Electric hatch cover lock

Abstract

The utility model relates to the technical field of automobile hatch cover locks, and provides an electric hatch cover lock which comprises a pawl assembly, a spring bolt assembly, an electric poke rod, an unlocking pulling device and a tension spring. The electric poke rod and the unlocking pulling device are used for electric unlocking and manual unlocking of the hatch cover lock correspondingly, and the tension spring is used for pulling the spring bolt assembly to rotate in the opening direction and providing elastic pushing force for opening a hatch cover when the spring bolt assembly is in a full-open state. According to the electric hatch cover lock, through the integrated design, the functions of an electric switch lock and manual unlocking are integrated, the structure is simplified, the cost is reduced, meanwhile, the reliability and durability of a system are improved, meanwhile, automatic reset of the spring bolt assembly is achieved through introduction and use of the tension spring, reliable bouncing of a hatch cover in the full-open state is ensured, and the safety of the hatch cover is improved. The device adapts to the design of hatch covers with different weights, and the universality and applicability of the product are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile bonnet locks, and particularly relates to an electric bonnet lock. Background Art

[0002] In the rapidly developing automobile industry, especially in the field of new energy vehicles, the front cover lock system, as a key component of vehicle body safety and convenience, its technological progress and innovation are particularly important. With the accelerating trend of vehicle intelligence and convenience, as well as the continuous pursuit of high-quality, lightweight, small-size, and low-cost products by vehicle manufacturers, the traditional front cover lock system has been difficult to meet the market demand.

[0003] In the current market, the design and application of electric front cover locks are gradually popularized, but their development still faces many challenges. Most of the existing electric front cover locks adopt a split structure, that is, the electrolysis and self-suction functions are jointly completed by two independent components, an electrolysis actuator and a suction actuator. This design not only makes the whole system bulky, increasing the difficulty of vehicle layout, but also improves the complexity and cost of manufacturing and assembly. In addition, due to the large number of components in the split-structure electric front cover lock, the fault points and maintenance difficulty of the system are increased, which also poses a certain potential threat to the safety and reliability of the whole vehicle.

[0004] Another common design of electric front cover locks is to use a single actuator with large torque, and the electrolysis and self-suction functions are realized by matching two wires for electrolysis and suction. Although this design simplifies the system structure to a certain extent, there are still problems of large volume and weight, which is not conducive to the lightweight design of the whole vehicle. At the same time, the use of a large-torque actuator also increases the energy consumption and cost, which has a certain impact on the cruising range and economy of electric vehicles.

[0005] The applicant's previously published patent with the publication number CN116696158A and the patent name "An Integrated Electric Door Lock for the Front Hood of an Automobile" includes a motor, a locking assembly, an electric assembly, a manual unlocking assembly, and a housing assembly. Among them, the locking assembly includes a locking tongue assembly and a pawl assembly. The locking assembly has at least two position states: a fully locked state and a fully open state. The manual unlocking assembly includes a mechanical unlocking lever. When the mechanical unlocking lever is pulled to unlock, it can drive the pawl assembly to rotate, performing an unlocking operation of separating the pawl assembly from the locking tongue assembly. The housing assembly includes a lower housing and an upper housing, which are used to accommodate or fix the motor, the locking assembly, the electric assembly, and the manual unlocking assembly. This disclosed solution integrates the functions of electric switch locking, manual unlocking, and the eccentric rotation action of a double-connected spur gear during normal unlocking, reducing the number of parts, facilitating the layout of the electric front hood lock on the vehicle, with a clever structure and cost reduction. However, in actual application, this solution has problems such as a relatively large Z-direction dimension and limited service life. In the face of the same assembly space requirements for different configurations of the same vehicle model by customers, the adaptability of the existing electric front hood lock is insufficient. Often, customized development is required, and door locks corresponding to different configurations need to be developed separately, increasing costs and the cycle. The complex structural design and assembly process lead to an increase in manufacturing costs and also affect production efficiency. Summary of the Invention

[0006] In view of this, the present invention aims to provide an electric hatchback lock, aiming to solve the technical problems existing in the existing automobile hatchback lock in terms of service life, structural complexity, and layout flexibility. Traditional hatchback locks often have a short service life due to excessive direct meshing time and force between the locking tongue assembly and the pawl assembly, and the overall structure is complex, making it difficult to be flexibly arranged on the vehicle.

[0007] To achieve the above object, the technical solution of the present invention is realized as follows:

[0008] An electric hatchback lock, comprising:

[0009] A pawl assembly, rotatably arranged, which, when rotating, disengages from the locking tongue assembly according to the rotation direction, or abuts against the locking tongue assembly to form a fully open state or a fully locked state;

[0010] A locking tongue assembly, rotatably arranged, and capable of abutting and locking with or disengaging from the pawl assembly;

[0011] An electric toggle lever, capable of being driven to rotate by a motor device, the electric toggle lever can push the pawl assembly to rotate in the opening direction to disengage from the locking tongue assembly when rotating, and the electric toggle lever can drive the pawl assembly to rotate in the opposite direction of the opening to perform the electric suction of the locking tongue assembly;

[0012] An unlocking pulling device, which is used to drive the pawl assembly to rotate, so that it abuts against the locking tongue assembly and rotates to the fully open state;

[0013] A tension spring, which is used to pull the locking tongue assembly to rotate in the opening direction and provide an elastic pushing force for opening the hatch cover when the locking tongue assembly is in the fully open state.

[0014] Furthermore, the electric hatch cover lock has at least two states: the fully open state and the fully locked state. Among them, when the electric hatch cover lock is in the fully locked state, the pawl metal part in the pawl assembly abuts against and limits the position of the first abutting boss in the locking tongue assembly. The pawl assembly rotates to unlock under the driving action of the electric shift lever until the pawl assembly is completely separated from the first abutting boss in the locking tongue assembly, and the electric hatch cover lock is in the fully open state.

[0015] Furthermore, the electric hatch cover lock also includes a semi-locked state, where the locking tongue assembly and the pawl assembly are in a critical position about to disengage.

[0016] Furthermore, the electric hatch cover lock also includes an upper housing and a lower housing. The upper housing and the lower housing are detachably and fixedly connected. A motor device and a gear transmission mechanism are arranged between the upper housing and the lower housing. The motor device drives the electric shift lever to rotate forward or backward through the gear transmission mechanism. A first bottom plate is arranged on one side of the upper housing away from the lower housing. The locking tongue assembly is hinged and fixed between the first bottom plate and the upper housing.

[0017] Furthermore, both the locking tongue assembly and the electric shift lever are hinged and fixed on a locking tongue rivet. During electric unlocking, the electric shift lever drives the pawl assembly to rotate under the action of the motor device, so that the pawl assembly is separated from the locking tongue assembly.

[0018] Furthermore, a shift lever is arranged on one side of the upper housing away from the lower housing. The shift lever rotates under the pulling action of the unlocking pulling device to push the pawl assembly to rotate in the unlocking direction and reset after the unlocking pulling device loses force.

