An electric release central control mechanism for a motor vehicle lock

Abstract

The application belongs to the technical field of automobile door lock, and provides an electric release central control mechanism for a motor vehicle lock, which comprises a shell, a driving part arranged on the shell, a worm arranged on the driving end of the driving part, a worm wheel rotatably arranged on the shell and engaged with the worm, and a locking assembly arranged on the shell and comprising a locking arm rotatably arranged on the shell and abutting against one end wall of the worm wheel, and an electric release connecting rod rotatably arranged on the shell and abutting against another end wall of the worm wheel. Compared with the prior art, the application has the advantages that the central control locking function, the central control unlocking function and the electric release function can be realized by one driving part, the worm wheel rotates in one direction to realize the central control locking in the first half and the electric release in the second half, the worm wheel rotates in another direction to realize the central control unlocking, the arrangement space of the vehicle lock in the automobile is reduced, and the total assembly cost of the vehicle lock is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile door lock, and particularly relates to an electric release central control mechanism for a motor vehicle lock. BACKGROUND

[0002] Automobiles are frequently used by people in life as a means of transportation, and in order to make customers more comfortable and convenient when using them, increase the experience, electronic control switch unlocking and improvement of mechanical structure to achieve switch convenience become particularly important.

[0003] The central control function and the electric release function in the motor vehicle lock need to be realized by at least two motors, at least one motor is used to realize the control of the central control locking function and the central control unlocking function, and the other motor is used to realize the control of the electric release function to automatically open the side door of the vehicle. Setting multiple motors not only affects the layout space of the automobile, but also increases the total assembly cost of the vehicle lock. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an electric release central control mechanism for a motor vehicle lock which reduces the layout space and is convenient to operate, in view of the status of the prior art.

[0005] The technical scheme adopted by the present application to solve the above technical problem is: an electric release central control mechanism for a motor vehicle lock is provided, comprising: a housing, a drive member is provided on the housing, a worm is provided on the drive end of the drive member;

[0006] A worm gear is rotatably provided on the housing, and the worm gear is engaged with the worm;

[0007] A locking assembly is provided on the housing, the locking assembly has a locking arm and an electric release connecting rod, the locking arm is rotatably provided on the housing and abuts against one end wall of the worm gear, and the electric release connecting rod is rotatably provided on the housing and abuts against the other end wall of the worm gear;

[0008] The worm gear has a first position, a second position and a third position, and the drive member can drive the worm gear to switch between the first position, the second position and the third position;

[0009] When the worm gear is in the first position, the locking arm can drive the externally provided coupling rod to rotate, realizing the central control locking function;

[0010] When the worm gear is in the second position, the electric release connecting rod can drive the externally provided release connecting rod to open the door lock;

[0011] When the worm gear is in the third position, the locking arm can drive the externally provided coupling rod to rotate, realizing the central control unlocking function.

[0012] In the electric release central control mechanism for the motor vehicle lock, the locking arm is provided with a first abutting part and a second abutting part, the first abutting part and the second abutting part are in different horizontal planes, one end wall of the worm wheel is provided with a first abutting block and a second abutting block, the first abutting block and the first abutting part are in movable abutment, the second abutting block and the second abutting part are in movable abutment, the electric release connecting rod is provided with a third abutting part, the other end wall of the worm wheel is provided with a third abutting block, and the third abutting block and the third abutting part are in movable abutment.

[0013] In the electric release central control mechanism for the motor vehicle lock, the locking arm is provided with a locking coupling connecting rod, the locking coupling connecting rod is slidably arranged on the housing, and drives the externally arranged coupling rod to rotate.

[0014] In the electric release central control mechanism for the motor vehicle lock, the housing is provided with a connecting shaft, the worm wheel is rotatably arranged on the connecting shaft, and a first torsional spring is arranged on the end of the worm wheel close to the first abutting block and the second abutting block, one end of the first torsional spring is connected with the worm wheel, and the other end of the first torsional spring is connected with the housing.

[0015] In the electric release central control mechanism for the motor vehicle lock, the locking arm is provided with a connecting hole and an eccentric spring, the housing is provided with a mounting part, one end of the eccentric spring is connected with the connecting hole, and the other end of the eccentric spring is connected with the mounting part.

