Electric opening device for automobile door lock and automobile door lock

Abstract

The utility model relates to the technical field of automobile door locks, in particular to an automobile door lock electric opening device and an automobile door lock, the automobile door lock electric opening device comprises a mounting base body, a rotating piece, a driving arm and a driver, and a spring bolt is rotatably mounted on the mounting base body; the rotating piece can be mounted on the mounting base body in a reset manner, and the rotating piece can drive the spring bolt to rotate; the driving arm is rotatably mounted on the mounting base body; one end of the driving arm can drive the rotating piece to rotate; and the driver is mounted on the mounting base body, and is used for driving the driving arm to swing around the rotating center of the driving arm and driving the spring bolt to rotate through the rotating piece so as to realize unlocking and locking actions. The electric unlocking device for the automobile door lock and the automobile door lock are simple in structure, direct in driving and suitable for being matched with an existing mechanical unlocking structure.

Description

Technical Field

[0001] This utility model relates to the field of automotive door lock technology, specifically to an electric opening device for automotive door locks and an automotive door lock. Background Technology

[0002] Current car door locks have a relatively high level of integration, basically integrating electric unlocking mechanisms into existing mechanical door locks. With the development of electronic technology, sensor-activated door unlocking has also become widespread in cars. Its unlocking principle is that the car key sensor receives a signal and sends it to the actuator, which then controls the electric motor to disengage the latch and bolt, thereby unlocking the door.

[0003] For example, patent CN201911027923.5, "An Electric Unlocking Structure for Car Door Locks," provides a connection mechanism between the actuator arm of an electric actuator and the door lock pawl. The actuator relies on a motor inside to rotate, driving a worm gear and gear to push the actuator arm to complete the unlocking action. While the structure is compact, it has poor compatibility with other unlocking structures. Furthermore, the use of a worm gear and gear combination results in low transmission efficiency and high dynamic friction loss, leading to potential jamming during unlocking and placing high demands on the motor. Frequent use also causes severe wear on the worm gear and gear, resulting in poor meshing and making replacement very troublesome later. Utility Model Content

[0004] In order to overcome one of the shortcomings of the prior art, the purpose of this utility model is to provide an electric unlocking device for car door locks and a car door lock. The electric unlocking device for car door locks and the car door lock have a simple structure, direct drive, and are suitable for adaptation with existing mechanical unlocking structures.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] An electric unlocking device for automotive door locks includes a mounting base, a rotating component, a drive arm, and a driver. A latch is rotatably mounted on the mounting base. The rotating component is repositionable and mounted on the mounting base, and can drive the latch to rotate. The drive arm is rotatably mounted on the mounting base, and one end of the drive arm can drive the rotating component to rotate. The driver is mounted on the mounting base and is used to drive the drive arm to swing around its rotation center and drive the latch to rotate through the rotating component, thereby realizing the unlocking and closing action.

[0007] Furthermore, the driver includes a motor, a turntable disposed on the rotating end of the motor, and a pull rod. The motor is mounted on the mounting base. One end of the pull rod is hinged to the non-rotation center of the turntable, and the other end of the pull rod is hinged to the corresponding end of the drive arm.

[0008] Furthermore, a support block is provided on the mounting base, and one end of the motor rotating axially outward is rotatably mounted on the support block.

[0009] Furthermore, the end of the pull rod that cooperates with the motor is provided with a connector, and the connector is provided with a connecting post, which is rotatably mounted on the corresponding end of the drive arm.

[0010] Furthermore, the mounting base is provided with a locking position, and the motor is locked in the locking position.

[0011] Furthermore, the rotating component includes a rotating cylinder and a resetting component. The rotating cylinder is rotatably mounted on a fixed shaft on the mounting base. One end of the resetting component is connected to the rotating cylinder, and the other end of the resetting component is connected to the mounting base. A force-receiving block and a driving block are respectively provided at both ends of the rotating cylinder. The force-receiving block can abut against the end of the driving arm corresponding to it, and the driving block can make the locking tongue rotate.

[0012] Furthermore, the reset component is a coil spring, which is fitted onto the outer wall of the rotating drum. A limiting protrusion is provided on the outer wall of the rotating drum, and one end of the coil spring is connected to the limiting protrusion.

[0013] Furthermore, the outward end of the drive block is always in contact with the drive latch on the locking tongue.

[0014] Furthermore, the mounting base is provided with two limiting posts for limiting the swing of the drive arm, and the two limiting posts are located on both sides of the swing area of ​​the drive arm.

