Electric unlocking structure with universal super lock function

Abstract

The invention relates to the technical field of vehicle door locks, and discloses an electric unlocking structure with a universal super lock function. The structure comprises a shell, a central control locking assembly and a child protection assembly. The central control locking assembly is provided with a locking transmission rod capable of linearly moving, and a super lock protruding head is arranged on the locking transmission rod. The child protection assembly is provided with a rotatable child protection gear, and a super lock contact head is arranged on the child protection gear. Through mechanical coupling of the super lock protruding head and the super lock contact head, mutual conversion between rotary motion and linear motion is achieved. When the child protection lock is locked, the child protection gear pushes the locking transmission rod to move, and the central control lock is triggered; when the central control is unlocked, the locking transmission rod pokes the child protection gear to rotate, and child protection locking is relieved. According to the structure, through simple and reliable mechanical linkage, synchronous locking and linkage unlocking of the super lock function are achieved, redundant parts are avoided, and the integration level and reliability of a system are improved.

Description

Technical Field

[0001] This application relates to the field of vehicle door lock technology, and in particular to an electric unlocking structure with universal super lock function. Background Technology

[0002] With the increasing demands for automotive security, the superlock function, as a crucial feature for enhancing vehicle anti-theft performance, has become standard equipment on mid-to-high-end models in the international market. Unlike traditional central locking systems that only lock the outer door handles, the superlock simultaneously locks both the inner and outer release channels of the doors, greatly enhancing the passive security of the vehicle when unattended. Currently, this function is widely used in exported models and is one of the key technologies reflecting a vehicle's security level.

[0003] Current passenger car door locks often rely on adding extra actuators or significantly modifying the existing structure to implement superlock functionality. Common methods include reusing the child safety motor to control the internal release channel and using the central locking motor to control the external release channel, or directly adding a separate motor dedicated to the superlock function. While these solutions achieve the function, they inevitably introduce redundant parts, leading to variations in component structures, increasing system complexity and manufacturing costs, and also placing higher demands on installation space and transmission reliability. Summary of the Invention

[0004] To address one or more of the problems existing in the prior art, this application provides an electric unlocking structure with a universal super lock function, comprising:

[0005] The housing forms an internal space for component installation, and the outer side of the housing is rotatably provided with a locking tongue and a pawl that can engage with each other;

[0006] A central locking assembly is disposed within the housing and includes a locking transmission rod that can be linearly moved by a motor, the locking transmission rod having a super-locking protrusion.

[0007] A child safety component, housed within the housing, includes a child safety gear that can be rotated by a motor, the child safety gear being equipped with a super-lock contact head;

[0008] The spatial positions of the super lock protruding head and the super lock contact head are configured to abut against each other and transmit movement, such that:

[0009] When the child safety component is activated and locked, the rotational motion of the child safety gear is converted into a thrust on the superlock protrusion through the superlock contact head, forcing the locking transmission rod to move linearly, thereby triggering the central locking component to enter the locking state, so as to realize the superlock locking.

[0010] When the central locking component is driven to unlock, the linear movement of the locking transmission rod is converted into a turning force on the super lock contact head through the super lock protrusion, forcing the child safety gear to rotate, thereby driving the child protection component to release the locked state and realize the super lock unlocking.

[0011] Optionally, the central locking component further includes:

[0012] Electric motor start;

[0013] An electrically operated gear meshes with the output shaft of the electrically operated motor.

[0014] The collision unlocking linkage is movably connected to the electrically opening gear and the locking transmission rod respectively, and is used to convert the rotational motion of the electrically opening gear into the linear movement of the locking transmission rod through the transmission mechanism;

[0015] A central locking mechanism is connected to the locking transmission rod to achieve central locking.

[0016] Optionally, the collision unlocking linkage is rotatably housed in a groove on one side of the electrically operated gear; the collision unlocking linkage is provided with a collision unlocking connecting shaft, and one end of the locking transmission rod is provided with an elongated hole, through which the collision unlocking connecting shaft passes, forming the movable connection; the rotational motion of the electrically operated gear drives the collision unlocking linkage to swing, and through the cooperation of the collision unlocking connecting shaft and the elongated hole, drives the locking transmission rod to move linearly.

[0017] Optionally, the central locking assembly further includes a positioning self-locking mechanism, which includes a wave-shaped collision unlocking spring and an arc-shaped protrusion formed on the side of the locking transmission rod. The wave-shaped collision unlocking spring is fixedly installed in the housing, and the arc-shaped protrusion matches the trough of the collision unlocking spring to achieve self-locking in the central locking or unlocking position.

[0018] Optionally, the child protection component further includes:

[0019] The child safety motor is fixedly installed inside the housing;

[0020] The child safety gear meshes with the output shaft of the child safety motor;

[0021] The internal release transmission rod has a sliding channel at its tail end;

[0022] The internal release coupling rod is slidably disposed within the sliding channel;

[0023] The child safety control lever has one end rotatably connected to the child safety gear, and the other end extends to form an arc-shaped channel cover; wherein:

[0024] The arc-shaped channel cover covers the inner release coupling rod and is used to drive the inner release coupling rod to move.

[0025] The electric unlocking structure also includes an internal release component, which comprises:

[0026] The inner release connecting rod is coaxially rotatably configured with the inner release transmission rod.