[0016] When the driving part drives the worm wheel to rotate to the first position, the first abutting part is separated from the first abutting block, the eccentric spring is biased, and the locking arm abuts against the coupling rod;

[0017] When the driving part drives the worm wheel to rotate to the third position, the second abutting part is separated from the second abutting block, the eccentric spring is biased, and the locking arm is separated from the coupling rod.

[0018] In the electric release central control mechanism for the motor vehicle lock, the locking coupling connecting rod is provided with a fourth abutting part, and the fourth abutting part abuts against the externally arranged coupling rod.

[0019] In the electric release central control mechanism for the motor vehicle lock, the electric release connecting rod is provided with a second torsional spring and a fifth abutting part, one end of the second torsional spring is connected with the electric release connecting rod, the other end of the second torsional spring is connected with the housing, and the fifth abutting part abuts against the externally arranged release connecting rod.

[0020] In the above-mentioned electric release central control mechanism for the motor vehicle lock, a key rod is arranged on the housing and connected with the locking coupling link;

[0021] When the key rod rotates, the locking coupling link can be moved on the housing to realize the central control locking function and the central control unlocking function.

[0022] In the above-mentioned electric release central control mechanism for the motor vehicle lock, a central control switch is arranged on the housing and used for indicating the central control locking state and the central control unlocking state.

[0023] In the above-mentioned electric release central control mechanism for the motor vehicle lock, a connector is arranged on the housing and connected with the external counterpart.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] 1. The central control locking function, the central control unlocking function and the electric release function can be realized by one driving member, the worm gear rotates in one direction to realize the first half of the central control locking and the second half of the electric release, and the worm gear rotates in the other direction to realize the central control unlocking, so that the arrangement space of the vehicle lock in the automobile is reduced, and the total assembly cost of the vehicle lock is reduced.

[0026] 2. The locking arm is biased to the locking position or the unlocking position by the biasing action of the eccentric spring, so as to realize the central control locking function and the central control unlocking function respectively. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of an initial state of the electric release link;

[0028] Figure 2 is a structural schematic view of an initial state of the lock arm;

[0029] Figure 3 is a partial structural schematic view of the electric release central control mechanism for the motor vehicle lock;

[0030] Figure 4 is a structural schematic view of the worm gear at the first position;

[0031] Figure 5 is a structural schematic view of the worm gear at the second position;

[0032] Figure 6 is a structural schematic view of the worm gear at the third position.

[0033] In the drawings,

[0034] 1, housing; 100, worm wheel; 101, first abutting block; 102, second abutting block; 103, third abutting block; 104, connecting shaft; 105, first torsion spring; 106, key rod; 107, central control switch; 108, connector;

[0035] 2, driving member; 200, worm;

[0036] 3, locking assembly; 300, locking arm; 301, electric release connecting rod; 302, first abutting part; 303, second abutting part; 304, third abutting part; 305, locking coupling connecting rod; 306, connecting hole; 307, eccentric spring; 308, fourth abutting part; 309, second torsion spring; 310, fifth abutting part; 311, connecting part; 312, groove; 313, limiting block; 314, rotating shaft; 315, mounting part; 316, limiting part. DETAILED DESCRIPTION

[0037] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0038] As shown in the drawings, Figures 1 to 6 An electric release central control mechanism for a motor vehicle lock comprises a housing 1, a driving member 2, a worm 200, a worm wheel 100 and a locking assembly 3.

[0039] In this embodiment, the housing 1 is connected by bolts with a rear cover and a front cover, so as to ensure that the driving member 2, the worm 200, the worm wheel 100 and the locking assembly 3 installed in the housing 1 are not affected by the outside, and problems such as damage of parts and failure of the lock are avoided, thereby protecting the parts.

[0040] The driving member 2 is an electric motor, and the worm 200 is installed on the driving end of the electric motor. After the electric motor is started, the driving end of the electric motor can drive the worm 200 to rotate clockwise or counterclockwise. The worm wheel 100 is rotatably arranged on the housing 1 and is in meshing engagement with the worm 200. When the electric motor drives the worm 200 to rotate clockwise, the worm wheel 100 in meshing engagement with the worm 200 can rotate counterclockwise. When the electric motor drives the worm 200 to rotate counterclockwise, the worm wheel 100 in meshing engagement with the worm 200 can rotate clockwise.