[0019] Furthermore, a tongue piece is arranged on the shift lever. The tongue piece is hinged on the shift lever and can rotate when the shift lever rotates and reset when the shift lever resets. When unlocking from the fully locked state, the unlocking pulling device pulls the shift lever to rotate. The shift lever drives the pawl assembly to move to a critical state or a state before separation from the locking tongue assembly, completing the first manual unlocking. After the shift lever resets, the unlocking pulling device pulls the shift lever to rotate again. The tongue piece drives the pawl assembly to continue to move and separate from the locking tongue assembly, completing the second manual unlocking.

[0020] Further, the shift lever includes a shift lever body, a first claw, and a first pawl. The first pawl and the first claw are arranged at an angle on the shift lever body. The first claw is used to connect with the wire of the unlocking pulling device, and the first pawl is used to push the ratchet pawl assembly to move during the first manual unlocking.

[0021] Further, the tongue piece is hinged and fixed on the first pawl. A second return torsion spring is arranged at the rotating shaft of the tongue piece, and a limiting post is arranged on the ratchet pawl assembly. The limiting post is used for abutting and limiting when the first pawl moves during the first manual unlocking. A first pushing groove is arranged on the ratchet pawl assembly, and the first pushing groove is used for the tongue piece to push and limit during the second manual unlocking.

[0022] Further, a second claw is arranged on the shift lever body. The second claw is arranged on the side of the first claw away from the first pawl. One end of the second claw is connected to the disengaging link, and the other end of the disengaging link is the disengaging shift lever. When the shift lever rotates under the pulling action of the unlocking pulling device, it drives the disengaging link and the disengaging shift lever to perform crank rotation. When the disengaging shift lever rotates, it separates the sector gear and the double-connected spur gear in the gear transmission mechanism.

[0023] Compared with the prior art, the electric hatch lock of the present utility model has the following advantages:

[0024] (1) For the electric hatch lock of the present utility model, through the integrated design, the electric switch lock and the manual unlocking function are combined into one, which simplifies the structure, reduces the cost, improves the reliability and durability of the system at the same time. Meanwhile, the introduction and use of the tension spring realize the automatic reset of the lock tongue assembly, ensure the reliable bounce of the hatch in the fully open state, adapt to the hatch designs of different weights, and enhance the versatility and applicability of the product.

[0025] (2) For the electric hatch lock of the present utility model, the double-pull unlocking mechanism is adopted to reduce the direct meshing time and force between the lock tongue assembly and the ratchet pawl assembly through step-by-step unlocking, significantly improving the service life of the hatch lock and meeting the service life requirement of up to 30,000 - 50,000 times for the electric vehicle hatch lock; the non-intermeshing design and the Z-direction dimension reduction design not only optimize the overall structure of the hatch lock, but also make the layout of the hatch lock on the vehicle more flexible and convenient, reducing the weight and cost of the vehicle. Meanwhile, by introducing the disengaging link and the disengaging shift lever linked with the shift lever, the problem that the hatch lock cannot be normally opened in a specific state is solved. By manually operating the shift lever, the obstruction of the gear transmission mechanism can be removed, ensuring that the hatch lock can be smoothly opened or closed, optimizing the unlocking angle, enhancing the flexibility and adjustability of manual unlocking, and making the unlocking operation more in line with the actual needs of the client. Description of the Drawings

[0026] The accompanying drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0027] Figure 1 is a schematic structural diagram of the electric hatch lock according to an embodiment of the present utility model;

[0028] Figure 2 is an exploded structural diagram of the electric hatch lock according to an embodiment of the present utility model;

[0029] Figure 3 is a schematic structural diagram of the tongue assembly and the pawl assembly in a fully locked state according to an embodiment of the present utility model;

[0030] Figure 4 is a schematic structural diagram of the tongue assembly and the pawl assembly in a semi-locked state according to an embodiment of the present utility model;

[0031] Figure 5 is a schematic structural diagram of the electric toggle rod, the tongue assembly, the pawl assembly, and the toggle rod in the electric hatch lock in a semi-locked state according to an embodiment of the present utility model;

[0032] Figure 6 is a schematic structural diagram of the tongue assembly and the pawl assembly in a fully open state according to an embodiment of the present utility model;

[0033] Figure 7 is a schematic structural diagram of the electric toggle rod, the tongue assembly, the pawl assembly, and the toggle rod in the electric hatch lock in a fully open state according to an embodiment of the present utility model;

[0034] Figure 8 is a schematic structural diagram of the electric toggle rod and the toggle rod in the electric hatch lock in a semi-locked state when the electric hatch lock changes from a fully locked closed state to a semi-locked state according to an embodiment of the present utility model;

[0035] Figure 9 is a schematic structural diagram of the abutting state of the tongue assembly and the pawl assembly after the electric hatch lock changes from a semi-locked state to a fully locked closed state according to an embodiment of the present utility model;

[0036] Figure 10 is a schematic structural diagram of the electric hatch lock when manually pulled to unlock according to an embodiment of the present utility model;

[0037] Figure 11 is a schematic structural diagram of the tongue assembly, the pawl assembly, the toggle rod, and the unlocking pulling device in the electric hatch lock in the first manual unlocking state according to an embodiment of the present utility model;

[0038] Figure 12 is Figure 11Schematic diagram of the back view structure of the structure shown in

[0039] Figure 13 Schematic diagram of the structure of the electric hatch lock according to the embodiment of the present utility model when manually pulling and unlocking for the second time;

[0040] Figure 14 Schematic diagram of the structure of the lock tongue assembly, pawl assembly, lever and unlocking pulling device in the electric hatch lock according to the embodiment of the present utility model in the second manual unlocking state;

[0041] Figure 15 is Figure 14 Schematic diagram of the back view structure of the structure shown in

[0042] Figure 16 is Figure 15 Schematic diagram of the right view of the structure in

[0043] Figure 17 Schematic diagram of the structure of the lever according to the embodiment of the present utility model;

[0044] Figure 18 Exploded structure diagram of the lock tongue assembly, pawl assembly, lever, unlocking pulling device and cover plate in the electric hatch lock according to the embodiment of the present utility model during assembly;

[0045] Figure 19 Enlarged view of the node of the first guiding column on the tongue piece guiding and moving in the first guiding groove on the cover plate;

[0046] Explanation of reference numerals:

[0047] 1. Cover plate; 2. Lock tongue assembly; 201. Lock tongue body, 202. First abutting boss; 203. Locking part; 204. Half-lock sensing part; 205. First connecting column; 3. Lock tongue rivet; 4. Unlock pulling device; 5. Pawl rivet; 6. First return torsion spring; 7. Lever; 701. First claw; 702. First pawl; 703. Lever body; 704. Second hinge hole; 705. Second claw; 706. First abutting limit profile; 8. Tongue piece; 801. First hinge hole; 9. Second return torsion spring; 10. Third return torsion spring; 11. Pawl assembly; 12. First pushing groove; 13. Limit post; 14. First guide groove; 15. First hinge column; 16. First guide column; 17. Tension spring; 18. First bottom plate; 19. First connecting plate; 20. Lock tongue signal lever; 21. Half-lock signal switch; 22. Full-lock signal switch; 23. Upper housing; 24. Pawl signal switch; 25. First reset switch; 26. Link reset spring; 27. Electric shift lever; 28. Motor device; 29. Lower housing; 30. First reinforcing plate; 31. Disengagement link; 32. Disengagement lever; 33. Gear transmission mechanism; 34. First rotating shaft; 35. Worm; 36. Double straight bevel gear; 37. Double straight gear; 38. Sector gear. Detailed implementation mode

[0048] In order to make the technical means, objectives and effects of the present utility model easy to understand, the embodiments of the present utility model will be described in detail below with reference to specific drawings.