[0027] The inner release connecting rod abuts against the inner release coupling rod to cause:

[0028] When the inner release coupling rod is located at the beginning of the sliding channel, the inner release connecting rod rotates and abuts against the inner release coupling rod, driving the inner release transmission rod to work together to complete the inner release action;

[0029] When the child health insurance is locked, the child health insurance gear drives the child health insurance lever to push the inner release coupling rod to the end of the sliding channel, causing the inner release connecting rod to disengage from the inner release coupling rod, thus disabling the inner release function and locking the child health insurance.

[0030] Optionally, the pediatric safety lever body is provided with a pediatric safety lever running channel, and a limiting protrusion is fixedly provided on the inner wall of the housing. The limiting protrusion is embedded in the pediatric safety lever running channel to constrain the displacement trajectory of the pediatric safety lever.

[0031] Optionally, the housing includes a first mounting housing, a second mounting housing, and an L-shaped top cover. The first mounting housing and the second mounting housing are respectively fixedly assembled with the L-shaped top cover to obtain an L-shaped housing, which has a component installation space inside.

[0032] The central locking mechanism in the central locking assembly is disposed on the first mounting housing in the assembly installation space;

[0033] The electric start motor, electric start gear, collision unlocking linkage, and child protection component of the central locking assembly are disposed on the second mounting housing in the component installation space.

[0034] The above-mentioned one or more technical solutions have at least the following beneficial effects:

[0035] Firstly, this solution achieves efficient linkage between the central locking component and the child safety component through a direct mechanical coupling design between the superlock protruding head and the superlock contact head. This coupling mechanism converts the rotational motion of the child safety gear into the linear displacement of the locking transmission rod, and vice versa, without relying on complex electronic controls or additional actuators. This design not only simplifies the transmission path but also significantly improves the system's response speed and operational reliability. For example, when the child safety lock is triggered, the thrust of the child safety gear can simultaneously drive the central locking component into the locked state, ensuring that the dual release channels inside and outside the door are immediately blocked; while when the central locking is unlocked, it can reverse the linkage to release the child safety lock, realizing bidirectional automated coordination of the superlock function.

[0036] Secondly, this structure achieves high integration and component simplification. Traditional solutions require the addition of independent motors or reuse of multiple actuators, leading to component redundancy and structural variations. This application, however, reuses the locking transmission rod of the central locking component and the child safety gear of the child safety component as the core transmission medium, directly transmitting power through their spatial interference. This design avoids the introduction of redundant sensors, control units, or dedicated actuators, reducing manufacturing costs and failure rates while optimizing installation space utilization. For example, the housing adopts an L-shaped split design (first mounting housing, second mounting housing, and L-shaped top cover), integrating modules such as the central locking mechanism, electric start motor, and child safety motor in separate sections, further enhancing the system's compactness and maintainability.

[0037] Furthermore, this application enhances system stability through mechanical self-locking and trajectory constraint mechanisms. The arc-shaped protrusion on the side of the locking transmission rod and the wave-shaped collision unlocking spring fixed inside the housing form a positioning self-locking structure, which can achieve precise locking in the unlocked or locked position and prevent accidental displacement caused by vibration; the child safety lever constrains the movement trajectory through the cooperation of the limiting protrusion and the running channel, ensuring the displacement accuracy of the internal release coupling rod. These designs together ensure the reliable maintenance of the final state of the action. For example, when the child safety is released, the central locking state can still be maintained independently, avoiding the risk of functional mutual exclusion.

[0038] Finally, this application enhances functional scalability and compatibility. The modular design of the superlock protrusion and contact head can be adapted to transmission components of different shapes (such as elongated protrusions and cylindrical contact heads), while supporting flexible operating logic that prioritizes either central locking or child safety locking. This versatility allows for seamless integration into various vehicle door lock systems, meeting the anti-theft needs of diverse vehicle models, and providing a cost-effective superlock solution, especially for export models. Furthermore, the mechanical linkage's advantage over electronic control logic lies in its strong anti-interference capability, meeting the stringent environmental tolerance requirements of automotive components.

[0039] In summary, the electric unlocking structure provided in this application demonstrates significant advantages in terms of functional implementation, cost control, spatial layout, and operational stability, providing an efficient and universal technical path for the widespread adoption of super lock functions. Attached Figure Description

[0040] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the embodiments of the present application to explain the application and do not constitute a limitation thereof. In the drawings:

[0041] Figure 1 This is a schematic diagram of the external structure of an electric unlocking structure with universal superlock function provided in an exemplary embodiment of this application;

[0042] Figure 2 This is a schematic diagram of the external structure of an electric unlocking structure with universal superlock function provided in an exemplary embodiment of this application from another angle;

[0043] Figure 3 This is a schematic diagram of the unlocking state structure of an electric unlocking structure with universal super lock function provided in an exemplary embodiment of this application;

[0044] Figure 4 This is a schematic diagram of the locked state structure with universal super lock function provided in an exemplary embodiment of this application;

[0045] Figure 5 This is a schematic diagram of a central locking component with universal super lock function provided in an exemplary embodiment of this application;

[0046] Figure 6 This is a schematic diagram of the locked state structure from another angle, provided by an exemplary embodiment of this application, which has a general-purpose super lock function;

[0047] Figure 7 This is a partial structural diagram of a central locking component with universal super lock function provided in an exemplary embodiment of this application;

[0048] Figure 8 This is a partial structural diagram of a child protection component with a universal superlock function provided in an exemplary embodiment of this application;

[0049] Figure 9 This is a schematic diagram of a child protection component structure with a universal super lock function, provided by an exemplary embodiment of this application, from another perspective.