[0041] The locking assembly 3 is arranged on the housing 1 and located at a side away from the driving member 2 of the worm wheel 100. The locking assembly 3 has a locking arm 300 and an electric release connecting rod 301. The locking arm 300 is rotatably arranged on the housing 1 and movably abuts against one end wall of the worm wheel 100. The electric release connecting rod 301 is rotatably arranged on the housing 1 and movably abuts against the other end wall of the worm wheel 100.

[0042] The worm wheel 100 has a first position, a second position and a third position, and the driving member 2 can drive the worm wheel 100 to switch between the first position, the second position and the third position;

[0043] As shown in Figure 2 and Figure 4 When the worm wheel 100 rotates from the initial position to the first position, one end wall of the worm wheel 100 can push the top locking arm 300 to rotate clockwise, and the worm wheel 100 pushes the locking arm 300 to rotate to the maximum position and then disengages from the locking arm 300, so that the locking arm 300 can drive the externally arranged coupling rod (not shown in the figure) to rotate, thereby realizing the central control locking function; as shown in Figure 5 When the worm wheel 100 is in the second position, the other end wall of the worm wheel 100 can push the electric release connecting rod 301 to rotate, and the electric release connecting rod 301 can drive the externally arranged release connecting rod (not shown in the figure) to rotate, thereby driving the pawl to open the door lock, thereby realizing the unlocking function of the side door; as shown in Figure 6 When the worm wheel 100 is in the third position, one end wall of the worm wheel 100 can push the top locking arm 300 to rotate counterclockwise, and the worm wheel 100 pushes the locking arm 300 to rotate to the maximum position and then disengages from the locking arm 300, so that the locking arm 300 can make the externally arranged coupling rod reset and rotate under the force of the torsional spring arranged thereon, thereby realizing the central control unlocking function.

[0044] Specifically, as shown in Figure 2 The locking arm 300 is provided with a first abutting portion 302 and a second abutting portion 303, the first abutting portion 302 and the second abutting portion 303 are located in different horizontal planes, one end wall of the worm wheel 100 is provided with a first abutting block 101 and a second abutting block 102, the first abutting block 101 and the first abutting portion 302 are in movable abutment, the second abutting block 102 and the second abutting portion 303 are in movable abutment, the electric release connecting rod 301 is provided with a third abutting portion 304, and the other end wall of the worm wheel 100 is provided with a third abutting block 103, the third abutting block 103 and the third abutting portion 304 are in movable abutment.

[0045] The first abutting portion 302 and the first abutting block 101 are located at the same horizontal height, and the second abutting portion 303 and the second abutting block 102 are located at the same horizontal height, thereby ensuring that when the worm wheel 100 rotates counterclockwise, the first abutting block 101 will not interfere with the second abutting portion 303, and when the worm wheel 100 rotates clockwise, the second abutting block 102 will not interfere with the first abutting portion 302, and the third abutting block 103 arranged on the other end wall of the worm wheel 100 is to ensure that when the worm wheel 100 rotates counterclockwise, the first half of the rotation realizes the central control locking function, and the second half is the electric release function.

[0046] It is worth mentioning that, as shown in Figure 3 The housing is provided with a limiting block 313, and as shown inFigure 2 As shown, the worm wheel 100 is further provided with a limiting portion 316, and the limiting portion 316 and the first abutting block 101 are both in active abutment with the limiting block 313. The worm wheel counterclockwise rotation 100 continues to push the electric release rod 315 to rotate until the worm wheel 100 is stopped by the limiting portion 316 on the shell 1 to reach the full stroke position. At this time, the electric release connecting rod 301 and the release connecting rod are also at the full stroke position. When the worm wheel rotates clockwise to realize the central control unlocking function, the first abutting block 101 is stopped by the limiting portion 316 to reach the full stroke position.

[0047] Further, the locking arm 300 is connected with a locking coupling connecting rod 305, the locking coupling connecting rod 305 is slidingly arranged on the shell 1, and drives the externally arranged coupling rod to rotate.

