 304, which is used to transmit the rotation torque and limit the rotation trajectory;

[0054] The transmission assembly 2 includes an electric actuator 201, a shift block 202 arranged on the execution end of the electric actuator 201, and a transmission gear 203 and a control rod 204 arranged in sequence at intervals from the shift block 202. The electric actuator 201 is arranged in the handle base 1 and is connected to the vehicle system to receive signals for opening and closing the handle body 3. The control rod 204 is connected to the unlocking device. The control rod 204 remains in the locked state of the vehicle door under normal circumstances and rotates in the unlocking direction under the action of the transmission gear 203, thereby opening the unlocking device. An intermediate gear 205 is fixed to the end of the rotating shaft 301, so that the handle body 3, the rotating shaft 301 and the intermediate gear 205 rotate synchronously, and the intermediate gear 205 remains engaged with the transmission gear 203.

[0055] Preferably, the axes of the transmission gear 203 , the intermediate gear 205 , the control rod 204 and the shift block 202 are all arranged parallel to the axis of the rotating shaft 301 .

[0056] Furthermore, the transmission assembly 2 has an electric opening path in which power is input from the electric actuator 201, and an emergency opening path actuated by an external force of the hand, in which the user can push the handle body 3 to rotate in the opening direction toward the inside of the vehicle door.

[0057] Among them, the transmission is implemented between the shift block 202 and the transmission gear 203 by abutting in the opening direction, so that in emergency situations such as power failure, the transmission gear 203 can receive external force from the handle body 3 and the intermediate gear 205, so that the transmission gear 203 rotates relative to the shift block 202. At this time, the transmission gear 203 and the shift block 202 are decoupled in the opening path. During the emergency opening process, the user can directly drive the intermediate gear 205 by applying an inward push to the handle body 3. Thanks to the structural optimization of the transmission assembly 2 in the present invention, it is only necessary to overcome the meshing resistance between the transmission gear 203 and the intermediate gear 205, and the elastic reset force between the transmission gear 203 and the handle body 3. The elastic reset force is provided by the elastic member 4 arranged between the transmission gear 203 and the handle body 3, thereby effectively reducing the mechanical impedance during manual intervention, realizing the driving modes of two paths: electric opening and emergency opening, and making it convenient for users to apply force, reducing safety hazards.

[0058] On this basis, the rotating shaft 301 further limits the handle body 3 to an opening rotation path of retracting toward the inside of the vehicle door. During the emergency opening and electric opening processes, it is necessary to apply a force to the handle body 3 to retract toward the inside of the vehicle door. The only difference is that during emergency unlocking, the user needs to push the handle body 3 toward the inside of the vehicle door first. After pushing the handle body 3 into the operating space 102 of the handle base 1, it is only necessary to further actuate the handle body 3, thereby forcing the transmission gear 203 to drive the control rod 204 to rotate, and complete the unlocking of the vehicle door. This unlocking step is consistent with the operation after the handle body 3 is electrically opened to the open position. The operation is simple and the direction of the action path is single and clear, which is not easy to cause confusion in operation, and avoids structural damage to the internal transmission component 2 caused by the user's violent operation.

[0059] Specifically, the handle body 3, the transmission gear 203 and the control rod 204 are all connected with an elastic component 4 for providing a reset force. The elastic component 4 is used to provide the reset force for the handle body 3, the transmission gear 203 and the control rod 204 to return to the closed position after being actuated in the opening direction, as well as the retaining force in the closed position, to ensure the stability of the handle body 3 during vehicle driving.

[0060] Reference Figure 4 and Figure 5As shown, as a further embodiment of the transmission gear 203, the transmission gear 203 has a tooth surface 2033 that cooperates with the intermediate gear 205. The outer diameter of the intermediate gear 205 is preferably smaller than that of the transmission gear 203, so that an incomplete tooth surface 2033 can be arranged on the transmission gear 203; the transmission gear 203 is provided with a first arm 2031 and a second arm 2032 extending on the outside thereof, the first arm 2031 has a component extending axially on the end face of the transmission gear 203, the first arm 2031 and the second arm 2032 are arranged at an angle, and the tooth surface 2033 is arranged between the first arm 2031 and the second arm 2032, wherein the first arm 2031 extends in the opening action path of the shift block 202 and abuts against the shift block 202 for transmission, and the second arm 2032 extends in the opening action path of the shift block 202 In the unlocking action path of the control rod 204, it is abutted against the control rod 204 for transmission. It should be pointed out that in the electric opening path, the electric actuator 201 drives the shift block 202 to rotate, and the shift block 202 is used as an active part to abut and actuate the first arm 2031. Therefore, in the emergency opening path, when the electric actuator 201 lacks power and cannot actuate the shift block 202 to rotate, the transmission gear 203 can still be driven to rotate by the handle body 3 and the intermediate gear 205, and the first arm 2031 will not interfere with the shift block 202 in the opening path. For the second arm 2032, it is actuated in the unlocking direction in both the electric opening path and the emergency unlocking path to trigger the unlocking device, so that the power transmission of the electric and manual opening paths is continuous, forming a one-way unlocking power transmission.