[0050] Figure label:

[0051] 1. Locking tongue; 11. Locking tongue rivet; 12. Second locking channel; 13. Semi-locking locking part; 14. Fully locking locking part;

[0052] 2. Pawl; 21. Pawl rivet; 22. First pawl drive end; 23. Second pawl drive end; 24. Snap-fit ​​part; 25. Pawl drive rivet;

[0053] 100. Housing; 110. First mounting housing; 111. First locking channel; 120. Second mounting housing; 130. L-shaped top cover;

[0054] 230. Locking coupling rod; 231. Drive groove; 233. Locking coupling rod drive lever;

[0055] 300. Central locking assembly; 310. Electric start motor; 311. Unlocking worm gear; 320. Electric start gear; 321. Electric start gear groove; 322. Collision unlocking linkage receiving space; 330. Collision unlocking linkage; 331. Snap-fit ​​protrusion; 332. Collision unlocking connecting shaft; 340. Locking transmission rod; 341. Arc-shaped protrusion; 342. Wave-shaped collision unlocking spring; 343. Super lock protrusion; 344. First locking transmission protrusion; 350. Locking rod; 351. Locking rod lever;

[0056] 410. Internal release connecting rod; 420. Internal release transmission rod; 426. Sliding channel;

[0057] 500. Child safety component; 510. Internal release coupling rod; 520. Child safety motor; 521. Child safety worm gear; 530. Child safety gear; 531. Child safety lever shaft; 532. Superlock contact head; 540. Child safety lever; 541. Arc-shaped channel cover; 542. Child safety lever running channel; 543. Limiting protrusion. Detailed Implementation

[0058] Embodiments of this application will now be described in detail, examples of which are illustrated in the accompanying drawings. The components of the embodiments of this application described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0059] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] The following will combine Figures 1 to 9 The technical solutions of this application are clearly and completely described. Obviously, the described embodiments are only some embodiments of this application, not all embodiments.

[0063] See Figure 1 The electric unlocking structure with universal super lock function provided in this application includes a housing 100. The housing 100 includes a first mounting housing 110, a second mounting housing 120 and an L-shaped top cover 130. The first mounting housing 110 and the second mounting housing 120 are respectively fixedly assembled with the L-shaped top cover 130 to obtain an L-shaped housing 100, which has a component installation space inside.

[0064] See Figure 2 The latch 1 and pawl 2 are rotatably mounted on the outside of the first mounting housing 110 via latch rivets 11 and pawl rivets 21, respectively. A first latch channel 111 extending towards the latch 1 is provided at the bottom edge of the outer side of the first mounting housing 110, and a second latch channel 12 is provided from its edge towards its center on the latch 1. When the door is closed, the latch can enter the second latch channel 12 from the first latch channel 111 and contact the latch 1, pushing the latch 1 to rotate until it blocks the first latch channel 111. Simultaneously, the latch 1 engages with the pawl 2, causing the passenger door lock to move from the unlocked state to the locked state.

[0065] A semi-locking locking portion 13 and a fully locking locking portion 14 are formed at the edge of the latch 1. The pawl 2 includes a first pawl drive end 22 and a second pawl drive end 23, and a locking portion 24 is formed at the first pawl drive end 22. When the latch pushes the latch 1 to rotate, the semi-locking locking portion 13 and the fully locking locking portion 14 can respectively engage with the locking portion 24, thereby putting the passenger car door lock into a semi-locked state or a fully locked state.

[0066] The tail of the latch 1 has a self-priming drive groove 16, which is used to cooperate with the self-priming push rod to realize the self-priming action of the latch 1.

[0067] See Figures 3 to 9 This application provides an electric unlocking structure with universal super lock function, including a central locking component 300 and a child protection component 500. Both components are reasonably arranged in the internal space of the door lock housing 100. Through the direct mechanical interaction of their internal key components, the synchronous locking and linkage unlocking of the super lock are realized.

[0068] The central locking assembly 300 includes a locking transmission rod 340. This locking transmission rod 340 is slidably disposed within the housing 100 and can perform precise linear reciprocating motion along its axial direction under the drive of a motor. At the end of the locking transmission rod 340 facing the child protection assembly 500, a super-lock protrusion 343 is integrally formed or fixedly disposed.

[0069] The child safety assembly 500 includes a child safety gear 530. This gear 530 is rotatably fixed within the housing 100 and is driven by a motor, allowing for forward and reverse rotation. A super-lock contact head 532 is correspondingly provided on the side of the child safety gear 530 facing the locking transmission rod 340. The position of the super-lock contact head 532 is precisely calculated to ensure that when the child safety gear 530 rotates to a specific angle, it intersects with the super-lock protrusion 343 on the locking transmission rod 340 in space, resulting in mechanical interference.

[0070] The child safety gear 530 can be semi-circular, fan-shaped, or other shapes. In a specific example, the child safety gear 530 is a fan-shaped gear with a super lock contact head 532 extending from its tail end (i.e., the toothless end).

[0071] The superlock protrusion 343 and the superlock contact head 532 can be cylindrical, protruding, or other geometric shapes suitable for transmitting thrust. In a specific example, the superlock protrusion 343 is elongated, and the end of the superlock contact head 532 is cylindrical, facilitating the contact action between the two.

[0072] The electric unlocking structure with universal superlock function provided in this application operates in two stages: superlock locking and superlock unlocking.

