Electric unlocking lock for vehicle

Abstract

The utility model discloses a vehicle electric unlocking lock which comprises a shell body, the shell body is provided with a driving mechanism, a rocker arm assembly, a pawl assembly and a ratchet wheel assembly, the ratchet wheel assembly is used for moving and switching between a locking position and an unlocking position relative to a plunger latch, and a retaining structure is arranged between the pawl assembly and the ratchet wheel assembly. The pawl assembly is used for moving and switching between a keeping position and a releasing position relative to the ratchet assembly, and when the ratchet assembly moves to the locking position, the driving mechanism drives the pawl assembly to move to the keeping position, and the ratchet assembly is kept at the locking position through the keeping structure; the rocker arm assembly comprises an electric opening rocker arm and an inner opening rocker arm, and the rotating center shaft of the electric opening rocker arm and the rotating center shaft of the inner opening rocker arm are perpendicular to the rotating center shaft of the pawl assembly. The driving mechanism drives the electric opening rocker arm to rotate and drives the inner opening rocker arm to reversely rotate relative to the electric opening rocker arm, and the pawl assembly is driven to be away from the ratchet wheel assembly and moves to the release position from the holding position. The electric unlocking device has the effects of compact structure, safety and reliability in use and electric unlocking.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an electric unlocking device for a vehicle. Background Art

[0002] Cars are a means of transportation that people often use in their daily lives. Cars are becoming increasingly intelligent and electronic, making them more comfortable and convenient to use, and the sense of experience is greatly enhanced. The security of electronic information technology is constantly increasing. Electronically controlled door opening is a new type of car door lock with a simple and compact mechanical structure and good development prospects. Among them, the car door lock is an important component of the car body. It is a special component that integrates safety, functionality and processability. For car door locks, the transmission mechanism is a very important functional mechanism. The locking, unlocking, internal and external opening and other transmission functions of the door lock all require the transmission mechanism to achieve. However, the existing car door lock conversion mechanism system has a single function, and most of them can only meet the manual opening requirements. Therefore, it is necessary to design a new door lock transmission mechanism with electric opening. Utility Model Content

[0003] The utility model aims to provide a vehicle electric unlocking device, which has the effects of compact structure, safe and reliable use and electric unlocking.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions: an electric unlocking device for a vehicle, comprising a housing body, the housing body being provided with a driving mechanism, a rocker arm assembly, a pawl assembly and a ratchet assembly, the ratchet assembly being used to move and switch between a locking position and an unlocking position relative to a latch, a retaining structure being provided between the pawl assembly and the ratchet assembly, the pawl assembly being used to move and switch between a retaining position and a releasing position relative to the ratchet assembly, when the ratchet assembly moves to the locking position, the driving mechanism drives the pawl assembly to move to the retaining position, and the ratchet assembly is retained in the locking position by the retaining structure;

[0005] The rocker arm assembly includes an electric opening rocker arm and an inner opening rocker arm, and the rotation center axes of the electric opening rocker arm and the inner opening rocker arm are perpendicular to the rotation center axis of the pawl assembly; the driving mechanism drives the electric opening rocker arm to rotate, and drives the inner opening rocker arm to rotate in the opposite direction relative to the electric opening rocker arm, driving the pawl assembly away from the ratchet assembly, so that the pawl assembly moves from the holding position to the release position.

[0006] By adopting the above technical scheme, when the vehicle door is in a closed state, the ratchet assembly is in a locked position and the latch is locked and positioned, while the pawl assembly is in a holding position and the ratchet assembly is kept in the locked position by using the holding structure. When the vehicle door needs to be opened, the driving mechanism drives the electric opening rocker arm to rotate, and the electric opening rocker arm drives the inner opening rocker arm to rotate in the opposite direction, and the inner opening rocker arm then synchronously drives the pawl assembly to rotate to the release position, thereby releasing the holding state of the holding structure. At this time, by pulling the vehicle door outward, the latch drives the ratchet assembly to rotate toward the unlocked position until the ratchet assembly rotates to the unlocked position, so that the latch and the ratchet assembly are disengaged from each other to realize the opening of the vehicle door. By arranging the mounting surfaces of the electric opening rocker arm and the inner opening rocker arm and the mounting surface of the pawl to be perpendicular to each other, the space utilization rate of the utility model can be effectively improved, making the structure of the utility model more compact, and having the effects of compact structure, safe and reliable use, and electric unlocking.