[0061] Thanks to the offset between the transmission gear 203 and the shift block 202 on the opening path, in the electric opening path, a power transmission chain is realized which is sequentially formed by the electric actuator 201, the shift block 202 and the transmission gear 203, and the tooth surface 2033 of the transmission gear 203 further drives the intermediate gear 205, the rotating shaft 301 and the handle body 3 to rotate toward the open position, and the transmission gear 203 drives the control rod 204 to rotate to the unlocked position; and in the emergency opening path, a power transmission chain which is sequentially formed by the handle body 3, the rotating shaft 301, the intermediate gear 205 and the transmission gear 203, the transmission gear 203 rotates around its own axis, the first arm 2031 slides and disengages along the arc surface 2021 of the shift block 202, and the transmission gear 203 drives the control rod 204 to rotate to the unlocked position, and the power transmission path bypasses the electric actuator 201, and the emergency operation path and the electric path do not interfere with each other, which not only retains the precise control characteristics of the electric mode, but also improves the reliability of the emergency opening.

[0062] Reference Figures 3 to 6As shown, as a further embodiment of the shift block 202, the shift block 202 is connected to the execution end of the electric actuator 201, and an abutting arc surface 2021 is provided on the side surface of the shift block 202 facing the opening direction. The center of the abutting arc surface 2021 is eccentrically arranged with respect to the execution end axis of the electric actuator 201, and correspondingly, a mating arc surface facing the abutting arc surface 2021 is provided on the first arm 2031.

[0063] Preferably, the abutting arc surface 2021 of the shift block 202 abuts against the end portion of the mating arc surface away from the axis of the transmission gear 203 at least when the handle body 3 is in the open position, thereby improving the smoothness of the electric unlocking movement. In other embodiments, the abutting arc surface 2021 can also be set to always abut against the end portion of the mating arc surface during the electric opening path.

[0064] Reference Figures 3 to 6 As shown, as a further embodiment of the control rod 204, the control rod 204 has an unlocking arm 2041 and a transmission arm 2042 extending in the radial direction, wherein the extension length of the unlocking arm 2041 is preferably set to be greater than the extension length of the transmission arm 2042, and an unlocking pull wire 2045 is connected to the end of the unlocking arm 2041, and the unlocking pull wire 2045 is connected to the unlocking device. The unlocking device is triggered by the rotation of the control rod 204 and the unlocking arm 2041, and the transmission arm 2042 has an abutment surface facing the second arm 2032. In the electric and emergency opening paths, the transmission gear 2032 is used to open the door. 03, the second arm 2032 presses against the transmission arm 2042 on the control rod 204, thereby forcing the control rod 204 to rotate in the unlocking direction. In the open position corresponding to the handle body 3, the second arm 2032 can be optionally close to or abut against the transmission arm 2042. Corresponding to the emergency opening path, only the remaining rotation stroke of the handle body 3 in the operating space 102 is required to be sufficient to transmit the second arm 2032 to the unlocking position of the control rod 204. For the electric opening path, only the remaining rotation stroke of the shift block 202 driven by the electric actuator 201 is required to be sufficient to transmit the second arm 2032 to the unlocking position of the control rod 204.

[0065] Reference Figures 3 to 6 As shown, as a further embodiment of the handle base 1, the handle base 1 includes a main shell 106, a sub-shell 103 extending on one side of the main shell 106, and an attachment seat 105 on the other side of the main shell 106, the sub-shell 103 and the attachment seat 105 extend on the main shell 106 in the length direction of the vehicle door, and the main shell 106 and the sub-shell 103 are openly arranged toward the inside of the vehicle door, and the handle body 3 shaft 301 is passed through the main shell 106 and on the main shell 106, and both ends of the shaft 301 extend out of the sub-shell 103 and the attachment seat 105.

[0066] from Figure 9 and Figure 10 It can be seen that, further, a back shell 107 is connected to the main shell 106, and an operating space 102 is defined between the back shell 107 and the main shell 106. The internal contour of the back shell 107 is at least larger than the contour trajectory of the handle body 3 from the closed position to the unlocked position.