[0073] During the superlock locking phase, when the system receives an activation command for child protection, the motor starts and drives the child protection gear 530 to rotate. As the child protection gear 530 rotates, the superlock contact head 532 on it moves accordingly and contacts and collides with the superlock protrusion 343 at the end of the locking transmission rod 340 in the rotation path. The superlock contact head 532 continues to move and applies a thrust to the superlock protrusion 343. This thrust pushes the locking transmission rod 340 to undergo a linear displacement along its axial direction. This linear displacement directly drives the subsequent locking mechanism inside the central locking assembly 300, causing the central lock to enter the locked state, i.e., from... Figure 3 Entering the unlocked state Figure 4 The child safety lock is now engaged. At this point, simply triggering the child safety lock automatically and forcibly locks the central locking system, ultimately achieving a super-lock safety state that simultaneously locks both the inside and outside access points of the doors.

[0074] During the superlock unlocking phase, when the system receives the central locking command, the motor starts and, through a series of transmissions, ultimately drives the locking transmission rod 340 to move linearly in the opposite direction. The locking transmission rod 340, along with its superlock protrusion 343, moves in the reset direction. During this process, the superlock protrusion 343 contacts the side of the superlock contact head 532 in the locked position and applies a tangential actuation. This force converts the linear motion of the locking transmission rod 340 into a torque acting on the superlock contact head 532, which further drives the child safety gear 530 to rotate and overcome resistance. The rotation of the child safety gear 530 resets the internal mechanism of the child safety assembly 500, thereby releasing its restriction on the internal release mechanism, and the child safety function is thus deactivated. This allows the double-locked state of the superlock to be simultaneously released by simply performing the central locking operation, and the vehicle door locks are fully restored to a normally openable state. Figure 4 Entering the locked state Figure 3 The unlocked state.

[0075] The electric unlocking structure with universal superlock function provided in this application cleverly achieves efficient conversion and power transmission between rotary motion and linear motion through the direct coupling of two simple mechanical structures: the superlock protruding head 343 and the superlock contact head 532. This design eliminates the need for additional sensors, control units, or independent actuators, which not only greatly simplifies the overall structure and reduces manufacturing costs and failure rates, but also improves the system's response speed and reliability, providing a universal, efficient, and reliable solution for realizing superlock functionality.

[0076] In some embodiments, see Figure 3 and Figure 5 The central locking assembly 300 includes an electric start motor 310, an electric start gear 320, a collision unlocking linkage 330, and a central locking mechanism.

[0077] The output shaft of the electric motor 310 is equipped with an unlocking worm gear 311, which is directly meshed with the electric gear 320. When the electric motor 310 receives an electrical control signal, it can rotate in both directions, and through the unlocking worm gear 311, it drives the electric gear 320 to rotate at a precise angle.

[0078] The collision unlocking linkage 330 is rotatably connected to the electrically operated gear 320, which drives the collision unlocking linkage 330 to rotate. The collision unlocking linkage 330 is equipped with a collision unlocking connecting shaft 332, which engages with an elongated hole at one end of the locking transmission rod 340. This connection method converts the oscillation of the collision unlocking linkage 330 into precise linear movement of the locking transmission rod 340, achieving an efficient conversion from rotary motion to linear motion.

[0079] The central locking mechanism mainly includes a locking rod 350, which is rotatably mounted in the housing 100 via a rotating shaft.

[0080] A first locking transmission protrusion 344 is formed on the locking transmission rod 340, and the first locking transmission protrusion 344 is rotatably connected to the end of the locking rod 350.

[0081] With this configuration, when the electric motor 310 rotates, it drives the electric gear 320 to rotate counterclockwise ( Figure 5 When the electric unlocking gear 320 rotates to a certain extent, it will drive the collision unlocking linkage 330 to rotate counterclockwise as well. The collision unlocking linkage 330 then further pushes the locking transmission rod 340 to the left via the collision unlocking connecting shaft 332. Figure 5 The locking transmission rod 340 moves to the left, and the locking transmission protrusion 344 pushes the locking rod 350 clockwise. Figure 5 Rotate clockwise.

[0082] A locking lever block 351 is formed at one end of the locking lever 350.

[0083] See Figure 2 and Figure 5 A ratchet drive rivet 25 is fixedly installed near the snap-fit ​​part 24. The ratchet drive rivet 25 penetrates the first mounting housing 110, and one end of it inside the housing 100 is located in the drive groove 231 of the locking coupling rod 230.

[0084] The locking coupling rod 230, in conjunction with the external release component, enables the external release operation of the door lock. This is another function of the door lock, and a structure known in the art can be used. The electric unlocking structure with universal super lock function provided in this application will not be described in detail.

[0085] A locking coupling rod drive block 233 is formed in the opposite direction at the drive groove 231 on the locking coupling rod 230. The locking rod block 351 abuts against the locking coupling rod drive block 233. And one side of the drive groove 231 on the locking coupling rod 230 is open.

[0086] With this configuration, the rotation of the locking lever 350 causes the locking lever lever 351 to move, which in turn drives the locking coupling lever 233 to move, causing the locking coupling lever 230 to rotate. This allows the pawl-driven rivet 25 to separate from the locking coupling lever 230 through the opening on one side of the drive groove 231, as shown in the image. Figure 6 As shown. In this state, the pawl 2 cannot be driven by the locking coupling rod 230, thus disconnecting the control external release path and achieving central locking. Reversing the reset movement achieves central unlocking.