[0007] The utility model is further configured as follows: the driving mechanism includes a driving motor, a worm and a worm wheel, the worm is coaxially fixed on the output shaft of the driving motor, the worm is meshed with the worm wheel, the electric opening rocker arm includes a first rotating arm and a second rotating arm, the worm wheel includes a toggle part, the toggle part is toggle-matched with the first rotating arm, and drives the second rotating arm to cooperate with the inner opening rocker arm.

[0008] By adopting the above technical solution, when the car door needs to be unlocked, the driving motor drives the worm to rotate synchronously, the worm drives the worm wheel to rotate, and the worm wheel drives the toggle part to rotate in the unlocking direction. The toggle part pushes the first rotating arm of the electric opening rocker arm to rotate, so that the second rotating arm of the electric opening rocker arm rotates synchronously and drives the inner opening rocker arm to rotate. The inner opening rocker arm then drives the pawl assembly to rotate in the direction of the release position, preparing for the opening of the car door.

[0009] The utility model is further configured as follows: the pawl assembly includes an opening plate, a linkage seat and a pawl, the opening plate, the linkage seat and the pawl are rotatably connected to the outer shell body through a pin shaft, the linkage seat cooperates with the opening plate stopper, a rotation-stopping structure is provided between the pawl and the linkage seat, the pawl is rotationally connected to the linkage seat through the rotation-stopping structure, and the opening plate cooperates with the inner-opening rocker arm.

[0010] By adopting the above technical solution, the rotation of the inner opening rocker arm will drive the opening plate to rotate. By utilizing the stopping effect between the linkage seat and the opening plate, the opening plate will drive the linkage seat to rotate. Then, by utilizing the stopping limit of the anti-rotation structure between the pawl and the linkage seat, the pawl and the linkage seat can rotate synchronously.

[0011] The utility model is further configured as follows: the retaining structure comprises a slot and an abutment portion, the slot is provided at the end of the pawl, the abutment portion is extended on the ratchet assembly, and the abutment portion cooperates with the slot stopper.

[0012] By adopting the above technical solution, when the ratchet assembly is in the locked position, the abutment portion of the ratchet assembly abuts against the slot at the end of the pawl, so that the ratchet assembly can be firmly locked and positioned with the latch to prevent the vehicle door from being accidentally opened.

[0013] The utility model is further configured as follows: a first reset torsion spring is provided between the linkage seat and the shell body, and the first reset torsion spring always has a movement tendency to drive the latch claw to reset toward the holding position direction.

[0014] By adopting the above technical solution, when the vehicle door is closed and the ratchet assembly is in the locked position, the first reset torsion spring can increase the abutment and holding force between the pawl and the ratchet assembly, thereby improving the locking reliability of the latch; in addition, when the driving mechanism drives the pawl to move to the release position relative to the ratchet assembly and the inward-opening rocker arm is reset, the elastic reset force of the first reset torsion spring can cause the pawl assembly to automatically rotate toward the holding position and reset.

[0015] The utility model is further configured as follows: the anti-rotation structure includes an anti-rotation groove and an anti-rotation fitting portion, the anti-rotation fitting portion is arranged on the pawl, the linkage seat is provided with an extension portion, the anti-rotation groove is opened on the extension portion, and the anti-rotation fitting portion is arranged in the anti-rotation groove to prevent rotation.

[0016] By adopting the above technical solution, the linkage seat can be rotated and the latch pawl can be driven to rotate synchronously.

[0017] The utility model is further configured as follows: the shell body is provided with an emergency unlocking structure, the emergency unlocking structure comprises an emergency pull cable connected to the opening plate, and the opening plate is provided with a pull hole corresponding to the emergency pull cable.