[0048] Since the locking arm 300 cannot effectively push the externally arranged coupling rod to rotate when rotating, the locking coupling connecting rod 305 is installed on the lower end of the locking arm 300. The lower end of the locking arm 300 is provided with a connecting portion 311, and a groove 312 is formed in the locking coupling connecting rod 305. The connecting portion 311 is inserted into the groove 312, and the locking coupling connecting rod 305 is slidingly arranged on the shell 1 to better push the coupling rod. It is worth mentioning that the shell 1 is provided with a guide block, and the locking coupling connecting rod 305 cooperates with the guide block, so as to more accurately and stably push the coupling rod to realize the central control locking function.

[0049] Further, the shell 1 is provided with a connecting shaft 104, and the worm wheel 100 is rotatably arranged on the connecting shaft 104. The end of the worm wheel 100 close to the first abutting block 101 and the second abutting block 102 is provided with a first torsional spring 105. One end of the first torsional spring 105 is connected with the worm wheel 100, and the other end of the first torsional spring 105 is connected with the shell 1.

[0050] When the motor is powered off, the first torsional spring 105 can drive the worm wheel 100 to rotate to the reset position by its torsional force, so that the worm wheel 100 is in the initial state, and the next group of actions is realized.

[0051] Specifically, the locking arm 300 is provided with a connecting hole 306 and an eccentric spring 307, and the shell 1 is provided with a mounting portion 315. One end of the eccentric spring 307 is connected with the connecting hole 306, and the other end of the eccentric spring 307 is connected with the mounting portion 315. When the driving part 2 drives the worm wheel 100 to rotate to the first position, the first abutting portion 302 is separated from the first abutting block 101, the eccentric spring 307 is biased, and the locking arm 300 is abutted against the coupling rod. When the driving part 2 drives the worm wheel 100 to rotate to the third position, the second abutting portion 303 is separated from the second abutting block 102, the eccentric spring 307 is biased, and the locking arm 300 is separated from the abutting coupling rod.

[0052] The connecting hole 306 is located between the rotation center of the locking arm 300 and the first abutment part 302. One end of the eccentric spring 307 is connected to the connecting hole 306, and the other end of the eccentric spring 307 is connected to the mounting part 315. When the worm gear 100 pushes the locking arm 300 to its maximum low-pressure position, it disengages from the locking arm 300. Figure 2 and Figure 4 When the locking arm 300 is in the near-locked position, the eccentric spring 307 is compressed to its limit, and the locking arm 300 is biased to the locked position due to the biasing effect of the eccentric spring 307. The coupling rod is also pushed to the locked position to realize the upper center control function. It should be noted that a child lock module is also provided in the housing. The child lock module realizes the child lock function of locking the rear of the vehicle. A torsion spring is sleeved on the locking arm 300 to cooperate with the child lock module.

[0053] Furthermore, a fourth abutment 308 is provided on the locking coupling link 305, and the fourth abutment 308 abuts against the externally provided coupling link.

[0054] The fourth abutment 308 has a cross section. The fourth abutment 308 can increase the contact area with the coupling rod, thereby better pushing the coupling rod.

[0055] Specifically, the electric release link 301 is provided with a second torsion spring 309 and a fifth abutment part 310. One end of the second torsion spring 309 is connected to the electric release link 301, and the other end of the second torsion spring 309 is connected to the housing 1. The fifth abutment part 310 abuts against the release link provided externally.

[0056] The housing 1 has a rotating shaft 314 corresponding to the electric release link 301. The second torsion spring 309 is sleeved on the rotating shaft 314, and the electric release link 301 is also installed on the rotating shaft 314, so that the electric release link 301 can rotate around the rotating shaft. After the third abutment block 103 and the second abutment part 303 move against each other, when the worm gear 100 rotates clockwise, the electric release link 301 can also be reset by the second torsion spring 309. The fifth abutment part 310 is provided so that it can contact the release link installed on the outside of the housing 1, thereby driving the pawl to open the door lock.

[0057] Specifically, a central control switch 107 is provided on the housing 1, which is used to indicate the central control lock status and the central control unlock status.