[0087] The electric unlocking structure with universal superlock function provided in this application features precise coordination between its various components, and a clear and reliable motion transmission path. The rotational motion of the electric unlocking motor is converted into a reliable linear output through the electric unlocking gear and the collision unlocking linkage, ensuring the accurate execution of the central locking function. At the same time, this design also features a compact structure, sensitive response, and long service life, meeting the high reliability requirements of passenger car door lock systems.

[0088] In some embodiments, the efficient and reliable conversion from rotary motion to linear motion is achieved through the ingenious cooperation between the collision unlocking link 330 and the electrically operated gear 320.

[0089] Specifically, see Figure 7 The circular edge of the collision unlocking link 330 forms a locking protrusion 331 towards the electrically operated gear 320, and an electrically operated gear groove 321 is formed on one side of the electrically operated gear 320. The locking protrusion 331 can be engaged in the collision unlocking link receiving space 322 formed by the electrically operated gear groove 321. This collision unlocking link receiving space 322 is not a simple circular hole, but an irregularly shaped cavity designed according to the requirements of the motion trajectory.

[0090] With this configuration, when the electric motor 310 rotates and drives the electric gear 320 to rotate to a certain extent, the snap-fit ​​protrusion 331 on the collision unlocking link 330 will abut against the side wall of the collision unlocking link receiving space 322, thereby driving the collision unlocking link 330 to rotate synchronously.

[0091] The main body of the collision unlocking linkage 330 is provided with a protruding collision unlocking connecting shaft 332. The axis of the collision unlocking connecting shaft 332 is parallel to but not on the rotation axis of the collision unlocking linkage 330. This eccentric design is the key to generating an effective swing stroke. At the same time, one end of the locking transmission rod 340 is rotatably sleeved on the collision unlocking connecting shaft 332.

[0092] When the electric motor 310 drives the electric gear 320 to rotate, the electric gear groove 321 on the electric gear 320 causes the collision unlocking link 330 to swing. The swing of the collision unlocking link 330 causes the collision unlocking connecting shaft 332 on it to move accordingly. Since the locking transmission rod 340 is rotatably sleeved on the collision unlocking connecting shaft 332, the rotation of the collision unlocking link 330 will not drive the locking transmission rod 340 to rotate, but it will generate a thrust on the locking transmission rod 340, thereby driving the locking transmission rod 340 to produce precise linear movement.

[0093] In some embodiments, the central locking assembly 300 includes a positioning self-locking mechanism, which includes an arc-shaped protrusion 341 disposed on the side of the locking transmission rod 340 and a wave-shaped collision unlocking spring 342 fixedly installed on the inner wall of the housing 100.

[0094] The arc-shaped protrusion 341 is integrally formed with the locking transmission rod 340 or fixed to its side by a reliable connection method. Its arc-shaped profile is precisely calculated to match the waveform profile of the impact unlocking spring 342.

[0095] A wave-shaped impact unlocking spring 342 is mounted on the inner wall of the second mounting housing 120. The spring is pre-compressed into a wave shape with regular crests and troughs, and the height difference between the crests and troughs is carefully designed to provide appropriate positioning force and clear positioning feel.

[0096] When the locking transmission rod 340 moves linearly under external force, the arc-shaped protrusion 341 on its side moves accordingly and slides along the wave-shaped surface of the impact unlocking spring 342. When the locking transmission rod 340 moves to the unlocked or locked position, the arc-shaped protrusion 341 exactly matches the trough of the impact unlocking spring 342. This matching produces a clear positioning effect, ensuring the stability of the central locking system in the unlocked or locked state and preventing malfunctions caused by vibration or accidental external forces.

[0097] During the superlock locking phase, when the system receives an activation command for the child protection system, the motor starts and drives the child protection gear 530 to rotate. As the child protection gear 530 rotates, the superlock contact head 532 on it moves accordingly and contacts and collides with the superlock protrusion 343 at the end of the locking transmission rod 340 in the rotation path. The superlock contact head 532 continues to move and applies a thrust to the superlock protrusion 343. This thrust pushes the locking transmission rod 340 to undergo a linear displacement along its axial direction. This linear displacement directly drives the subsequent locking mechanism inside the central locking assembly 300, causing the central locking system to enter the locked state. At this time, the arc-shaped protrusion 341 has engaged with a trough of the collision unlocking spring 342, realizing the locking state of the central locking system. In this state, when the child safety component 500 is unlocked, the child safety gear 530 resets and rotates. This means the super lock contact head 532 releases its thrust on the super lock protrusion 343. Since the central locking mechanism is already engaged with the collision unlocking spring 342 via the arc-shaped protrusion 341, the central locking will not be released. In other words, after the super lock is engaged, the child safety function of the child safety component can operate independently, i.e., the child lock can be released or re-locked without affecting the central locking status.

[0098] In some embodiments, see Figure 3 , Figure 4 , Figure 8 and Figure 9 The child safety component 500 includes a child safety motor 520, a child safety gear 530, an internal release transmission rod 420, an internal release coupling rod 510, and a child safety lever 540.

[0099] The pediatric motor 520, serving as the drive source, is fixed inside the second mounting housing 120. Its output shaft has a precision-machined pediatric worm gear 521, which, together with the pediatric gear 530, forms a worm gear transmission pair. This transmission method has a self-locking characteristic, maintaining the gear position when the motor stops working and preventing accidental displacement.