[0049] It should be noted that all terms indicating directions and positions in the present utility model, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "bottom", "lateral", "longitudinal", "center", etc., are only used to explain the relative position relationship and connection situation between components under a certain specific state (as shown in the drawings), and are only for the convenience of describing the present utility model, rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0050] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0051] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0052] As Figures 1 to 19 shown, the present application discloses an electric hatch lock, including:

[0053] A pawl assembly 11, which is rotatably arranged. When it rotates, it disengages from the latch assembly 2 according to the rotation direction, or abuts against the latch assembly 2 to form a fully open state or a fully locked state;

[0054] A latch assembly 2, which is rotatably arranged and can be in abutting lock or disengaging unlock with the pawl assembly 11;

[0055] An electric toggle lever 27, which can be driven to rotate by a motor device 28. When the electric toggle lever 27 rotates, it can push the pawl assembly 11 to rotate in the opening direction to a half-locked state or a fully open state with the latch assembly 2, and the electric toggle lever 27 can drive the pawl assembly 11 to rotate in the opposite direction of opening for the electric suction of the latch assembly 2;

[0056] An unlocking pulling device 4, which is used to drive the pawl assembly 11 to rotate so that it abuts against the latch assembly 2 and rotates to a half-locked state or a fully open state;

[0057] A tension spring 17, which is used to pull the latch assembly 2 to rotate in the opening direction.

[0058] The electric hatch lock disclosed in this application is an optimized improvement based on the patent with application number 202310689541.9 previously disclosed by the applicant. It integrates the structures in the electric hatch lock for performing the electric switch lock function and the manual unlocking function. The reset device of the locking tongue assembly 2 is set as a tension spring 17. The tension spring 17 is used to apply a force to the locking tongue assembly 2 to move in the direction of the unlocking state. Since the tension spring 17 can be applied with a large pre-tightening force, the locking tongue assembly 2 can reliably bounce up the vehicle hatch, such as the front cover, in the fully open state. By using a tension spring to push the vehicle hatch open in the fully open state of the locking tongue assembly 2, it can be applied to different hatches with various weight designs. As an example of this application, the tension spring 17 applies a force to the locking tongue assembly 2 to make it rotate clockwise. The pawl assembly 11 can rotate along the pawl rivet 5. A third reset torsion spring 10 is arranged at the pawl rivet 5. The third reset torsion spring 10 is used to drive the pawl assembly 11 to reset. The third reset torsion spring 10 applies a force to the pawl assembly 11 to make it rotate counterclockwise. When the unlocking pulling device 4 pulls the pawl assembly 11 to unlock, the pawl assembly 11 rotates clockwise. Preferably, one end of the tension spring 17 is connected to the first connection post 205 on the locking tongue assembly 2, and the other end extends out of the locking tongue assembly 2 and is fixed by the cover plate 1 or the first bottom plate 18.

[0059] The electric hatch lock disclosed in this application, through an integrated design, combines the electric switch lock and the manual unlocking function into one, simplifies the structure, reduces costs, and at the same time improves the reliability and durability of the system. At the same time, the introduction and use of the tension spring 17 realize the automatic reset of the locking tongue assembly 2, ensure the reliable bouncing up of the hatch in the fully open state, adapt to different weight hatch designs, and enhance the versatility and applicability of the product.

[0060] As a preferred example of this application, the electric hatch lock has at least two states: the fully open state and the fully locked state. Among them, when the electric hatch lock is in the fully locked state, the pawl metal part in the pawl assembly 11 is in contact with and abuts against the first abutting boss 202 in the locking tongue assembly 2 for limiting, so that the electric hatch lock remains in the closed state as Figure 3 shown; when the pawl assembly 11 rotates to unlock under the driving action of the electric toggle rod 27 until the pawl assembly 11 is completely separated from the first abutting boss 202 in the locking tongue assembly 2, the electric hatch lock is completely opened, and its state is as Figure 6 、 Figure 7As shown. As a preferred example of the present application, the electric hatch lock can also be selectively set to a semi-locked state according to customer needs. Under the instruction of the first electric unlocking, the pawl assembly 11 is driven by the electric toggle lever 27. When the pawl assembly 11 rotates in a state of abutting against the locking tongue assembly 2, the pawl assembly 11 contacts the pawl signal switch 24. At this time, the logic signal judges and makes the motor device 28 stop rotating, that is, the electric toggle lever 27 remains stationary at this time. At this time, the hatch lock is opened to the semi-locked state, and the locking tongue assembly 2 and the pawl assembly 11 are in a critical position state about to disengage, waiting for the second unlocking instruction. The position of the semi-locked state is as Figure 4 , Figure 5 shown.

[0061] The above setting realizes the electric switch function of the electric hatch lock through the cooperation of the electric toggle lever 27 and the pawl assembly 11, improving the convenience and efficiency of operation. In addition, the electric hatch lock described in the present application also adds a semi-locked state function, enabling the electric hatch lock to temporarily stay in the semi-locked state during the unlocking process, avoiding mis-triggering of electric unlocking or manual unlocking, and enhancing the use safety and reliability of the electric hatch lock.

[0062] As a preferred example of the present application, the electric hatch lock further includes an upper housing 23 and a lower housing 29. The upper housing 23 and the lower housing 29 are detachably and fixedly connected. A motor device 28 and a gear transmission mechanism 33 are arranged between the upper housing 23 and the lower housing 29. The motor device 28 drives the electric toggle lever 27 to rotate forward or backward through the gear transmission mechanism 33. A first bottom plate 18 is arranged on one side of the upper housing 23 away from the lower housing 29. The locking tongue assembly 2 is hinged and fixed between the first bottom plate 18 and the upper housing 23 and can be driven by the electric toggle lever 27 to rotate, thereby realizing the electric opening or self-suction control of the electric hatch lock. In the example of the present application, both the locking tongue assembly 2 and the electric toggle lever 27 are hinged and fixed on the locking tongue rivet 3.