[0018] By adopting the above technical solution, in an emergency, the driver can pull the emergency cable, use the emergency cable to pull the opening plate to drive the pawl assembly to rotate toward the release position, and then push the door outward to achieve emergency unlocking between the latch and the ratchet assembly.

[0019] The utility model is further configured as follows: the ratchet assembly comprises a ratchet and a second reset torsion spring, and the second reset torsion spring always has a movement tendency to drive the ratchet to rotate toward the unlocking position.

[0020] By adopting the above technical solution, when the vehicle door is closed and the ratchet assembly is in the locked position, the second return torsion spring can increase the abutting and retaining force between the ratchet and the pawl, thereby improving the locking reliability of the latch.

[0021] The utility model is further configured as follows: the shell body includes a plurality of buffer parts, the pawl assembly includes a limiting part, and the limiting part and the ratchet assembly cooperate with the corresponding buffer parts in limiting and buffering.

[0022] By adopting the above technical solution, multiple buffer parts can reduce the noise when the vehicle door is opened and closed.

[0023] The utility model is further configured as follows: a position sensing module is arranged in the shell body, the position sensing module comprises a plurality of signal switches, and the plurality of signal switches are feedback-coordinated with the corresponding ratchet assembly, pawl assembly and driving mechanism.

[0024] By adopting the above technical solution, the position sensing module receives signal feedback from each signal switch, and can monitor the position status of the drive mechanism, pawl assembly and ratchet assembly in real time, which facilitates the system to control and adjust the stable operation between various mechanisms, and improves the stability and reliability of the utility model during operation.

[0025] In summary, the utility model has the following beneficial effects:

[0026] The locking mechanism of the electric door lock and the locking mechanism of the inner door lock are designed to move in a direction that the locking mechanism is in a locked state, and the locking mechanism of the electric door lock is designed to move in a direction that the locking mechanism is in a locked state, and the locking mechanism of the electric door lock is designed to move in a direction that the locking mechanism is in a locked state, and the locking mechanism of the electric door lock is designed to move in a direction that the locking mechanism is in a locked state, and the locking mechanism of the electric door lock is designed to move in a direction that the locking mechanism is in a locked state, and the locking mechanism of the electric door lock is designed to move in a direction that the locking mechanism is in a locked state, and the BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model when the ratchet assembly and the lock latch are in a fully locked state.

[0028] Figure 2 It is a structural diagram of the utility model, in which the rear cover and the emergency cable are not shown.

[0029] Figure 3 This utility model Figure 1 The top view of the base and the bottom plate are not shown.

[0030] Figure 4 It is an exploded view of the utility model.

[0031] Figure 5 It is an exploded view of the utility model from another perspective.

[0032] Figure 6 It is an internal view of the ratchet assembly and the latch of the utility model in a fully locked state.

[0033] Figure 7 This utility model Figure 6 Another perspective of the view.

[0034] Figure 8 It is a structural diagram of the ratchet assembly of the utility model.

[0035] Fig. 9 It is an exploded view of the pawl assembly of the utility model.

[0036] Fig.10 It is a structural diagram of the utility model when the ratchet assembly and the latch are in a semi-locked state.

[0037] Fig.11 This utility model Fig.10 Interior view of.

[0038] Fig.12 It is a structural diagram of the ratchet assembly of the utility model in an unlocked state.

[0039] Fig.13 This utility model Fig.12 Interior view of.

[0040] Fig.14 This utility model Fig.13 Another perspective of the view.