[0015] A car door lock, including an electric unlocking device for the car door lock.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model discloses an electric unlocking device for automotive door locks and an automotive door lock. The device utilizes a driver to drive a drive arm to swing around its rotation center, which in turn drives the bolt to rotate via a rotating component, thus achieving the unlocking action. Since the drive arm is essentially a lever structure, the force exerted on the rotating component during the driving process is large, effectively reducing the driving force required by the motor. Simultaneously, the structure formed by the rotating component, drive arm, and bolt is similar to a crank-cam structure, resulting in more direct drive and a longer service life. Furthermore, using the rotating component as an intermediate force-applying structure to transmit the force of the drive arm on the bolt facilitates compatibility with other existing unlocking structures, enabling multiple unlocking methods and facilitating future integration of automotive door locks.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the electric unlocking device for car door locks in this embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the electric unlocking device for car door locks in this embodiment of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of the driver and the drive arm cooperating in an embodiment of this utility model;

[0022] Figure 4 This is a structural schematic diagram of the car door lock in an embodiment of this utility model.

[0023] Explanation of icon numbers:

[0024] Mounting base 10, locking tongue 11, support block 12, locking position 13, fixed shaft 14, drive bayonet 15, limit post 16, rotating component 20, rotating drum 21, reset component 22, force-bearing block 23, drive block 24, limiting protrusion ring 25, drive arm 30, driver 40, motor 41, turntable 42, pull rod 43, connector 44, connecting post 45 Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] Reference Figures 1 to 4 The illustration shows a car door lock, including an electric unlocking device. The electric unlocking device includes a mounting base 10, a rotating component 20, a drive arm 30, and a driver 40. A latch 11 is rotatably mounted on the mounting base 10. The rotating component 20 is repositionable and mounted on the mounting base 10, and the rotating component 20 can drive the latch 11 to rotate. The drive arm 30 is rotatably mounted on the mounting base 10, and one end of the drive arm 30 can drive the rotating component 20 to rotate. The driver 40 is mounted on the mounting base 10 and is used to drive the drive arm 30 to swing around its rotation center, and through the rotating component 20, drive the latch 11 to rotate, thereby realizing the unlocking and closing action.

[0027] Specifically, the driver 40 is configured according to the actual installation space. For example, it can be driven by a motor driving a crank cam, or it can be driven by a motor directly driving a cable. The rotating component 20 is a transition component in this application. In actual installation, it needs to cooperate with other unlocking methods. Therefore, the rotating component 20 can be a part of a clutch mechanism, such as in patent CN212249601U – a combination of a car door lock and a locking and clutch structure in a car. In this case, multiple unlocking mechanisms can be used together to drive the bolt 11 to swing through the rotating component 20. Since this application only protects the electrically operated unlocking method, only the actual structure of the rotating component 20 used in the electrically operated unlocking method will be described. Furthermore, the bolt 11 and the slot on the mounting base 10 together constitute the latch structure. This structure is actually a conventional design and will not be described in detail here.

[0028] This electric unlocking device for automotive door locks and the automotive door lock itself utilize a driver 40 to drive a drive arm 30 to swing around its rotation center, thereby rotating the bolt 11 via a rotating component 20 to achieve the unlocking action. Since the drive arm 30 is essentially a lever structure, the force exerted on the rotating component 20 during the driving process is large, effectively reducing the driving force required by the motor 41. Simultaneously, the structure formed by the rotating component 20, drive arm 30, and bolt 11 resembles a crank-cam structure, resulting in more direct drive and a longer service life. Furthermore, using the rotating component 20 as an intermediate force-applying structure to transmit the force of the drive arm 30 on the bolt 11 facilitates compatibility with other existing unlocking structures, enabling multiple unlocking methods and facilitating future integration of automotive door locks. It should be noted that the drive method using the drive arm 30 allows for non-coplanar driving between the drive arm 30 and the rotating component 20, which facilitates adjustments to the entire door lock's installation structure. Compared to traditional worm gear designs, this allows for a more decentralized design of the door lock structure, simplifying future maintenance.

[0029] See Figure 2 In one embodiment of this application, in order to limit the swing angle of the drive arm 30, two limiting posts 16 are provided on the mounting base 10 to limit the swing of the drive arm 30. The two limiting posts 16 are located on both sides of the swing area of ​​the drive arm 30. In fact, the limiting posts 16 are snapped into corresponding slots in the mounting base 10, which facilitates replacement later.