[0063] As a preferred example of the present application, the pawl assembly 11 is hinged and fixed to one side of the upper housing 23 away from the lower housing 29 through a pawl rivet 5. A locking tongue signal lever 20 is provided on the upper housing 23. The locking tongue signal lever 20 is hinged and fixed relative to the upper housing 23 and can be reset. During the rotation of the locking tongue assembly 2, the locking portion 203 and the semi-locking sensing portion 204 on the locking tongue assembly 2 touch the locking tongue signal lever 20 to detect the state of the full-lock position and the semi-lock position. As a specific example of the present application, a semi-lock signal switch 21, a full-lock signal switch 22, a pawl signal switch 24, and a first reset switch 25 are further provided on one side of the upper housing 23 away from the lower housing 29. Among them, the semi-lock signal switch 21 is used to detect the semi-lock state position of the hatch cover lock by contacting the locking tongue signal lever 20. The full-lock signal switch 22 is used to detect the fully open state position of the hatch cover lock by contacting the locking tongue signal lever 20. The first reset switch 25 is used to detect the reset state position of the electric toggle lever 27 by contacting the electric toggle lever 27. The pawl signal switch 24 is used to detect the position state of the pawl assembly 11 moving to the full-lock state position, the semi-lock state position, or the fully open state position by contacting the pawl assembly 11. Through the semi-lock signal switch 21, the full-lock signal switch 22, the first reset switch 25, and the pawl signal switch 24, the position states of the pawl assembly 11 and the locking tongue assembly 2 in the full-lock, semi-lock, and fully open states and whether the electric toggle lever 27 is in the reset position state are detected, so as to realize the reliable control of the motor device 28. As an example of the present application, the locking tongue assembly 2 includes a locking tongue body 201, a first abutting boss 202, a locking portion 203, a semi-locking sensing portion 204, and a first connecting column 205. Among them, the locking portion 203, the semi-locking sensing portion 204, and the first abutting boss 202 are arranged in a clockwise order on the locking tongue body 201 for detecting the locking position of the hatch cover lock and defining the locking abutment. The first connecting column 205 is provided on the locking tongue body 201 for connecting and fixing the tension spring 17. When in use, as Figure 3 shown, the pawl metal part in the pawl assembly 11 contacts and abuts against the locking tongue metal part in the locking tongue assembly 2 to keep the hatch cover lock in the closed state. At this time, the hatch cover lock is in the full-lock state. If the electric hatch cover lock of the present application has a semi-lock function, when the electric hatch cover lock receives the first electric unlocking instruction, the motor device 28 drives the electric toggle lever 27 to push the pawl assembly 11 to rotate and separate it from the locking tongue assembly 2. When the electric toggle lever 27 rotates to the position where the pawl assembly 11 triggers the pawl signal switch 24 and the locking tongue signal lever 20 triggers the semi-lock signal switch 21, the electric toggle lever 27 stops rotating. At this time, the hatch cover lock opens to the semi-lock position, as Figure 4 , Figure 5As shown, at the same time, the electric toggle lever 27 remains stationary, waiting for the second electric unlocking command. At this time, the hatch lock is in a semi-locked state. When the electric hatch lock described in the present application receives an unlocking command (for those with a secondary electric unlocking function configuration, the second electric unlocking command needs to be received within a certain time period to avoid accidental triggering and confirm the user's true unlocking intention), the motor device 28 rotates to drive the electric toggle lever 27 to rotate again, pushing the pawl assembly 11 to rotate so that it is completely separated from the locking tongue assembly 2, completing the full opening of the hatch lock. After the hatch lock is fully opened, after a certain delay, the electric toggle lever 27 resets until it triggers the first reset switch 25 and then stops at the initial position of the electric toggle lever 27. The electric toggle lever 27 stops rotating. At this time, the locking tongue assembly 2 is fully opened, as Figure 6 、 Figure 7 shown. At the same time, after a certain delay, the electric toggle lever 27 resets until it triggers the first reset switch 25 and then stops at the initial position of the electric toggle lever 27. At this time, the hatch lock is in a fully open state. When the electric hatch lock described in the present application receives a command to close the hatch or the hatch is manually lowered, when the lock catch of the hatch enters the semi-locked position of the hatch lock and the locking tongue assembly 2 does not touch the full-lock signal switch 22 and the full-lock signal switch 22 and the pawl signal switch 24 do not output corresponding logic signals, as Figure 8 shown, the schematic diagram of the position of the electric toggle lever 27 when the hatch lock is in a semi-locked state and starts to work. It is logically judged that this is the intention to close the door at this time, and the electric suction function is started to perform electric suction to the fully locked state. When the hatch lock is in a semi-locked state, the motor device 28 starts to drive the electric toggle lever 27 to push the locking tongue assembly 2 until the full-lock signal switch 22 and the pawl signal switch 24 are triggered and then stops. At this time, the hatch lock is electrically sucked to the fully locked position, and the electric toggle lever 27 pushes the locking tongue assembly 2 to the fully locked position, as Figure 9 shown. At this time, the abutting state of the locking tongue assembly 2 and the pawl assembly 11 is as Figure 3 shown. At the same time, after a certain delay, the electric toggle lever 27 resets until it triggers the first reset switch 25 and then stops at the initial position of the electric toggle lever 27.

[0064] The above settings drive the electric toggle lever 27 through the motor device 28 to achieve precise control of the lock tongue assembly 2 and the pawl assembly 11. In the locked state, the pawl assembly 11 is in close contact with the lock tongue assembly 2 to keep the hatch closed. After receiving the unlocking instruction, the motor device 28 starts, and the electric toggle lever 27 pushes the pawl assembly 11 to rotate, separating it from the lock tongue assembly 2 to achieve unlocking. If the half-lock function is configured, under a single unlocking instruction, the hatch lock opens to the half-lock state and waits for the second instruction for full unlocking. During the closing process, the motor device 28 starts again, driving the lock tongue assembly 2 to reset to the fully locked state, and the status of the hatch lock is detected in real time through multiple signal switches to ensure the reliable control of the motor device 28. In addition, an electric suction function is designed to ensure that the hatch can be automatically sucked to the fully locked state in the half-lock state, with convenient and efficient operation, ensuring the precise control of the motor device in different states, avoiding misoperation, and improving the stability and safety of the system.

[0065] As a preferred example of the present application, the pawl rivet 5 and the lock tongue rivet 3 are connected and fixed through the first connecting plate 19, or the pawl rivet 5 is integrally provided at one end of the first connecting plate 19, and the lock tongue rivet 3 is provided at the other end of the first connecting plate 19 and passes through the first connecting plate 19. A pawl buffer pad is provided on the upper housing 23, and the pawl buffer pad is used to limit the rotation angle of the pawl assembly 11 relative to the pawl rivet 5. This setting optimizes the connection structure between the pawl assembly 11 and the lock tongue assembly 2, enhances the stability and reliability of locking, enables the hatch to be locked more firmly when closed, effectively prevents accidental opening caused by vibration or external force, and improves the user experience.

[0066] As a preferred example of the present application, a toggle lever 7 is provided on one side of the upper housing 23 away from the lower housing 29. The toggle lever 7 rotates under the pulling action of the unlocking pulling device 4 and pushes the pawl assembly 11 to rotate in the unlocking direction and resets after the unlocking pulling device 4 loses force.