[0067] Preferably, the inner contour of the back shell 107 is set to be an arc shape and matches the contour trajectory of the handle body 3. The position of the rotating shaft 301 is set close to the axis of the back shell 107, so that the operating space 102 further constrains the actuation path of the user's hand on the handle body 3, so that the outer surface of the handle body 3 always faces the outside of the operating space 102, thereby improving the stability of the hand's action on the handle body 3 and avoiding hand injury when the hand is extended between the surface of the handle body 3 and the inner contour of the back shell 107.

[0068] In this embodiment, the sub-shell 103 defines a transmission space 104 on one side of the main shell 106. The sub-shell 103 may have the same material as the handle base 1 and cover the transmission assembly 2 in the height direction, so that the transmission assembly 2 is accommodated in the transmission space 104, and a first partition wall 1031 is provided between the main shell 106 and the sub-shell 103. The first partition wall 1031 separates the operating space 102 from the transmission space 104. One end of the rotating shaft 301 is passed through the first partition wall 1031 and extends into the transmission space 104, thereby implementing the transmission coordination between the transmission assembly 2 and the rotating shaft 301 and the handle body 3. Through the design of the independent transmission space 104, the transmission assembly 2 and the active area of the handle body 3 are isolated, the risk of interference between mechanical components is reduced, and the transmission assembly 2 is facilitated to be independently inspected or replaced.

[0069] As a further arrangement of the transmission assembly 2 in the transmission space 104, the transmission space 104 is preferably extended in the height direction of the door, and the electric actuator 201, the shift block 202, the transmission gear 203 and the control rod 204 are arranged in sequence in the height direction, wherein the electric actuator 201 is exposed in a vertical posture, thereby forming mutually parallel rotation axes of the shift block 202, the transmission gear 203 and the control rod 204 in the height direction, and the above rotation axes are all parallel to the rotating shaft 301, and the intermediate gear 205 It is arranged between the control rod 204 and the shift block 202. Through the above improvements, a reasonable isolation of the operating space 102 of the transmission component 2 and the handle body 3 is achieved, which not only reduces the risk of interference between the transmission component and the handle body 3, but also improves the compactness of the handle body 3 assembly. Compared with the limitation of existing flat-out and swing-out door handles that require force to be applied at a special angle at the end, the inward-folding handle of the present invention is designed with an axial rotating shaft 301, allowing the user to apply force at any position within the handle groove 101. The operating direction is more flexible, and the emergency opening path is adapted to the force application habit of the handle body 3.

[0070] Specifically, a wire holder 108 for fixing the unlocking wire 2045 is provided on the sub-shell 103. The wire holder 108 extends on the sub-shell 103 in the thickness direction of the vehicle door, so that the unlocking wire 2045 is arranged downward from the upper part of the transmission space 104 and is spaced from the transmission assembly 2 in the thickness direction of the vehicle door. Through this arrangement, the structural compactness and integration of the handle base 1 are further improved.

[0071] from Figure 4 and Figure 5 As can be seen, in other embodiments, to further reduce the volume and space occupation of the transmission assembly 2, the projections of the transmission gear 203 and the control rod 204 in the height direction at least partially overlap, that is, the transmission gear 203 and the control rod 204 overlap in the axial direction. For example, the thickness of the transmission gear 203 and the control rod 204 are set to be the same, and the thickness of the intermediate gear 205 is set to be the same as the thickness of the transmission gear 203. The thickness of the second arm 2032 is consistent with the thickness of the transmission gear 203 and extends on the outer peripheral side of the transmission gear 203. The first arm 2031 extends on the axial end face of the transmission gear 203 and further extends on the outer peripheral wall of the transmission gear 203. The shift block 202 and the first arm 2031 at least partially overlap in the height direction of the vehicle door, thereby ensuring transmission between the first arm 2031 and the shift block 202. The shift block 202 and the electric actuator 201 are arranged sequentially along the axial direction of the transmission gear 203, thereby reducing the space occupation of the transmission assembly 2 in the height direction and optimizing the spatial distribution of the transmission path.

[0072] like Figure 4 and Figure 5 As shown, as a further embodiment of the elastic component 4, the elastic component 4 includes a first torsion spring 401 arranged in the transmission gear 203, a second torsion spring 402 arranged in the control rod 204, and a third torsion spring 403 arranged between the rotating shaft 301 and the handle body 3. The above-mentioned elastic component 4 provides independent reset forces for the transmission gear 203, the handle body 3 and the control rod 204. Thanks to the synchronous rotation of the intermediate gear 205 and the handle body 3, and the intermediate gear 205 always remains engaged with the transmission gear 203, the third torsion spring 403 also assists in resetting the transmission gear 203 when actuating the handle body 3 to perform a reset action. Similarly, the control rod 204 is also able to apply auxiliary force to the transmission gear 203 with the help of the second torsion spring 402, and further acts on the reset of the handle body 3, thereby improving the reset stability of the handle body 3 and the transmission assembly 2.