[0041] In the figure: 1. Shell body; 11. Base; 111. Buffering part; 1111. First buffer block; 1112. Second buffer block; 12. Upper cover; 13. Back cover; 14. Bottom plate; 141. Limiting column; 2. Driving mechanism; 21. Driving motor; 22. Worm; 23. Worm gear; 231. Toggle part; 232. Pressing part; 3. Rocker arm assembly; 31. Electric open rocker arm; 310. Third reset torsion spring; 311. First rotating arm; 312. Second rotating arm; 32. Inner open rocker arm; 321. Fourth reset torsion spring; 4. Ratchet assembly; 4 0. Pin shaft; 41. Opening plate; 41a. Pull hole; 411. Emergency pull rope; 42. Linkage seat; 421. First reset torsion spring; 422. Extension portion; 422a. Anti-rotation groove; 423. Limiting portion; 43. Claw; 43a. Slot; 431. Anti-rotation mating portion; 5. Ratchet assembly; 51. Ratchet; 51a. U-shaped lock groove; 511. Abutment portion; 512. Half-lock buckle; 5121. Stop portion; 52. Second reset torsion spring; 61. First signal switch; 62. Second signal switch; 63. Third signal switch; 7. Latch. DETAILED DESCRIPTION

[0042] The utility model is further described below in conjunction with the accompanying drawings.

[0043] A vehicle electric unlocking system, such as Figure 1-2 , Figure 10-14 As shown, it includes a shell body 1, which includes a base 11, an upper cover 12, a back cover 13 and a bottom plate 14. A driving mechanism 2 and a rocker arm assembly 3 are arranged between the upper cover 12 and the back cover 13. A pawl assembly 4 and a ratchet assembly 5 are arranged on the bottom plate 14. The ratchet assembly 5 is used to move and switch between a locked position and an unlocked position relative to the latch 7. A retaining structure is provided between the pawl assembly 4 and the ratchet assembly 5. The pawl assembly 4 is used to move and switch between a retained position and a released position relative to the ratchet assembly 5. When the ratchet assembly 5 moves to the locked position, the driving mechanism 2 drives the pawl assembly 4 to move to the retained position, and the ratchet assembly 5 is retained in the locked position through the retaining structure; the rocker arm assembly 3 includes an electric opening rocker arm 31 and an inner opening rocker arm 32. The rotation center axis of the electric opening rocker arm 31 and the inner opening rocker arm 32 is aligned with the rotation center axis of the pawl assembly 4. The driving center axes are perpendicular to each other; the driving mechanism 2 drives the electric opening rocker arm 31 to rotate, and drives the inner opening rocker arm 32 to rotate in the opposite direction relative to the electric opening rocker arm 31, driving the pawl assembly 4 away from the ratchet assembly 5, so that the pawl assembly 4 moves from the holding position to the release position; the pawl assembly 4 includes an opening plate 41, and the shell body 1 is provided with an emergency unlocking structure, the emergency unlocking structure includes an emergency cable 411 connected to the opening plate 41, one end of the opening plate 41 extends out of the upper cover 12, and the part of the opening plate 41 extending out of the upper cover 12 is provided with a pulling hole 41a corresponding to the emergency cable 411. In an emergency, the driver can pull the emergency cable 411, and use the emergency cable 411 to pull the opening plate 41 to drive the pawl assembly 4 to rotate toward the release position, and then push the door outward to achieve emergency unlocking between the latch 7 and the ratchet assembly 5.

[0044] like Figure 2-7As shown, the drive mechanism 2 includes a drive motor 21, a worm 22 and a worm wheel 23 arranged between the upper cover 12 and the rear cover 13. The worm 22 is coaxially fixed on the output shaft of the drive motor 21, and the worm 22 is meshed with the worm wheel 23. The electric opening rocker arm 31 includes a first rotating arm 311 and a second rotating arm 312. The worm wheel 23 includes a toggle portion 231. The contact surface between the toggle portion 231 and the first rotating arm 311 is set as an arc surface. The toggle portion 231 is toggle-matched with the first rotating arm 311, and drives the second rotating arm 312 to cooperate with the inner opening rocker arm 32. When the car door needs to be unlocked, the drive motor 21 drives the worm 22 to rotate synchronously, the worm 22 drives the worm wheel 23 to rotate, and the worm wheel 23 drives the toggle portion 231 to rotate in the unlocking direction, and the toggle portion 231 pushes the first rotating arm of the electric opening rocker arm 31 311 rotates, so that the second rotating arm 312 of the electric opening rocker arm 31 rotates synchronously and drives the inner opening rocker arm 32 to rotate, and the inner opening rocker arm 32 then drives the pawl assembly 4 to rotate toward the release position, preparing for the opening of the car door; in this embodiment, a third reset torsion spring 310 is provided between the electric opening rocker arm 31 and the upper cover 12, and a fourth reset torsion spring 321 is provided between the inner opening rocker arm 32 and the upper cover 12. The electric opening rocker arm 31 and the inner opening rocker arm 32 are reset by controlling the driving motor 21 to reverse, and the driving motor 21 drives the worm gear 23 to reverse through the worm 22, and the worm gear 23 then drives the toggle part 231 away from the first rotating arm 311 of the electric opening rocker arm 31, and utilizes the elastic force of the third reset torsion spring 310 and the fourth reset torsion spring 321 to drive the corresponding electric opening rocker arm 31 and the inner opening rocker arm 32 to reset.