[0067] This setting discloses a structure for the single-pull unlocking function of the hatch lock. When unlocking is required, the user provides an external force or inputs power through the unlocking pulling device 4 to drive the toggle lever 7 to rotate, thereby driving the pawl assembly 11 to rotate in the direction of the unlocking state to achieve manual unlocking of the hatch lock.

[0068] As a preferred example of the present application, a tongue piece 8 is provided on the lever 7. The tongue piece 8 is hinged to the lever 7 and can rotate when the lever 7 rotates and reset when the lever 7 resets. When unlocking from the fully locked state, the unlocking pulling device 4 pulls the lever 7 to rotate. The lever 7 drives the pawl assembly 11 to move to a critical state of separating from the locking tongue assembly 2 or a state before separation, completing the first manual unlocking. After the unlocking pulling device 4 resets, it pulls the lever 7 to rotate again. The tongue piece 8 drives the pawl assembly 11 to continue to move and separate from the locking tongue assembly 2, completing the second manual unlocking.

[0069] This setting discloses a novel double-pull manual unlocking structure, mainly including key components such as an unlocking pulling device 4, a lever 7, a tongue piece 8, and a pawl assembly 11. When unlocking is required, the user provides an external force or inputs power through the unlocking pulling device 4 to drive the lever 7 to rotate. The lever 7 is ingeniously designed and can automatically reset after losing the external force, which provides the basis for double-pull unlocking. The tongue piece 8 is hinged to the lever 7, rotates with the rotation of the lever 7, and resets with the reset of the lever 7, playing a role in transmitting motion. The pawl assembly 11 is rotatably arranged and can selectively separate from or abut against the locking tongue assembly 2 according to the direction during rotation, thereby realizing three states of unlocking, semi-locking, and full locking. In the fully locked state, when the hatch cover lock loses power or other situations require manual unlocking, the first pull of the unlocking pulling device 4 will cause the lever 7 to drive the pawl assembly 11 to move to a critical state of separating from the locking tongue assembly 2. At this time, the hatch cover lock is opened to the semi-locked state. Then, when the unlocking pulling device 4 loses force or resets, the lever 7 and the tongue piece 8 also perform reset actions. After that, when the unlocking pulling device 4 pulls the lever 7 again, the tongue piece 8 will drive the pawl assembly 11 to continue to move, and finally realize complete separation from the locking tongue assembly 2, completing the unlocking process.

[0070] The electric hatch cover lock of the present application, by introducing a novel double-pull unlocking structure, through optimized design and innovative mechanisms, introducing the combined design of the lever 7 and the tongue piece 8, decomposes the movement of the pawl assembly 11 and the separation process of the locking tongue assembly 2 into two steps, so that the abutting part between the pawl assembly 11 and the locking tongue assembly 2 does not need to remain in contact throughout the unlocking process, thereby reducing the requirement for the Z-direction space, facilitating the compact design of the lock body, and at the same time reducing the direct meshing times and time between the pawl assembly 11 and the locking tongue assembly 2, improving its wear resistance and extending its service life. The novel double-pull unlocking structure disclosed in the present application, through the secondary pull unlocking design of the lever 7 and the tongue piece 8, effectively overcomes the limitations of the prior art, significantly improves the service life and reliability of the hatch cover lock, meets the service life requirements of up to 30,000 - 50,000 times for the electric vehicle hatch cover lock, and adapts to and promotes the development needs of the automotive industry.

[0071] As a preferred example of the present application, the lever 7 includes a first claw 701 and a first pawl 702. The first claw 701 is used to connect to the wire of the unlocking pulling device 4, and the first pawl 702 is used to push the pawl assembly 11 to move during the first manual unlocking. The first claw 701 and the first pawl 702 are arranged at an angle along the first rotation axis 34 of the lever 7. As a preferred example of the present application, the range of the angle formed between the first claw 701 and the first pawl 702 is 60° to 150°. This setting discloses an optimized structure of the lever 7. The lever 7 is ingeniously designed to include two key parts: the first claw 701 and the first pawl 702. These two parts each perform their own functions and jointly achieve the effective control and operation of the pawl assembly 11. The main task of the first claw 701 is to connect to the wire of the unlocking pulling device 4. As a transmission medium, it is responsible for transmitting the force of the pulling device to the lever 7. The first pawl 702 is responsible for directly pushing the pawl assembly 11 to move during the first manual unlocking, so as to achieve the unlocking function. In addition, these two parts are not simply arranged side by side, but are ingeniously arranged at an angle along the first rotation axis 34 of the lever 7. This angle design enables the lever 7 to move more flexibly during the pulling process, and at the same time ensures that the first claw 701 and the first pawl 702 can effectively play their roles in their respective working processes.

[0072] Through the above optimization design of the structure of the lever 7, the unlocking operation is made smoother and more efficient, ensuring the effective transmission of the pulling force, reducing the energy loss, improving the reliability and stability of unlocking. At the same time, this design also helps to make the lever 7 more compact and reasonable in the overall structure, further enhancing its flexibility and adaptability during the unlocking process.

[0073] As a preferred example of the present application, the lever 7 is limited by the first return torsion spring 6, and the first return torsion spring 6 is used to reset the lever 7 when it loses force. In the example of the present application, the first return torsion spring 6 is arranged at the first rotation axis 34 of the lever 7 and applies a force to the lever 7 in the direction opposite to the rotation direction when the unlocking pulling device 4 pulls. When the unlocking pulling device 4 pulls the lever 7 to rotate, it needs to overcome the force applied by the first return torsion spring 6 to the lever 7. When the unlocking pulling device 4 loses force or resets, the lever 7 returns to its original position under the action of the first return torsion spring 6. This setting discloses a reset mechanism of the lever 7. By introducing the first return torsion spring 6, the automatic reset function of the lever 7 is realized, bringing more stable, reliable and efficient operating performance to the unlocking system. It not only simplifies the operation process of the unlocking system, but also reduces the errors and failures that may be caused by manual reset, thereby improving the use experience and safety of the entire unlocking system.

[0074] As a preferred example of the present application, a limiting post 13 is provided on the pawl assembly 11. The limiting post 13 is used for abutting and limiting when the first pawl 702 performs the first manual unlocking movement. This design effectively prevents the first pawl 702 from excessive movement or deviation that may occur during the unlocking process by adding the limiting post 13 to provide abutting and limiting during the first manual unlocking movement of the first pawl 702, thereby avoiding potential jamming or failure risks, ensuring the accuracy and consistency of the unlocking movement, and making the unlocking system more durable and reliable.

[0075] As a preferred example of the present application, the tongue piece 8 is hinged and fixed on the first pawl 702. A second return torsion spring 9 is provided at the rotating shaft of the tongue piece 8. The second return torsion spring 9 is used to integrally hinge and fix the tongue piece 8 on the first pawl 702 and apply a force for the tongue piece 8 to return when the lever 7 returns.