[0100] The pediatric safety gear 530 is rotatably mounted inside the second mounting housing 120 via a shaft hole, and its teeth precisely mesh with the pediatric safety worm gear 521. When the pediatric safety motor 520 receives a control signal, it drives the pediatric safety gear 530 to rotate precisely at an angle via the pediatric safety worm gear 521. The rotational motion of the pediatric safety gear 530 is transmitted to the pediatric safety lever 540 via the pediatric safety lever shaft 531 on it.

[0101] The pediatric gear 530 can be a sector gear to save space.

[0102] The internal release transmission rod 420 is rotatably installed inside the second mounting housing 120. It works in conjunction with the internal release assembly to realize the internal release operation of the door lock. It can adopt a structure known in the art. The electric unlocking structure with universal super lock function provided in this application will not be described in detail.

[0103] The internal release transmission rod 420 is an F-shaped rod with a precision-formed sliding channel 426 machined at its tail end. The length and contour of the sliding channel 426 are precisely calculated to provide an accurate guide trajectory for the internal release coupling rod 510.

[0104] The internal release coupling rod 510 is slidably set within the sliding channel 426, and can move linearly within the channel. Its position directly determines the state of the internal release function.

[0105] The child safety lever 540 is rotatably connected to the child safety lever shaft 531 on the child safety gear 530 via a shaft hole at one end. The other end of the child safety lever 540 extends to form an arc-shaped channel cover 541, which precisely covers the inner release coupling rod 510, forming a reliable drive relationship. When the child safety lever 540 moves, it pushes the inner release coupling rod 510 to move within the sliding channel 426 through the inner wall of the arc-shaped channel cover 541.

[0106] The internal release assembly also includes an internal release connecting rod 410, which is coaxially rotatable with the internal release transmission rod 420. The rotation trajectory of the internal release connecting rod 410 is closely related to the position of the internal release coupling rod 510, and the two form a mechanical linkage relationship.

[0107] When the inner release coupling rod 510 is located at the beginning of the sliding channel 426, a specific part of it is on the rotation path of the inner release connecting rod 410. At this time, when the operator pulls the inner door handle, the inner release connecting rod 410 will rotate through the inner opening cable. The inner release connecting rod 410 will then contact the inner release coupling rod 510 and push it to move. The movement will then be transmitted to the subsequent mechanism through the inner release transmission rod 420, ultimately enabling the normal opening of the door.

[0108] The internal release transmission rod 420 transmits motion to the subsequent mechanism, and the process of finally realizing the normal opening of the door can be that the internal release transmission rod 420 directly drives the pawl 2 to rotate, releasing the pawl 2 from the lock tongue 1, or it can indirectly drive the pawl 2 or the lock tongue 1 to rotate. This application does not limit the internal release transmission path, and the existing technology in this field can be used here.

[0109] When the child safety function needs to be activated, the child safety motor 520 drives the child safety gear 530 to rotate, which in turn moves the child safety lever 540. The child safety lever 540 pushes the inner release coupling rod 510 along the sliding channel 426 to its end position via the arc-shaped channel cover 541 at its end. In this position, the inner release coupling rod 510 is completely disengaged from the rotation path of the inner release connecting rod 410, forming a mechanical isolation. At this time, even if the inner door handle is operated to rotate the inner release connecting rod 410, it cannot make contact with the inner release coupling rod 510, and the transmission path of the inner opening release force is completely cut off, thereby realizing the child safety locking function.

[0110] In some embodiments, see Figure 9 To ensure the accuracy and reliability of the movement trajectory of the child safety lever 540, a child safety lever running channel 542 is provided on the lever body, and a limiting protrusion 543 is formed on the inner wall of the L-shaped upper cover 130.

[0111] The pediatric safety lever operating channel 542 is a long, narrow through-hole or guide groove machined directly onto the pediatric safety lever 540 body. Its length and contour shape are precisely designed according to the required movement trajectory of the pediatric safety lever 540. The width of this operating channel is slightly larger than the size of the limiting protrusion 543, ensuring both smooth movement and providing the necessary guiding accuracy. Special buffer structures are provided at both ends of the operating channel to reduce the impact on the pediatric safety lever 540 at the end of its stroke.

[0112] The limiting protrusion 543 is an integrally formed protrusion on the inner wall of the L-shaped top cover 130. It can also be other independent parts that are reliably fixed to the predetermined position of the L-shaped top cover 130 by means of buckles, screws or heat fusion. Its position is precisely calculated to ensure that it can be accurately embedded inside the child safety lever operating channel 542.

[0113] When the pediatric care motor 520 drives the pediatric care gear 530 to rotate, the pediatric care lever 540 swings around the pediatric care lever shaft 531. During this process, the limiting protrusion 543 fixed on the housing is always embedded in the pediatric care lever running channel 542, acting like a guide rail slider system, effectively constraining and guiding the movement of the pediatric care lever 540.

[0114] The working principle of this guiding mechanism is to precisely control the movement trajectory of the child safety lever 540 through mechanical limiting. The cooperation between the limiting protrusion 543 and the child safety lever running channel 542 ensures that the child safety lever 540 can only move along the preset trajectory, preventing any unnecessary deviation or shaking. When the child safety lever 540 swings, the inner wall of the running channel is in continuous contact with the limiting protrusion 543, providing a stable guiding effect and ensuring movement accuracy.