[0045] like Figure 4-9As shown, the pawl assembly 4 includes an opening plate 41, a linkage seat 42 and a pawl 43. The opening plate 41, the linkage seat 42 and the pawl 43 are rotatably connected to the shell body 1 through a pin shaft 40. The linkage seat 42 is provided with a collision stop portion, and the linkage seat 42 cooperates with the opening plate 41 through the collision stop portion. A stop structure is provided between the pawl 43 and the linkage seat 42, and the pawl 43 is connected to the linkage seat 42 through the stop structure. The execution end of the opening plate 41 is in conflict with the inner opening rocker arm 32, and the rotation of the inner opening rocker arm 32 will drive the opening plate 41 to rotate, and the use of The stop function between the linkage seat 42 and the opening plate 41 causes the opening plate 41 to drive the linkage seat 42 to rotate, and then the stop limit of the anti-rotation structure between the pawl 43 and the linkage seat 42 is used to make the pawl 43 rotate synchronously with the linkage seat 42; the holding structure includes a slot 43a and an abutment portion 511, the slot 43a is opened at the end of the pawl 43, the abutment portion 511 is extended on the ratchet assembly 5, the abutment portion 511 and the slot 43a stop cooperation, when the ratchet assembly 5 is in the locked position, the abutment portion 511 of the ratchet assembly 5 abuts on the pawl 43 The first reset torsion spring 421 always has a tendency to drive the pawl 43 to return to the holding position. When the door is closed and the ratchet assembly 5 is in the locked position, the first reset torsion spring 421 can increase the holding force between the pawl 43 and the ratchet assembly 5, thereby improving the locking reliability of the latch 7. In addition, when the driving mechanism 2 drives the pawl 43 relative to the locking position, the first reset torsion spring 421 can also increase the locking force between the pawl 43 and the ratchet assembly 5, thereby improving the locking reliability of the latch 7. When the ratchet assembly 5 moves to the release position and the inward-opening rocker arm 32 is reset, the elastic reset force of the first reset torsion spring 421 can be used to automatically rotate and reset the pawl assembly 4 in the direction of the holding position; the anti-rotation structure includes a anti-rotation groove 422a and a anti-rotation fitting portion 431, the anti-rotation fitting portion 431 is arranged on the pawl 43, the linkage seat 42 is provided with an extension portion 422, the anti-rotation groove 422a is opened on the extension portion 422, and the anti-rotation fitting portion 431 is anti-rotationally arranged in the anti-rotation groove 422a, so that the linkage seat 42 rotates and the pawl 43 is driven to rotate synchronously.