[0076] This setting improves the smoothness and reliability of the unlocking operation by optimizing the design of the tongue piece 8 and its role in the unlocking mechanism. At the same time, the installation of the second return torsion spring 9 also ensures that the tongue piece 8 can automatically return after unlocking, preparing for the next operation, improving the reliability of the unlocking mechanism, extending its service life, and enhancing the performance and user experience of the entire unlocking mechanism.

[0077] As a preferred example of the present application, a first pushing groove 12 is provided on the pawl assembly 11. The first pushing groove 12 is used for abutting and limiting the tongue piece 8 during the second manual unlocking. This design ensures that the tongue piece 8 has a stable support point and force application direction when pushing the pawl assembly 11 to rotate, thereby improving the accuracy and reliability of unlocking, as well as the smoothness and user experience of unlocking.

[0078] In the example of the present application, the first pushing groove 12 is provided on the side of the limiting post 13 close to the rotating shaft of the lever 7. Through the above structural design, when the first manual unlocking is performed, the first pawl 702 will have an abutting movement with the limiting post 13. Due to the position setting of the first pushing groove 12, the tongue piece 8 will not contact the first pushing groove 12 during the first manual unlocking process. The driving rotational force of the pawl assembly 11 during the first manual unlocking comes from the first pawl 702 of the lever 7. The interaction between the lever 7 and the pawl assembly 11 is both stable and reliable, laying a solid foundation for the subsequent unlocking steps. Immediately afterwards, the lever 7 and the tongue piece 8 return. During the second manual unlocking, since the pawl assembly 11 rotates during the first manual unlocking, the tongue piece 8 will accurately have an abutting movement with the first pushing groove 12. This design enables the tongue piece 8 to push the pawl assembly 11 at an optimized angle and force, thereby driving the pawl assembly 11 and the lock tongue assembly 2 to achieve double-pull unlocking and separation.

[0079] Since the position of the first pushing groove 12 is adjacent to the rotation shaft of the lever 7, this layout not only enhances the torque effect during unlocking, greatly improves the stability and reliability of the two unlocking processes, and ensures the coherence of the unlocking action.

[0080] In the example of the present application, a first guiding post 16 is provided on the tongue piece 8, and the tongue piece 8 is limited and guided to move by the second return torsion spring 9 and the first guiding post 16 when the lever 7 is forced to rotate. Under this limiting and guiding action, the tongue piece 8 moves along a specific trajectory. During the first manual unlocking, the first pawl 702 abuts and moves against the limiting post 13 provided on the pawl assembly 11, and the tongue piece 8 never contacts the pawl assembly 11 during movement, and the pawl assembly 11 is driven to rotate by the first pawl 702; then when the lever 7 and the tongue piece 8 are reset and the second manual unlocking is performed, at this time, the lever 7 is no longer in contact with the limiting post 13, and the tongue piece 8 abuts against the first pushing groove 12 on the pawl assembly 11. When the tongue piece 8 moves along a specific trajectory under the limiting action of the second return torsion spring 9 and the first guiding post 16, it thus pushes the pawl assembly 11 to continue rotating, and further disengages from the locking tongue assembly 2 to achieve double-pull unlocking. In the example of the present application, the first guiding post 16 is guided to move under the action of the first guiding groove 14 on the cover plate 1.

[0081] The electric hatch lock described in the present application realizes the effective drive of the pawl assembly 11 and the smooth disengagement from the locking tongue assembly 2 through the division of labor and cooperation of two unlocking steps. Combined with precise limiting and guiding designs, it further improves the performance and user experience of the entire unlocking mechanism.

[0082] The electric hatch lock described in the present application abandons the traditional interlocking design, thus avoiding the large torque impact caused by the spring-up force during double-pull, and this improvement greatly enhances the structural stability and durability. In addition, the new double-pull unlocking structure has achieved a significant reduction in the Z-direction dimension. This optimization not only makes the overall layout of the hatch lock more flexible and convenient, but also greatly improves the service life of the hatch lock. Specifically, the new hatch lock structure can meet the service life requirements of 30,000 - 50,000 times for the front cabin and rear trunk designs, fully demonstrating its excellent durability and reliability.

[0083] The electric hatch lock described in the present application can perform the interchange design and assembly of single-pull unlocking and double-pull unlocking of the electric hatch lock by modifying the structure of the first abutting and limiting profile 706 on the lever 7 and adding or removing the tongue piece 8 and the second return torsion spring 9. The first abutting and limiting profile 706 is the profile edge line on the first pawl 702 that pushes the limiting post 13 to move.

[0084] On the basis of the above-mentioned double-pull manual unlocking process, if a one-pull unlocking function structure is required, its working principle is the same as the first manual unlocking in which the unlocking pulling device 4 first pulls the lever 7 to push the pawl assembly 11 to rotate in the opening direction, and only the lever 7 needs to be modified as shown in Figure 17 The dotted outline of the first abutment limit outline 706 shown in the figure and the tongue piece 8 and the second return torsion spring 9 are removed to achieve the requirement of the single-pull unlocking function. The electric hatch lock described in this application retains the original basic structure and function of the electric hatch lock, and can achieve the interchange between single-pull unlocking and double-pull unlocking only by exchanging parts. This modular and interchangeable design principle not only reduces production costs and maintenance difficulties, but also enhances the versatility and adaptability of the product.

[0085] In addition, in some special scenarios, such as when the hatch lock fails during motor unlocking or locking, or the power supply fails and cannot provide enough voltage to rotate the motor device 28 to generate the corresponding driving force, the failure of the electric unlocking function will also affect the manual double-pull or single-pull unlocking function.

[0086] In the example of the present application, the gear transmission mechanism 33 includes a worm 35, a double-linked straight-bevel gear 36, a double-linked straight-bevel gear 37 and other structures. The motor device 28 drives the helical gear part of the double-linked straight-bevel gear 36 to rotate through the worm 35, and the straight gear part in the double-linked straight-bevel gear 36 drives the double-linked straight-bevel gear 37 to rotate. The double-linked straight-bevel gear 37 is meshed with the fan gear 38 and can drive the fan gear 38 to rotate. The fan gear 38 is connected to the electric toggle lever 27 as a whole and can rotate along the lock tongue rivet 3. The double-linked straight-tooth gear 37 rotates along the double-linked straight-tooth rivet. An eccentric lever is sleeved on the upper end of the double-linked straight-tooth rivet. The lever 7 is inserted into the hole corresponding to the eccentric lever through the boss cylinder. When the lever 7 rotates, it can drive the eccentric lever to rotate around the double-linked straight-tooth rivet, and the double-linked straight-tooth gear rotates around the eccentric lever. The fan gear 38 is fixedly connected to the electric toggle lever 27 and rotates around the lock tongue rivet 3. When the hatch lock is between the half-locked state and the fully locked state, so that the hatch lock cannot be opened normally for maintenance or is in an unsafe state, by pulling the lever 7, the eccentric lever is driven to make the double spur gear 37 rotate eccentrically, so that the fan gear 38 and the double spur gear 37 are separated, and the movement obstacle of the gear transmission mechanism 33 is released. At this time, the hatch lock can be opened or completely closed. When the lever 7 is not pulled, the fan gear 38 is meshed with the double spur gear 37, as shown in Figure 2As shown in the figure; when the lever 7 is pulled, the eccentric lever rotates to drive the double-connected spur gear 37 to rotate eccentrically, so that the double-connected spur gear 37 meshes and disengages with the sector gear 38. At this time, the lock tongue assembly 2 can rotate freely, so as to fully open or close the hatch cover lock. By optimizing the gear transmission mechanism, especially by introducing the design of the eccentric lever and the sector gear, when the hatch cover lock cannot be opened normally, the transmission obstacle can be removed through simple manual operation, so that the hatch cover can be opened or closed smoothly. This improvement effectively avoids the inconvenience of maintenance or potential safety hazards caused by the failure of the hatch cover lock.