[0073] The elastic member 4 refers to a mechanical element that can store mechanical energy and generate a restoring force when released, and can be specifically implemented by a spiral torsion spring that provides a restoring force through a pre-tightening force.

[0074] It should be pointed out that by arranging an independent first torsion spring 401 in the transmission gear 203, the reset action of the transmission gear 203 can be separated from the transmission of the shift block 202, thereby providing a relatively independent reset action path for the transmission gear 203 to avoid interference between the transmission gear 203 and the shift block 202 in the emergency opening path, and improve the reliability of the mechanism, that is, the shift block 202 only outputs the opening actuating force to the transmission gear 203 in the electric opening path to implement the electric automatic opening of the handle body 3.

[0075] The present invention provides an elastic member 4 on the handle body 3, the control rod 204 and the transmission gear 203, so that the handle body 3, the transmission gear 203 and the control rod 204 are automatically reset after operation, thereby reducing the external force load required during manual operation. At the same time, the disengagement transmission design of the first arm 2031 and the shift block 202 avoids mechanical interference between the transmission gear 203 and the electric actuator 201 during the reset process.

[0076] In addition, this embodiment solves the problems of difficult component resetting and excessive operating resistance during emergency operation through the elastic component 4. The coordinated action of the elastic component 4 realizes the linkage resetting of multiple components, ensuring that the handle can quickly return to its original state after electric or manual operation, thereby improving the smoothness of operation and system stability.

[0077] like Figure 13 and Figure 14 As shown, as a further implementation of the transmission gear 203 and the first torsion spring 401, a first annular groove 2034 is provided inside the transmission gear 203, and a first notch 2035 is opened on the first annular groove 2034. The first torsion spring 401 is sleeved in the first annular groove 2034, and one end of the first torsion spring 401 abuts against the first notch 2035 to achieve abutment with the transmission gear 203. A first shaft seat 8 is provided on the side wall of the handle base 1, and the outer ring of the first shaft seat 8 is provided with a first annular protrusion 801 matching the outer wall of the transmission gear 203. A second notch 802 is provided on the first annular protrusion 801, and the other end of the first torsion spring 401 abuts against the second notch 802, thereby achieving the clamping connection between the other end of the first torsion spring 401 and the handle base 1.

[0078] As a further implementation of the control rod 204 and the second torsion spring 402, a second annular groove 2043 is provided inside the control rod 204, and a third notch 2044 is opened on the second annular groove 2043. The second torsion spring 402 is sleeved in the second annular groove 2043, and one end of the second torsion spring 402 abuts against the third notch 2044 to achieve abutment with the control rod 204. A second shaft seat 9 is provided on the side wall of the handle base 1, and the outer ring of the second shaft seat 9 is provided with a second annular protrusion 901 matching the outer wall of the control rod 204. A fourth notch 902 is provided on the second annular protrusion 901, and the other end of the second torsion spring 402 abuts against the fourth notch 902, thereby achieving the clamping connection between the other end of the second torsion spring 402 and the handle base 1.

[0079] like Figure 3 and Figure 6 As shown, as a further embodiment of the handle body 3 and the third torsion spring 403, the handle body 3 includes a plate body 302 matching the handle groove 101, and a rotating arm 303 and a shaft sleeve 304 extending at both ends of the plate body 302. The shaft sleeve 304 is arranged along the vehicle length direction for carrying the rotating shaft 301. The rotating shaft 301 is fixedly arranged in the rotating arm 303 and the shaft sleeve 304 along the vehicle length direction, so that the rotating shaft 301, the handle body 3 and the intermediate gear 205 rotate synchronously. The integrated design of the shaft sleeve 304 and the rotating arm 303 simplifies the structural complexity of the rotating fulcrum. A third torsion spring 403 is also provided on the sleeve 304. The third torsion spring 403 includes a torsion spring portion 4031 sleeved on the outer surface of the sleeve 304, and a first abutting portion 4032 connected between the opposite ends of the torsion spring portion 4031. The torsion spring portion 4031 is away from the first abutting portion 4032 and is provided with a second abutting portion 4033. The first abutting portion 4032 abuts against the handle shell, and the second abutting portion 4033 abuts against the rotating arm 303. A fifth slot 3031 is provided on the rotating arm 303, and the second abutting portion 4033 is clamped in the fifth slot 3031.