[0058] The housing 1 is equipped with a central control switch 107, which can determine whether the locking coupling rod 305 is abutting the coupling rod, thereby indicating the central control lock status.

[0059] Specifically, the housing 1 is provided with a connector 108, which is connected to an externally mounted device.

[0060] The connector is connected to electronic components such as the central control switch 107 and drive unit 2 in the vehicle. The plug of the connector is connected to the vehicle wiring harness (hand component) and receives BCM voltage through various switch states.

[0061] Specifically, a key lever 106 is provided on the housing 1, and the key lever 106 is connected to the locking coupling link 305. When the key lever 106 is rotated, it can drive the locking coupling link 305 to move on the housing 1, thereby realizing the central locking function and the central unlocking function.

[0062] Users can achieve central locking and unlocking functions not only through the motor, but also manually by using a key to rotate the key lever 106, which in turn actuates the locking coupling rod 305, thus achieving central locking and unlocking functions.

[0063] The working principle of the electric release control mechanism used in motor vehicle locks:

[0064] like Figures 1 to 2 The diagram shows the structure of the locking arm 300 in the unlocked state (initial state of the worm gear 100). When the user needs to implement the central locking function, the motor drives the worm gear 200 to rotate clockwise, thereby causing the worm gear 100, which meshes with the worm gear 200, to rotate counterclockwise. When the worm gear 100 rotates counterclockwise, the first abutting block 101 abuts against the first abutting part 302 of the locking arm 300. The first abutting block 101 presses against the first abutting part 302, causing the locking arm 300 to rotate clockwise. During the clockwise rotation, the locking arm 300 pushes the locking coupling rod 305 to move to the left along the housing 1, causing the fourth abutting part 308 on the locking coupling rod 305 to abut against the externally installed coupling rod and drive the coupling rod to rotate. At this time, the motor continues to rotate, and when the worm gear 100 pushes the locking arm 300 to its maximum position, it disengages from the locking arm 300. Figure 4 As shown, the locking arm 300 is in the near-locked position (the worm gear 100 is in the first position). Due to the biasing effect of the locking arm 300 spring, the locking arm 300 is biased to the locked position, and the coupling rod is also pushed to the locked position, thereby realizing the central locking function.

[0065] When the side door needs to be unlocked, the motor continues to rotate. After the worm gear 100 and the locking arm 300 disengage, it continues to rotate counterclockwise. The third abutment block 103 provided on the other end wall of the worm gear 100 moves against the third abutment part 304 of the electric release linkage 301 (the worm gear 100 rotates from the first position to the second position). Figure 5As shown, the fifth abutment part 310 of the electric release linkage 301 pushes the release linkage to open the door lock. At this time, the motor continues to rotate, and the worm gear 100 continues to push the electric release rod to rotate until the worm gear 100 is stopped by the limiting block 313 of the housing 1 and reaches the full stroke position. At this time, the electric release rod and the release linkage are also in the full stroke position.

[0066] When the worm gear 100 is in its full stroke position, one leg of the worm gear 100 return spring is fixed by the upper rib of the rear cover, and the other leg is fixed to the worm gear 100. At this time, the worm gear 100 return spring is in a stretched state. When the motor is powered off, the spring potential energy accumulated by the eccentric spring 307 will drive the worm gear 100 to rotate clockwise. At the same time, the motor is in a short-circuit state after being powered off. At this time, the motor is equivalent to a generator and will generate a reverse electromotive force to slow down the return speed of the worm gear 100. The worm gear 100 will stop rotating after returning to its initial position. At this time, there is some gap between the worm gear 100 and the locking rod.

[0067] When the user needs to unlock the central control system, the motor reverses, driving the worm gear 200 to rotate counterclockwise. This causes the worm wheel 100, which meshes with the worm gear 200, to rotate clockwise. As the worm wheel 100 rotates clockwise, the second abutment block 102 abuts against the second abutment part 303 of the locking arm 300. The second abutment block 102 presses against the second abutment part 303, causing the locking arm 300 to rotate counterclockwise. During this counterclockwise rotation, the locking arm 300 pushes the locking coupling rod 305 to move to the right along the housing 1, causing the fourth abutment part 308 on the locking coupling rod 305 to disengage from the externally installed coupling rod. At this time, the motor continues to rotate. Figure 6 As shown, when the worm gear 100 pushes the locking arm 300 to its maximum position, it disengages from the locking arm 300. The locking arm 300 is in a near-locked position (the worm gear 100 is in the third position). Due to the biasing effect of the locking arm 300 spring, the locking arm 300 is biased to the unlocked position. The coupling rod is reset and rotated by its own torsion spring, thereby realizing the central control unlocking function.