[0087] As a preferred example of the present application, the lever 7 includes a lever body 703. The first claw 701 and the first pawl 702 are arranged at an angle on the lever body 703. A second hinge hole 704 is provided on the lever body 703. The second hinge hole 704 is sleeved on the first rotating shaft 34. A second claw 705 is provided on the side of the first claw 701 away from the first pawl 702. The second claw 705 is arranged on the lever body 703. One end of the second claw 705 is connected to the disengaging link 31. The other end of the disengaging link 31 away from the second claw 705 is connected to the disengaging lever 32. When the lever 7 rotates under the pulling action of the unlocking pulling device 4, the disengaging link 31 and the disengaging lever 32 are driven to perform crank rotation. When the disengaging lever 32 rotates, the sector gear 38 and the double-connected spur gear 37 are separated. When the unlocking pulling device 4 performs manual unlocking, when the unlocking pulling device 4 pulls the wire rope to drive the lever 7 to rotate, the disengaging link 31, the disengaging lever 32 and the lever 7 are linked, and the disengaging lever 32 drives the gears to disengage. Compared with the eccentric lever transmission structure disclosed in the patent CN202310689541.9 previously disclosed by the applicant, this structure optimizes the requirements for the unlocking angle, has better adjustability and a wider angle matching requirement in terms of the angle stroke of the manual unlocking of the client, enhances the flexibility and adjustability of the manual unlocking, makes the unlocking angle more in line with the actual needs of the client, and improves the user experience. As a preferred example of the present application, a link return spring 26 is provided at the rotating shaft of the disengaging lever 32.

[0088] The electric hatchback lock described in this application includes a locking tongue assembly 2, an unlocking pulling device 4, a lever 7, a tongue piece 8, a pawl assembly 11, a cover plate 1, an upper housing 23, an electric shift lever 27, a motor device 28, a lower housing 29, a first reinforcing plate 30, a gear transmission mechanism 33, and signal sensor devices such as a locking tongue signal lever 20, a half-lock signal switch 21, a full-lock signal switch 22, a pawl signal switch 24, and a first reset switch 25. The motor device 28, the electric shift lever 27, the gear transmission mechanism 33, and the locking tongue signal lever 20, the half-lock signal switch 21, the full-lock signal switch 22, the pawl signal switch 24, and the first reset switch 25 are used for the electric hatchback lock described in this application to perform one or two electric unlockings in the electric unlock state; the unlocking pulling device 4, the lever 7, and the tongue piece 8 are used for the electric hatchback lock described in this application to perform one or two manual unlockings in the manual unlock state. Other structures are similar to those of the vehicle hatchback lock in the prior art and will not be described in detail here. When a hatchback electric opening instruction is received (controlled by means such as a remote control key, a touch screen, etc.), the motor device 28 starts to rotate, driving the electric shift lever 27 to push the pawl assembly 11 to unlock; when the vehicle receives a hatchback closing instruction (such as controlled by a remote control key, an in-vehicle touch screen, etc.), when the hatchback lock catch triggers the half-lock signal switch, the motor device 28 rotates the electric shift lever 27 to push the locking tongue assembly 2 to close the hatchback. In the case of a dead battery in the whole vehicle or other electrical faults, when the electric function of the electric hatchback lock fails, it is unlocked by manual single-pull or double-pull functions to open the hatchback in case of emergency or for maintenance.

[0089] In the example of this application, the locking tongue assembly 2 can rotate along the locking tongue rivet 3, the pawl assembly 11 can rotate along the pawl rivet 5, a third reset torsion spring 10 is arranged at the pawl rivet 5, and the third reset torsion spring 10 is used to drive the pawl assembly 11 to reset. The lever 7 can rotate along the lever rotating shaft, and a first reset torsion spring 6 is arranged on the lever rotating shaft. The first reset torsion spring 6 is a lever torsion spring and is used to reset the lever 7. The tongue piece 8 is hinged and fixed to the first pawl 702 of the lever 7, that is, a first hinge post 15 is arranged on the first pawl 702, and the first hinge hole 801 of the tongue piece 8 is sleeved on the first hinge post 15. A second reset torsion spring 9 is arranged on the first hinge post 15 for resetting the tongue piece 8.

[0090] In the example of the present application, in the first manual unlocking state, the unlocking pulling device 4 pulls the lever 7 to rotate counterclockwise, and the first pawl 702 on the lever 7 pushes the pawl assembly 11 to rotate clockwise. In the example of the present application, a limit post 13 is provided on the pawl assembly 11 for the first pawl 702 to push against the limit post 13 to drive the pawl assembly 11 to rotate during the first manual unlocking. The engaging portion on the pawl assembly 11 abuts against the limiting portion on the lock tongue assembly 2 to make it rotate counterclockwise until the pawl assembly 11 and the lock tongue assembly 2 are rotated to a state of being separated from the adjacent state. Then, the unlocking pulling device 4 loses force, and the lever 7 returns to its original position under the action of the first return torsion spring 6. The tongue piece 8 provided on the lever 7 returns to its original position under the action of the second return torsion spring 9. At this time, the electric hatch lock described in the present application completes the first manual unlocking, that is, the hatch lock is unlocked to the half-lock position. During the first manual unlocking state process, the tongue piece 8 slides in the first guide groove 14 of the cover plate 1 under the action of the second return torsion spring 9 and does not participate in the unlocking process.

[0091] When the first manual unlocking lever 7 returns to its original position, at this time, pulling the unlocking pulling device 4 again drives the lever 7 to rotate. The tongue piece 8 slides along the first guide groove 14 on the cover plate 1 under the action of the second return torsion spring 9, and the tongue piece 8 enters the engaging abutting feature of the pawl assembly 11, that is, the tongue piece 8 abuts against the first pushing groove 12 on the pawl assembly 11. At this time, the unlocking pulling device 4 continues to pull and drive the lever 7 to rotate, driving the tongue piece 8 to push the pawl assembly 11 to rotate, thereby completing the separation of the pawl assembly 11 and the lock tongue assembly 2 and completing the second manual unlocking to realize the full opening of the lock.