[0080] When the user performs an emergency operation, the handle body 3 is pushed to rotate from the closed position to the open position through the external force of the hand. The resistance of the third torsion spring 403 can prevent the handle body 3 from hitting the transmission component 2 due to inertia. When the external force is removed, the elastic reset force causes the torsion spring part 4031 to restore its initial shape, driving the rotating arm 303 and the handle body 3 to return to the closed position. During the opening and closing process of the handle body 3, the intermediate gear 205 is always engaged with the transmission gear 203, and the elastic force of the third torsion spring 403 of the handle body 3 is used to maintain smooth movement.

[0081] like Figure 7 and Figure 8 、 Figure 11As shown, as a further embodiment of the inertia lock, a driving arm 5 is provided at the end of the rotating shaft 301 facing away from the intermediate gear 205. A microswitch 6 is provided in the opening path of the driving arm 5. The microswitch 6 is triggered by the driving arm 5 to output an unlocking signal to the vehicle computer. The driving arm 5 rotates synchronously with the rotating shaft 301 to transmit the motion trajectory. Furthermore, an inertia arm 7 is provided between the microswitch 6 and the driving arm 5. The inertia arm 7 is provided with a blocking portion 701. When actuated by the inertia of the vehicle or the impact of a collision, the inertia arm 7 rotates and interferes between the microswitch 6 and the driving arm 5, thereby preventing the driving arm 5 from triggering the microswitch 6 due to the inertia or impact. Under abnormal operating conditions, the inertia arm 7 severs the physical connection between the driving arm 5 and the microswitch 6. Simultaneously, the driving arm 5 rotates synchronously with the handle body 3 via the rotating shaft 301, further preventing the handle body 3 from retracting due to inertia or impact.

[0082] Reference Figure 11 and Figure 12 As shown, further, the inertia arm 7 is also connected to a fourth torsion spring 404 and a third annular groove 703 for inserting the fourth torsion spring 404, the third annular groove 703 is provided with a convex edge 7031 for abutting one end of the fourth torsion spring 404, and the outer wall of the attachment seat 105 is provided with a sixth notch 1053 for inserting the other end of the fourth torsion spring 404; further, a fourth annular groove 503 is provided inside the driving arm 5, a seventh notch 5031 is opened on the fourth annular groove 503, and the fifth torsion spring 405 is sleeved In the fourth ring groove 503, one end of the fifth torsion spring 405 abuts against the seventh slot 5031 to achieve abutment with the driving arm 5. A third shaft seat 10 is provided on the side wall of the handle base 1 corresponding to the attachment seat 105. The outer ring of the third shaft seat 10 is provided with a third ring protrusion 1001 matching the outer wall of the driving arm 5. An eighth slot 1002 is provided on the third ring protrusion 1001. The other end of the fifth torsion spring 405 abuts against the eighth slot 1002, thereby achieving the clamping connection between the other end of the fifth torsion spring 405 and the handle base 1.

[0083] In a normal operating scenario, the inertia arm 7 moves away from the driving arm 5 under the action of the fourth torsion spring 404 to retain the normal vehicle unlocking function. When the rotating shaft 301 drives the driving arm 5 to rotate to a preset angle, the driving arm 5 contacts the trigger end of the micro switch 6, prompting the vehicle system to generate an unlocking signal.

[0084] During an emergency operation or when the vehicle is impacted by an external force, the inertial arm 7 rotates about its axis 301 due to the inertial force and the impact force, causing the blocking portion 701 of the inertial arm 7 to be inserted into the gap between the driving arm 5 and the microswitch 6. At this time, the rotation path of the driving arm 5 is restricted, and it cannot directly trigger the microswitch 6, thereby preventing false triggering or signal interference. Furthermore, when the external force is removed, the inertial arm 7 automatically returns to its initial position via the fourth torsion spring 404, restoring the direct linkage between the driving arm 5 and the microswitch 6.

[0085] Specifically, the inertia arm 7 is axially offset from the drive arm 5. The drive arm 5 is provided with a third arm 501 opposite to the micro switch 6, and a fourth arm 502 axially extending on the third arm 501. The fourth arm 502 is arranged opposite to the inertia arm 7. The axial offset setting means that the inertia arm 7 and the drive arm 5 have a non-coplanar positional relationship in the extension direction of the rotating shaft 301, so that the inertia arm 7 does not interfere with the opening action trajectory of the third arm 501, and the fourth arm 502 extends axially to the vertical area where the inertia arm 7 is located. Under abnormal circumstances, the inertia arm 7 is forced to rotate and abuts against the fourth arm 502, thereby preventing the vehicle computer from being accidentally unlocked.

[0086] Specifically, when the vehicle door is normally closed, the third arm 501 of the driving arm 5 is spaced apart from the microswitch 6, and the fourth arm 502 is in a non-contact state with the inertia arm 7. When the electric actuator 201 drives the rotating shaft 301 to rotate, the third arm 501 of the driving arm 5 rotates along a predetermined trajectory until it contacts and triggers the microswitch 6. When the vehicle crashes and generates inertial force, the inertia arm 7 rotates around its axis due to the external force, and its end is inserted between the fourth arm 502 and the microswitch 6, preventing the third arm 501 from contacting the microswitch 6.