[0046] like Figure 3-6 and Figure 10-11As shown, the ratchet assembly 5 includes a ratchet 51 and a second return torsion spring 52. The ratchet 51 is provided with a U-shaped locking groove 51a, and the U-shaped locking groove 51a is used to lock and position with the latch 7. The bottom plate 14 is provided with a limiting column 141, and the limiting column 141 and the ratchet 51 are stopped and limited. The second return torsion spring 52 always has a movement tendency to drive the ratchet 51 to rotate toward the unlocking position. When the car door is closed and the ratchet assembly 5 is in the locked position, the second return torsion spring 52 can increase the abutting holding force between the ratchet 51 and the pawl 43, thereby improving the locking reliability of the latch 7; the upper cover 12 is provided with a plurality of buffer portions 111, and the buffer portion 111 includes a first buffer block 1111 and a second buffer block 1112. The pawl assembly 4 includes a limiting portion 423, and the first buffer block 1111 cooperates with the limiting portion 423 for limiting buffering. The shell body 1 includes a second buffer block 1112, and the second buffer block 1112 cooperates with the ratchet assembly 5 for limiting buffering. When the door is in the unlocked state, the elastic force of the second return torsion spring 52 will drive the ratchet 51 to the unlocked position. At this time, the stopping effect of the stopper 5121 and the latch 43 can be used to prevent the second return torsion spring 52 from driving the ratchet 51 to rotate excessively in the unlocking direction, resulting in the subsequent inability to reset.

[0047] like Figure 2 , Figure 6 , Fig.11 and Figure 13-14 As shown, a position sensing module is provided in the shell body 1, and the position sensing module includes three signal switches, which are respectively a first signal switch 61, a second signal switch 62 and a third signal switch 63. The worm gear 23 includes a pressing portion 232, and the first signal switch 61 is pressed and matched with the pressing portion 232 to feedback the real-time position of the worm gear 23, the second signal switch 62 is pressed and matched with the limiting portion 423 to feedback the real-time position of the pawl assembly 4, and the third signal switch 63 is pressed and matched with the ratchet 51 to feedback the real-time position of the ratchet assembly 5. The position sensing module can monitor the position status of the driving mechanism 2, the pawl assembly 4 and the ratchet assembly 5 in real time by receiving signal feedback from each signal switch, so as to facilitate the system to control and adjust the stable operation between each mechanism, and improve the stability and reliability of the utility model during operation.

[0048] The basic working principle of the utility model is as follows: when the vehicle door is in a closed state, the ratchet assembly 5 is in a locked position and locks the latch 7, while the pawl assembly 4 is in a holding position and uses a holding structure to keep the ratchet assembly 5 in the locked position. When the vehicle door needs to be opened, the driving mechanism 2 drives the electric opening rocker arm 31 to rotate, and the electric opening rocker arm 31 drives the inner opening rocker arm 32 to rotate in the opposite direction, and the inner opening rocker arm 32 drives the opening plate 41 to rotate toward the release position, and the opening plate 41 drives the pawl 43 to rotate in the same direction through the linkage seat 42, so that the card slot 43a of the pawl 43 and the contact of the ratchet 51 are in contact with each other. The connecting parts 511 are disengaged from each other, thereby realizing mutual unlocking of the ratchet assembly 5 and the pawl assembly 4. At this time, the vehicle door is pulled outward, so that the latch 7 drives the ratchet assembly 5 to rotate toward the unlocking position until the ratchet assembly 5 rotates to the unlocking position, so that the latch 7 and the ratchet assembly 5 are disengaged from each other to realize opening of the vehicle door. By arranging the mounting surfaces of the electric opening rocker arm 31 and the inner opening rocker arm 32 to be perpendicular to the mounting surface of the pawl, the space utilization rate of the utility model can be effectively improved, making the structure of the utility model more compact, having the effects of compact structure, safe and reliable use, and electric unlocking.

[0049] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A vehicle electric unlocking device, comprising a housing body (1), the housing body (1) being provided with a driving mechanism (2), a rocker arm assembly (3), a pawl assembly (4) and a ratchet assembly (5), the ratchet assembly (5) being used for moving and switching between a locking position and an unlocking position relative to a latch, characterized in that: A retaining structure is provided between the pawl assembly (4) and the ratchet assembly (5), and the pawl assembly (4) is used to move and switch between a retaining position and a releasing position relative to the ratchet assembly (5); when the ratchet assembly (5) moves to the locking position, the driving mechanism (2) drives the pawl assembly (4) to move to the retaining position, and the ratchet assembly (5) is retained in the locking position through the retaining structure; The rocker arm assembly (3) comprises an electric opening rocker arm (31) and an inner opening rocker arm (32), and the rotation center axes of the electric opening rocker arm (31) and the inner opening rocker arm (32) are perpendicular to the rotation center axis of the pawl assembly (4); the driving mechanism (2) drives the electric opening rocker arm (31) to rotate, and drives the inner opening rocker arm (32) to rotate in the opposite direction relative to the electric opening rocker arm (31), drives the pawl assembly (4) away from the ratchet assembly (5), and moves the pawl assembly (4) from the holding position to the releasing position.