[0092] After the unlocking is completed, the unlocking pulling device 4 loses force or resets, and the lever 7 and the tongue piece 8 return to their original positions, waiting to execute the next double-pull unlocking working condition.

[0093] The electric hatchback lock described in this application is mainly applied to the front hood lock or rear hatch lock of a vehicle. The double-pull unlocking mechanism reduces the direct meshing time and force between the locking tongue assembly and the pawl assembly through step-by-step unlocking, significantly improving the service life of the hatchback lock and meeting the service life requirement of up to 30,000 - 50,000 times for the electric vehicle hatchback lock. The non-intermeshing design and the design of reducing the Z-direction dimension not only optimize the overall structure of the hatchback lock, but also make the layout of the hatchback lock on the vehicle more flexible and convenient, reducing the weight and cost of the vehicle. At the same time, by introducing the disengaging link 31 and the disengaging lever 32 linked to the lever 7, the problem that the hatchback lock cannot be normally opened in a specific state is solved. By manually operating the lever 7, the obstruction of the gear transmission mechanism can be removed, ensuring that the hatchback lock can be smoothly opened or closed, optimizing the unlocking angle, enhancing the flexibility and adjustability of manual unlocking, making the unlocking operation more in line with the actual needs of the client. The integrated design of electric unlocking and manual unlocking functions simplifies the structure, reduces the cost, and at the same time improves the stability and durability of the system, providing users with a more stable, durable and easily arranged option, meeting the needs of various application scenarios and promoting the further development of hatchback lock technology.

[0094] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electric hatch lock, characterized in that: include: The pawl assembly (11) is rotatably arranged, and when rotating, it is separated from the lock tongue assembly (2) or pressed against the lock tongue assembly (2) according to the rotation direction, so as to form a fully open state or a fully locked state; The bolt assembly (2) is rotatably arranged and can abut against the pawl assembly (11) to lock or disengage to unlock; The electric toggle lever (27) can be driven to rotate by the motor device (28), and when rotating, the electric toggle lever (27) can push the pawl assembly (11) to rotate in the opening direction to a position where the pawl assembly (11) is in a fully open state with the bolt assembly (2), and the electric toggle lever (27) can drive the pawl assembly (11) to rotate in the opposite direction of opening to electrically close the bolt assembly (2); The unlocking pulling device (4) is used to drive the ratchet assembly (11) to rotate so that it abuts against the lock tongue assembly (2) and rotates to a fully open state; The tension spring (17) is used for pulling the lock tongue assembly (2) to rotate in the opening direction and providing a spring force for opening the hatch cover when the lock tongue assembly (2) is in a fully open state.

2. The electric hatch lock according to claim 1, characterized in that: The electric bonnet lock comprises at least two states: a fully open state and a fully locked state. When the electric bonnet lock is in the fully locked state, the pawl metal part in the pawl assembly (11) abuts against the first abutting boss (202) in the lock tongue assembly (2) to limit the position, and the pawl assembly (11) is rotated and unlocked under the driving action of the electric toggle lever (27) until the pawl assembly (11) is completely disengaged from the first abutting boss (202) in the lock tongue assembly (2), and the electric bonnet lock is in the fully open state.

3. The electric hatch lock according to claim 2, characterized in that: The electric hatch lock also includes a semi-locked state, wherein the lock tongue assembly (2) and the pawl assembly (11) are in a critical position about to disengage.

4. The electric hatch lock according to claim 1, 2 or 3, characterized in that: The electric bonnet lock further comprises an upper shell (23) and a lower shell (29); the upper shell (23) and the lower shell (29) are detachably fixedly connected; a motor device (28) and a gear transmission mechanism (33) are arranged between the upper shell (23) and the lower shell (29); the motor device (28) drives the electric toggle lever (27) to rotate forward or reversely through the gear transmission mechanism (33); a first bottom plate (18) is arranged on a side of the upper shell (23) away from the lower shell (29); and the lock tongue assembly (2) is hingedly fixed between the first bottom plate (18) and the upper shell (23).

5. The electric hatch lock according to claim 1, 2, 3 or 4, characterized in that: The lock tongue assembly (2) and the electric toggle rod (27) are both hingedly fixed on the lock tongue rivet (3); when electrically unlocking, the electric toggle rod (27) drives the pawl assembly (11) to rotate under the action of the motor device (28), so that the pawl assembly (11) is separated from the lock tongue assembly (2).

6. The electric hatch lock according to claim 4, characterized in that: A lever (7) is provided on a side of the upper shell (23) away from the lower shell (29); the lever (7) is rotated to push the ratchet assembly (11) toward the unlocking direction under the pulling action of the unlocking pulling device (4) and is reset after the unlocking pulling device (4) loses its force.

7. The electric hatch lock according to claim 6, characterized in that: A tongue piece (8) is arranged on the lever (7), and the tongue piece (8) is hingedly arranged on the lever (7) and can rotate when the lever (7) rotates and reset when the lever (7) resets. When unlocking in the fully locked state, the unlocking pulling device (4) pulls the lever (7) to rotate, and the lever (7) drives the pawl assembly (11) to move to a critical state of disengagement from the bolt assembly (2) or a state before disengagement, thereby completing the first manual unlocking. After the lever (7) resets, the unlocking pulling device (4) pulls the lever (7) to rotate again, and the tongue piece (8) drives the pawl assembly (11) to continue to move and disengage from the bolt assembly (2), thereby completing the second manual unlocking.

8. The electric hatch lock according to claim 7, characterized in that: The lever (7) comprises a lever body (703), a first pulling claw (701), and a first shifting claw (702); the first shifting claw (702) and the first pulling claw (701) are arranged at an angle on the lever body (703); the first pulling claw (701) is used to be connected to a pull line of an unlocking pulling device (4); and the first shifting claw (702) is used to push the ratchet assembly (11) to move during the first manual unlocking.

9. The electric hatch lock according to claim 8, characterized in that: The tongue piece (8) is hingedly fixed on the first pawl (702), a second reset torsion spring (9) is arranged at the rotation axis of the tongue piece (8), a limit column (13) is arranged on the pawl assembly (11), and the limit column (13) is used for the first pawl (702) to abut and limit during the first manual unlocking movement, and a first push groove (12) is arranged on the pawl assembly (11), and the first push groove (12) is used for the tongue piece (8) to push and limit during the second manual unlocking movement.

10. The electric hatch lock according to claim 8, characterized in that: A second pulling claw (705) is arranged on the lever body (703), and the second pulling claw (705) is arranged on a side of the first pulling claw (701) away from the first pulling claw (702). One end of the second pulling claw (705) is connected to a disengagement connecting rod (31), and the other end of the disengagement connecting rod (31) is connected to a disengagement lever (32). When the lever (7) is rotated under the pulling action of the unlocking pulling device (4), it drives the disengagement connecting rod (31) and the disengagement lever (32) to perform crank rotation. When the disengagement lever (32) rotates, it separates the fan gear (38) and the double spur gear (37) in the gear transmission mechanism (33).

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