[0087] In this embodiment, the purpose of setting the inertia arm 7 is to further improve the safety of the handle body 3, so as to play a safety compensation role when the vehicle door receives abnormal impact force and inertia force on the basis of adjusting the holding force of the transmission assembly 2 in the closed state.

[0088] from Figure 2 and Figure 8It can be seen that the attachment seat 105 is on the side of the handle base 1 away from the transmission assembly 2, and the handle base 1 has a second partition wall 1051 separated from the attachment seat 105. The first partition wall 1031 and the second partition wall 1051 constitute the two side boundaries of the operating space 102, and the micro switch 6 is accommodated in the attachment seat 105, and the trigger part 601 of the micro switch 6 is exposed, and the driving arm 5 is arranged on the lower side of the attachment seat 105, and the third arm 501 on the driving arm 5 is arranged opposite to the touch part. This arrangement plays a protective role for the micro switch 6. In addition, the attachment seat 105 is also provided with a limit seat 1052 cooperating with the inertia arm 7, and the inertia arm 7 is provided with a hook portion 702 arranged toward the limit seat 1052. Under normal circumstances, the elastic force of the fourth torsion spring 404 keeps the inertia arm 7 on the attachment seat 105, and at this time the hook portion 702 is against the limit seat 1052.

[0089] In the closed position of the handle body 3, the handle groove 101 and the operating space 102 are closed, and the plate 302 of the handle body 3 is closed in the handle groove 101 of the handle base 1. At this time, the first arm 2031 of the transmission gear 203 keeps in contact with the shift block 202 at the back in the opening direction, but the electric actuator 201 does not apply a driving force to the shift block 202; there is a gap between the second arm 2032 of the transmission gear 203 and the transmission arm 2042 of the control rod 204, and the intermediate gear 205 keeps meshing with the transmission gear 203, but no mutual For rotation, the first torsion spring 401, the second torsion spring 402 and the third torsion spring 403 are all in a pre-tightened state, providing holding force for the transmission gear 203, the control rod 204 and the handle body 3; the shift block 202 of the electric actuator 201 is at an initial angle, and the abutting arc surface 2021 abuts against the far end of the matching arc surface of the first arm 2031; the inertia arm 7 is moved away from the driving arm 5 under the action of the fourth torsion spring 404 and is limited on the attachment seat 105, the third arm 501 of the driving arm 5 is spaced from the micro switch 6, and the fourth arm 502 has no contact with the inertia arm 7.

[0090] In the electric opening path, after the electric actuator 201 receives the unlocking signal, it drives the shift block 202 to rotate in the opening direction. The abutting arc surface 2021 of the shift block 202 abuts and pushes the back of the first arm 2031 in the electric opening path, forcing the transmission gear 203 to rotate. The transmission gear 203 drives the intermediate gear 205 to rotate through the tooth surface 2033, thereby driving the rotating shaft 301 and the handle body 3 to flip inward and retract into the operating space 102, until the plate body 302 is completely out of the handle groove 101;

[0091] As the transmission gear 203 continues to rotate, its second arm 2032 presses against the transmission arm 2042 of the control lever 204, forcing the control lever 204 to rotate. The unlocking arm 2041 of the control lever 204 pulls the unlocking wire 2045, triggering the unlocking device. At this time, the rotating shaft 301 drives the driving arm 5 to rotate, and the third arm 501 contacts and triggers the micro switch 6, which feeds back the unlocking completion signal to the vehicle computer.

[0092] The power for the continued rotation of the transmission gear 203 may be provided by the electric actuator 201 or by the user actuating the handle 3 .

[0093] When the power is off, the user presses the plate 302 of the handle body 3 from the outside of the car door, applying a thrust toward the inside of the car door; the handle body 3 drives the rotating shaft 301 and the intermediate gear 205 to rotate, forcing the transmission gear 203 to rotate synchronously. When the transmission gear 203 rotates, the first arm 2031 slides and disengages along the stationary abutment arc surface 2021 of the shift block 202, and the hand power is transmitted only through the intermediate gear 205, avoiding the mechanical resistance of the electric actuator 201. When the handle body 3 is rotated to the open position, the second arm 2032 of the transmission gear 203 contacts or approaches the transmission arm 2042 of the control rod 204, which operates the handle body in the operating space 102. 3 continues to apply thrust, the second arm 2032 pushes the control rod 204 to rotate, and the unlocking arm 2041 mechanically unlocks the door through the unlocking wire 2045. After the user's hand force is removed, the third torsion spring 403 drives the handle body 3 to reset, and the transmission gear 203 rotates under the action of the first torsion spring 401. The second arm 2032 is separated from the transmission arm 2042, and the control rod 204 is reset and locked under the action of the second torsion spring 402. The first arm 2031 is disengaged from the shift block 202 in the emergency opening path. The independent elastic member is also provided to disengage the first arm 2031 from the shift block 202 in the return closing path.