[0115] In some embodiments, to achieve a perfect combination of functional zoning and space optimization, the central locking mechanism in the central locking assembly 300 is centrally located within the component mounting space of the first mounting housing 110. This includes mechanical actuation components such as the locking lever 350. These components are mounted on the inner wall of the first mounting housing 110 via precision pivots and connecting structures, forming a complete central mechanical actuation module. This layout fully utilizes the structural strength of the first mounting housing 110, providing a stable mounting foundation for the mechanical actuation components, while facilitating direct mechanical linkage with components such as the locking tongue 1 and pawl 2 located on the outer side of the housing.

[0116] Meanwhile, the electronically controlled drive component of the central locking assembly 300 and the core mechanism of the child safety assembly 500 are integrated within the component mounting space of the second mounting housing 120. This includes electronically controlled drive components such as the electric start motor 310, electric start gear 320, and collision unlocking linkage 330, as well as child safety function components such as the child safety motor 520, child safety gear 530, and child safety lever 540. These components are mounted inside the second mounting housing 120 using a precise positioning structure, forming a centralized electronic control module area.

[0117] This partitioned layout design optimizes space utilization, allowing each component to obtain the best installation position and movement space; it also facilitates assembly and maintenance, as each functional module can be assembled and debugged separately, improving production efficiency and maintenance convenience.

[0118] In this application, both the Erbao motor and the electric motor can be controlled by a control system, which is common knowledge in the field. This application does not specifically limit the control method.

[0119] The working process of the electric unlocking structure with universal superlock function provided in this application is as follows:

[0120] The operation of the electric unlocking structure with universal superlock function provided in this application begins with the input of a system command. When the superlock needs to be activated, the vehicle body controller sends a command to the child safety motor 520 of the child protection component 500. The child safety motor 520 starts and drives the child safety gear 530 to rotate in a predetermined direction via the child safety worm gear 521 on its output shaft. The rotation of the child safety gear 530 causes the superlock contact head 532 fixed thereon to move synchronously. During the rotation stroke, the movement trajectory of the superlock contact head 532 makes mechanical contact with the superlock protrusion 343 at the end of the locking transmission rod 340 of the central locking component 300. The superlock contact head 532 continues to rotate and applies a thrust to the superlock protrusion 343. This thrust overcomes the system resistance and pushes the locking transmission rod 340 to produce an axial linear displacement.

[0121] The linear movement of the locking transmission rod 340 drives the locking rod 350 to rotate via the first locking transmission protrusion 344 on it. The rotation of the locking rod 350 causes the locking rod lever 351 at its end to actuate the locking coupling rod drive lever 233 on the locking coupling rod 230, forcing the locking coupling rod 230 to rotate. This series of actions causes the opening side of the drive groove 231 of the locking coupling rod 230 to deviate from its original position, resulting in the pawl drive rivet 25 disengaging from the drive groove 231, thereby cutting off the outward release path and achieving central locking. At the same time, the arc-shaped protrusion 341 on the side of the locking transmission rod 340 moves to the set position and engages with the trough of the wave-shaped collision unlocking spring 342 fixed in the housing 100, generating a positioning sense and achieving self-locking, stably maintaining the central locking state.

[0122] As the child safety gear 530 rotates, it drives the child safety lever 540 to swing via the child safety lever shaft 531. The arc-shaped channel cover 541 at the end of the child safety lever 540 pushes the inner release coupling rod 510 to move from the beginning to the end within the sliding channel 426 located at the tail end of the inner release transmission rod 420, causing the inner release coupling rod 510 to disengage from the rotation path of the inner release connecting rod 410, thereby cutting off the inner release channel and completing the child safety locking. Thus, through a single-step child safety locking command, the system automatically and synchronously completes the dual locking of the central locking and inner release, achieving the safety state of the super lock.

[0123] Of course, the super lock can also be activated by first running the central locking component 300 to lock the central control system, and then the child protection component 500 can be activated to lock the child protection system. This will also achieve the super lock state, meaning that both internal and external releases will be disabled.

[0124] Of course, when the super lock is engaged, the child safety component 500 can operate independently without affecting the central locking status.

[0125] When the superlock needs to be released, the system sends an unlocking command to the electric unlocking motor 310 of the central locking assembly 300. The electric unlocking motor 310 starts and drives the electric unlocking gear 320 to rotate via the unlocking worm gear 311. The rotation of the electric unlocking gear 320 causes the collision unlocking linkage 330, which is housed in its electric unlocking gear groove 321, to swing. The collision unlocking linkage 330, through the cooperation of its collision unlocking connecting shaft 332 with the end of the locking transmission rod 340, converts the swing into a pulling force on the locking transmission rod 340, driving the locking transmission rod 340 to move linearly in the opposite direction.

[0126] The reset movement of the locking transmission rod 340 drives the locking rod 350 to rotate in the opposite direction via the first locking transmission protrusion 344, causing the locking rod lever 351 to release the force exerted on the locking coupling rod drive lever 233. The locking coupling rod 230 rotates in the opposite direction to reset, causing its drive groove 231 to re-enclose the pawl drive rivet 25, restoring the unobstructed external release channel. Simultaneously, during the reset movement of the locking transmission rod 340, the super lock protrusion 343 on it applies a pulling force to the super lock contact head 532 on the child safety gear 530, which is converted into a torque that drives the child safety gear 530 to rotate in the opposite direction.