2. The electric unlocking device for a vehicle according to claim 1, characterized in that: The driving mechanism (2) comprises a driving motor (21), a worm (22) and a worm wheel (23); the worm (22) is coaxially fixed on the output shaft of the driving motor (21); the worm (22) is meshed with the worm wheel (23); the electric opening rocker arm (31) comprises a first rotating arm (311) and a second rotating arm (312); the worm wheel (23) comprises a toggle portion (231); the toggle portion (231) is toggle-matched with the first rotating arm (311) and drives the second rotating arm (312) to be linked with the inner opening rocker arm (32).

3. The electric unlocking device for vehicle according to claim 1, characterized in that: The pawl assembly (4) includes an opening plate (41), a linkage seat (42) and a pawl (43); the opening plate (41), the linkage seat (42) and the pawl (43) are rotatably connected to the shell body (1) via a pin shaft (40); the linkage seat (42) and the opening plate (41) are engaged in a stopper manner; a rotation-stopping structure is provided between the pawl (43) and the linkage seat (42); the pawl (43) is rotationally connected to the linkage seat (42) via the rotation-stopping structure; and the opening plate (41) is in contact with the inner opening rocker arm (32).

4. The electric unlocking device for vehicle according to claim 3, characterized in that: The retaining structure comprises a slot (43a) and an abutment portion (511), wherein the slot (43a) is provided at the end of the pawl (43), and the abutment portion (511) is extended and arranged on the ratchet assembly (5), and the abutment portion (511) cooperates with the slot (43a) to stop.

5. The electric unlocking device for vehicle according to claim 3, characterized in that: A first return torsion spring (421) is provided between the linkage seat (42) and the housing body (1), and the first return torsion spring (421) always has a tendency to drive the latch pawl (43) to return to the holding position.

6. The electric unlocking device for vehicle according to claim 3, characterized in that: The anti-rotation structure comprises an anti-rotation groove (422a) and an anti-rotation fitting portion (431), wherein the anti-rotation fitting portion (431) is arranged on the latch claw (43), the linkage seat (42) is provided with an extension portion (422), the anti-rotation groove (422a) is opened on the extension portion (422), and the anti-rotation fitting portion (431) is arranged in the anti-rotation groove (422a) for anti-rotation.

7. The electric unlocking device for vehicle according to claim 3, characterized in that: The housing body (1) is provided with an emergency unlocking structure, the emergency unlocking structure comprising an emergency pull rope (411) connected to the opening plate (41), and the opening plate (41) is provided with a pull hole (41a) corresponding to the emergency pull rope (411).

8. The electric unlocking device for vehicle according to claim 1, characterized in that: The ratchet assembly (5) comprises a ratchet (51) and a second return torsion spring (52), wherein the second return torsion spring (52) always has a movement tendency to drive the ratchet (51) to rotate towards the unlocking position.

9. The electric unlocking device for vehicle according to claim 1, characterized in that: The housing body (1) comprises a plurality of buffer parts (111), the pawl assembly (4) comprises a limiting part (423), and the limiting part (423) and the ratchet assembly (5) cooperate with the corresponding buffer parts (111) in limiting and buffering manner.

10. The electric unlocking device for vehicle according to claim 1, characterized in that: A position sensing module is arranged in the housing body (1), and the position sensing module comprises a plurality of signal switches, and the plurality of signal switches are feedback-coordinated with the corresponding ratchet assembly (5), pawl assembly (4) and driving mechanism (2).

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