[0094] It can be foreseen that the inward-folding handle of the present invention solves the problem of excessive resistance in emergency operation of existing inward-folding door handles. In the power-off state, unlocking can be completed with just a single push. The operation path is intuitive and does not require force at a special angle. At the same time, the independence of electric drive and manual operation is retained to avoid structural interference between the two modes.

[0095] The present invention also provides a method for opening a vehicle door inward-turning handle, which is applied to the above-mentioned vehicle door inward-turning handle, comprising:

[0096] Determine whether the electric actuator 201 is powered on, if so, proceed to step X, if not, proceed to step Y;

[0097] Wherein, step X comprises:

[0098] X1, electric actuator 201 receives door opening signal;

[0099] X2. The electric actuator 201 drives the shift block 202 to rotate and abuts the first arm 2031 of the transmission gear 203, forcing the transmission gear 203 to rotate. The rotation of the transmission gear 203 drives the intermediate gear 205 and the rotating shaft 301 to rotate, and the handle body 3 retracts from the closed position to the open position, exposing the handle groove 101. At this time, the second arm 2032 of the transmission gear 203 approaches or abuts the control rod 204.

[0100] X3, extending into the operating space 102 through the handle slot 101 and further actuating the handle body 3 inward, the handle body 3 actuates the transmission gear 203 through the intermediate gear 205, and actuates the control lever 204 to rotate to the unlocked position through the second arm 2032;

[0101] Alternatively, the electric actuator 201 further actuates the transmission gear 203 via the shift block 202 , and actuates the control lever 204 to rotate to the unlocked position via the second arm 2032 ;

[0102] Wherein, step Y comprises:

[0103] Y1. Push the handle body 3 inward from the outside of the door, forcing the handle body 3 to retract into the operating space 102. The handle body 3 actuates the transmission gear 203 through the intermediate gear 205. At this time, the second arm 2032 approaches the control rod 204.

[0104] Y2. The handle body 3 is further actuated inwardly in the operating space 102 to the unlocked position. At this time, the second arm 2032 actuates the control rod 204 to rotate to the unlocked position.

[0105] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A door inward handle, characterized in that: include: The handle base (1) has a handle groove (101) arranged toward the surface of the vehicle door, and an operating space (102) for the handle body (3) is defined within the handle base (1), and a transmission assembly (2) is further provided on one side of the operating space (102); The handle body (3) has a closed position in which the handle is closed in the handle groove (101), an open position in which the handle is retracted into the operating space (102), and an unlocked position in which the handle is rotated toward the inside of the vehicle door relative to the open position. The handle groove (101) is exposed to the vehicle door in the open position and the unlocked position. A rotating shaft (301) is further provided between the handle body (3) and the handle base (1) to allow the handle body (3) to rotate between multiple positions. The transmission assembly (2) comprises an electric actuator (201), a shift block (202) provided on the execution end of the electric actuator (201), and a transmission gear (203) and a control rod (204) arranged in sequence and spaced apart from the shift block (202); the control rod (204) is connected to the unlocking device; an intermediate gear (205) is provided at the end of the rotating shaft (301); the intermediate gear (205) is kept in mesh with the transmission gear (203); The transmission gear (203) is provided with a first arm (2031) extending in the opening action path of the shift block (202), and a second arm (2032) extending in the unlocking action path of the control rod (204); the transmission assembly (2) has an electric opening path inputted with power from the electric actuator (201), and an emergency opening path actuated by an external force of the hand; The shift block (202) abuts against the first arm (2031) in the electric opening path and actuates the transmission gear (203) and the intermediate gear (205) to rotate to the open position of the handle body (3); the handle body (3) and the intermediate gear (205) are actuated by an external force in the emergency opening path and rotate to the open position, and the transmission gear (203) and the first arm (2031) are disengaged from the shift block (202) under the action of the external force, and the second arm (2032) is close to or abuts against the control rod (204) in the open position.

2. The vehicle door inward handle according to claim 1, characterized in that: The electric actuator (201), the shift block (202), the transmission gear (203) and the control rod (204) are arranged in sequence in the height direction, and the intermediate gear (205) is arranged between the control rod (204) and the shift block (202).