[0127] The reverse rotation of the child safety gear 530 drives the child safety lever 540 to swing in the opposite direction. Its arc-shaped channel cover 541 then pushes the inner release coupling rod 510 back to the beginning of the sliding channel 426, re-entering the rotation path of the inner release connecting rod 410 and restoring the inner release channel's unobstructed flow. Finally, when the locking transmission rod 340 returns to its reset position, its arc-shaped protrusion 341 engages with the corresponding trough of the collision unlocking spring 342, achieving self-locking positioning in the unlocked state. The entire process, through a single central locking unlock command, simultaneously releases the central locking and child safety lock, completely restoring the door lock's normal opening function.

[0128] Of course, the super lock can also be unlocked by first deactivating the child lock and then deactivating the central locking system, which will also achieve the central locking system unlock state, meaning that both internal and external release are effective.

[0129] It should be noted that the technical solutions in the various embodiments of this application can be combined with each other, but the basis for such combination is that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist, that is, it is not within the protection scope of this application.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An electric unlocking structure with universal superlock functionality, characterized in that, include: The housing forms an internal space for component installation, and the outer side of the housing is rotatably provided with a locking tongue and a pawl that can engage with each other; A central locking assembly is disposed within the housing and includes a locking transmission rod that can be linearly moved by a motor, the locking transmission rod having a super-locking protrusion. A child safety component, housed within the housing, includes a child safety gear that can be rotated by a motor, the child safety gear being equipped with a super-lock contact head; The spatial positions of the super lock protruding head and the super lock contact head are configured to abut against each other and transmit movement, such that: When the child safety component is activated and locked, the rotational motion of the child safety gear is converted into a thrust on the superlock protrusion through the superlock contact head, forcing the locking transmission rod to move linearly, thereby triggering the central locking component to enter the locking state, so as to realize the superlock locking. When the central locking component is driven to unlock, the linear movement of the locking transmission rod is converted into a turning force on the super lock contact head through the super lock protrusion, forcing the child safety gear to rotate, thereby driving the child protection component to release the locked state and realize the super lock unlocking.

2. The electric unlocking structure with universal super lock function according to claim 1, characterized in that, The central locking component also includes: Electric motor start; An electrically operated gear meshes with the output shaft of the electrically operated motor. The collision unlocking linkage is movably connected to the electrically opening gear and the locking transmission rod respectively, and is used to convert the rotational motion of the electrically opening gear into the linear movement of the locking transmission rod through the transmission mechanism; A central locking mechanism is connected to the locking transmission rod to achieve central locking.

3. The electric unlocking structure with universal super lock function according to claim 2, characterized in that, The collision unlocking linkage is rotatably housed in a groove on one side of the electrically operated gear; the collision unlocking linkage is provided with a collision unlocking connecting shaft, and one end of the locking transmission rod is provided with an elongated hole, through which the collision unlocking connecting shaft passes, forming the movable connection; the rotational motion of the electrically operated gear drives the collision unlocking linkage to swing, and through the cooperation of the collision unlocking connecting shaft and the elongated hole, drives the locking transmission rod to move linearly.

4. The electric unlocking structure with universal super lock function according to claim 1, characterized in that, The central locking assembly also includes a positioning self-locking mechanism, which includes a wave-shaped collision unlocking spring and an arc-shaped protrusion formed on the side of the locking transmission rod. The wave-shaped collision unlocking spring is fixedly installed in the housing, and the arc-shaped protrusion matches the trough of the collision unlocking spring to achieve self-locking in the central locking unlock or locking position.

5. The electric unlocking structure with universal super lock function according to claim 1, characterized in that, The child protection components also include: The child safety motor is fixedly installed inside the housing; The child safety gear meshes with the output shaft of the child safety motor; The internal release transmission rod has a sliding channel at its tail end; The internal release coupling rod is slidably disposed within the sliding channel; The child safety control lever has one end rotatably connected to the child safety gear, and the other end extends to form an arc-shaped channel cover; wherein: The arc-shaped channel cover covers the inner release coupling rod and is used to drive the inner release coupling rod to move. The electric unlocking structure also includes an internal release component, which comprises: The inner release connecting rod is coaxially rotatably configured with the inner release transmission rod. The inner release connecting rod abuts against the inner release coupling rod to cause: When the inner release coupling rod is located at the beginning of the sliding channel, the inner release connecting rod rotates and abuts against the inner release coupling rod, driving the inner release transmission rod to work together to complete the inner release action; When the child health insurance is locked, the child health insurance gear drives the child health insurance lever to push the inner release coupling rod to the end of the sliding channel, causing the inner release connecting rod to disengage from the inner release coupling rod, thus disabling the inner release function and locking the child health insurance.

6. The electric unlocking structure with universal super lock function according to claim 5, characterized in that, The pediatric safety lever has a pediatric safety lever operating channel on its body, and a limiting protrusion is fixedly provided on the inner wall of the housing. The limiting protrusion is embedded in the pediatric safety lever operating channel to constrain the displacement trajectory of the pediatric safety lever.

7. The electric unlocking structure with universal super lock function according to claim 2, characterized in that, The housing includes a first mounting housing, a second mounting housing, and an L-shaped top cover. The first mounting housing and the second mounting housing are respectively fixedly assembled with the L-shaped top cover to obtain an L-shaped housing, which has a component installation space inside. The central locking mechanism in the central locking assembly is disposed on the first mounting housing in the assembly installation space; The electric start motor, electric start gear, collision unlocking linkage, and child protection component of the central locking assembly are disposed on the second mounting housing in the component installation space.

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