[0068] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0069] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0071] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. An electrically released central control mechanism for a motor vehicle lock, characterized in that, include: A housing, on which a driving component is provided, and a worm gear is provided on the driving end of the driving component; A worm gear is rotatably mounted on the housing, and the worm gear meshes with the worm. A locking assembly is disposed on the housing. The locking assembly has a locking arm and an electrically released link. The locking arm is rotatably disposed on the housing and moves against one end wall of the worm gear. The electrically released link is rotatably disposed on the housing and moves against the other end wall of the worm gear. The worm gear has a first position, a second position, and a third position, and the driving component can drive the worm gear to switch between the first position, the second position, and the third position; When the worm gear is in the first position, the locking arm can drive the externally installed coupling rod to rotate, thereby realizing the central locking function; When the worm gear is in the second position, the electric release linkage can drive the externally installed release linkage, thereby causing the pawl to open the door lock; The locking arm is provided with a first abutment and a second abutment, which are located on different horizontal planes. A first abutment block and a second abutment block are provided on one end wall of the worm gear, and the first abutment block movably abuts against the first abutment and the second abutment block movably abuts against the second abutment. A third abutment is provided on the electric release linkage, and a third abutment block is provided on the other end wall of the worm gear, which movably abuts against the third abutment. The electric release link is provided with a second torsion spring and a fifth abutment part. One end of the second torsion spring is connected to the electric release link, and the other end of the second torsion spring is connected to the housing. The fifth abutment part abuts against the release link provided externally. When the worm gear is in the third position, the locking arm can cause the externally mounted coupling rod to rotate, thereby realizing the central control unlocking function.

2. The electric release control mechanism for a motor vehicle lock according to claim 1, characterized in that, The locking arm is connected to a locking coupling rod, which is slidably mounted on the housing and drives the externally mounted coupling rod to rotate.

3. The electric release control mechanism for a motor vehicle lock according to claim 1, characterized in that, A connecting shaft is provided on the housing, the worm gear is rotatably mounted on the connecting shaft, and a first torsion spring is installed on the end of the worm gear near the first abutment block and the second abutment block. One end of the first torsion spring is connected to the worm gear, and the other end of the first torsion spring is connected to the housing.

4. The electric release control mechanism for a motor vehicle lock according to claim 1, characterized in that, The locking arm is provided with a connecting hole and an eccentric spring, and the housing is provided with a mounting part. One end of the eccentric spring is connected to the connecting hole, and the other end of the eccentric spring is connected to the mounting part. When the driving component drives the worm gear to rotate to the first position, the first abutting part disengages from the first abutting block, the eccentric spring is biased and drives the locking arm to press against the coupling rod; When the driving component drives the worm gear to rotate to the third position, the second abutting part disengages from the second abutting block, the eccentric spring is biased and drives the locking arm to disengage from the coupling rod.

5. The electric release control mechanism for a motor vehicle lock according to claim 2, characterized in that, The locking coupling rod is provided with a fourth abutment part, which abuts against the externally provided coupling rod.

6. The electric release control mechanism for a motor vehicle lock according to claim 2, characterized in that, The housing is provided with a key bar, which is connected to the locking coupling rod; When the key lever is turned, it can drive the locking coupling rod to move on the housing, thereby realizing the central locking and unlocking functions.

7. The electric release control mechanism for a motor vehicle lock according to claim 1, characterized in that, The housing is equipped with a central control switch, which is used to indicate the central control lock status and the central control unlock status.

8. The electric release control mechanism for a motor vehicle lock according to claim 1, characterized in that, The housing is provided with a connector, which is connected to an externally mounted handpiece.

Images