3. The vehicle door inward handle according to claim 1, characterized in that: The projections of the transmission gear (203) and the control rod (204) in the height direction at least partially overlap, the second arm (2032) extends on the outer peripheral wall of the transmission gear (203), the first arm (2031) extends in the axial direction and on the outer peripheral side of the transmission gear (203), and the shift block (202) and the electric actuator (201) are arranged in sequence along the axial direction of the transmission gear (203).

4. The vehicle door inward handle according to claim 1, characterized in that: A secondary housing (103) extends from one side of the handle base (1), and the secondary housing (103) defines a transmission space (104) separated from the operating space (102), and the transmission assembly (2) is accommodated in the transmission space (104).

5. The vehicle door inward handle according to claim 1, characterized in that: The handle body (3), the transmission gear (203) and the control rod (204) are all connected with an elastic member (4) for providing a reset force, and the first arm (2031) is disengaged from the shift block (202) in the emergency opening path.

6. The vehicle door inward handle according to claim 5, characterized in that: The elastic member (4) comprises a first torsion spring (401) arranged in the transmission gear (203) and a second torsion spring (402) arranged in the control rod (204); one end of the first torsion spring (401) abuts against the transmission gear (203) and the other end is clamped with the handle base (1); one end of the second torsion spring (402) abuts against the control rod (204) and the other end is clamped with the handle base (1).

7. The vehicle door inward handle according to claim 1, characterized in that: The handle body (3) includes a plate body (302) matched with the handle groove (101), and a rotating arm (303) and a shaft sleeve (304) extending at both ends of the plate body (302), wherein the shaft sleeve (304) is arranged along the vehicle length direction, and the rotating shaft (301) is fixedly arranged in the rotating arm (303) and the shaft sleeve (304) along the vehicle length direction, and a third torsion spring (403) is further provided on the shaft sleeve (304), and the third torsion spring (403) is provided on the shaft sleeve (304). 03) includes a torsion spring portion (4031) sleeved on the shaft sleeve (304), and a first abutting portion (4032) connected between opposite ends of the torsion spring portion (4031), the torsion spring portion (4031) is provided with a second abutting portion (4033) away from the first abutting portion (4032), the first abutting portion (4032) abuts against the handle base (1), and the second abutting portion (4033) abuts against the rotating arm (303).

8. The vehicle door inward handle according to claim 1, characterized in that: A driving arm (5) is provided at one end of the rotating shaft (301) away from the intermediate gear (205); a micro switch (6) is provided on the opening path of the driving arm (5); the micro switch (6) is used to output a vehicle unlocking signal; and an inertia arm (7) is provided between the micro switch (6) and the driving arm (5); the inertia arm (7) rotates under the actuation of the vehicle's driving inertia force or collision impact force and interferes between the micro switch (6) and the driving arm (5).

9. The vehicle door inward handle according to claim 8, characterized in that: The inertia arm (7) is staggered with the driving arm (5) in the axial direction. The driving arm (5) is provided with a third arm (501) opposite to the micro switch (6), and a fourth arm (502) extending axially on the third arm (501). The fourth arm (502) is arranged opposite to the inertia arm (7).

10. A method for opening a vehicle door inward handle, applied to the vehicle door inward handle according to any one of claims 1 to 9, characterized in that: Determine whether the electric actuator (201) is powered on, if so proceed to step X, if not proceed to step Y; Wherein, step X comprises: X1, electric actuator (201) receives door opening signal; X2. The electric actuator (201) drives the shift block (202) to rotate and abuts against the first arm (2031) of the transmission gear (203), forcing the transmission gear (203) to rotate. The transmission gear (203) drives the intermediate gear (205) and the rotating shaft (301) to rotate, and the handle body (3) retracts from the closed position to the open position, exposing the handle groove (101). At this time, the second arm (2032) of the transmission gear (203) is close to or abuts against the control rod (204); X3, extending into the operating space (102) through the handle groove (101), and further actuating the handle body (3) inward, the handle body (3) actuates the transmission gear (203) through the intermediate gear (205), and actuates the control lever (204) to rotate to the unlocking position through the second arm (2032); Alternatively, the electric actuator (201) further actuates the transmission gear (203) via the shift block (202), and actuates the control rod (204) to rotate to the unlocked position via the second arm (2032); Wherein, step Y comprises: Y1. Push the handle body (3) inward from the outside of the door, forcing the handle body (3) to retract into the operating space (102). The handle body (3) actuates the transmission gear (203) through the intermediate gear (205). At this time, the second arm (2032) approaches the control rod (204); Y2. Further actuate the handle body (3) inwardly within the operating space (102) to the unlocked position, at which time the second arm (2032) actuates the control lever (204) to rotate to the unlocked position.

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