[0030] See Figures 1 to 3In this application, for better transmission, the rotating component 20 includes a rotating cylinder 21 and a resetting component 22. The rotating cylinder 21 is rotatably mounted on a fixed shaft 14 on the mounting base 10. One end of the resetting component 22 is connected to the rotating cylinder 21, and the other end is connected to the mounting base 10. A force-receiving block 23 and a driving block 24 are respectively provided at both ends of the rotating cylinder 21. The force-receiving block 23 can abut against the corresponding end of the driving arm 30, and the driving block 24 can rotate the locking tongue 11. In practice, for structural simplicity, the resetting component 22 is a coil spring, which is mounted on the outer wall of the rotating cylinder 21. A limiting protrusion 25 is provided on the outer wall of the rotating cylinder 21, and the corresponding end of the coil spring is connected to the limiting protrusion 25.

[0031] In the above embodiments, if other unlocking methods also drive the rotating component 20 to rotate, then you can refer to patent CN212249601U - a design of an integrated structure of a car door lock and a locking structure and a clutch structure in a car, which will not be described in detail here.

[0032] In the above embodiments, in order to better drive the latch 11 and keep it in contact with the area where the latch 11 is driven, the outward end of the drive block 24 is always in contact with the drive slot 15 on the latch 11. In this embodiment, the outward end of the drive block 24 is similar to the tooth shape of a gear, and the drive slot 15 is similar to the tooth groove structure of a gear. In this way, the drive block 24 can better drive the latch 11 to rotate around its rotation center.

[0033] See Figures 1 to 3 In one embodiment of this application, to better achieve the swinging of the drive arm 30, the driver 40 includes a motor 41, a turntable 42 disposed on the rotating end of the motor 41, and a pull rod 43. The motor 41 is mounted on the mounting base 10. One end of the pull rod 43 is hinged to the non-rotation center of the turntable 42, and the other end of the pull rod 43 is hinged to the corresponding end of the drive arm 30. The turntable 42 is designed as a drive arm, and its disc shape is primarily for maintaining dynamic balance when the motor 41 rotates. In this application, the main body of the pull rod 43 is a rigid structure, but to accommodate the movement of the drive arm 30, both ends of the pull rod 43 have a certain degree of flexibility, allowing for bending deformation to adapt to the movement. Using the pull rod 43 design, the forward and reverse rotation of the motor 41 can be used to achieve the reset or drive of the drive arm 30.

[0034] Of course, in some embodiments, the pull rod 43 can be replaced with a pull rope. In this case, in order to achieve the reset of the drive arm 30, a reset structure, such as a spring or a spring sheet, can be set between the drive arm 30 and the mounting base 10.

[0035] To ensure dynamic balance during the operation of the motor 41 driving the turntable 42, a support block 12 is provided on the mounting base 10. One end of the motor 41 with its rotation axis rotatably mounted on the support block 12, which supports the rotation axis of the motor 41. Furthermore, to facilitate motor 41 installation, a locking position 13 is provided on the mounting base 10, where the motor 41 is locked in place.

[0036] Furthermore, in an improved embodiment, in order to ensure that the pull rod 43 always adapts to the swing angle change of the drive arm 30 during the swinging process, the end of the pull rod 43 that cooperates with the motor 41 is provided with a connector 44, and the connector 44 is provided with a connecting post 45, which is rotatably mounted on the corresponding end of the drive arm 30.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An electric unlocking device for automotive door locks, characterized in that, include Mounting base, on which a locking tongue is rotatably mounted; A rotating component that can be reset and mounted on the mounting base, the rotating component being able to drive the locking tongue to rotate; A drive arm is rotatably mounted on the mounting base; one end of the drive arm is capable of driving the rotating component to rotate. A driver, mounted on the mounting base, is used to drive the drive arm to swing around its rotation center and drive the lock tongue to rotate through the rotating component, so as to realize the opening and closing locking action.

2. The electric unlocking device for automobile door locks according to claim 1, characterized in that: The driver includes a motor, a turntable mounted on the rotating end of the motor, and a pull rod. The motor is mounted on the mounting base. One end of the pull rod is hinged to the non-rotation center of the turntable, and the other end of the pull rod is hinged to the corresponding end of the drive arm.

3. The electric unlocking device for automobile door locks according to claim 2, characterized in that: The mounting base is provided with a support block, and one end of the motor that rotates outward is rotatably mounted on the support block.

4. The electric unlocking device for a car door lock according to claim 2, characterized in that: The pull rod is provided with a connector at one end that cooperates with the motor. The connector is provided with a connecting post, and the connecting post is rotatably mounted on the corresponding end of the drive arm.

5. The electric unlocking device for a car door lock according to claim 2, characterized in that: The mounting base is provided with a mounting position, and the motor is mounted on the mounting position.

6. The electric unlocking device for a car door lock according to claim 1, characterized in that: The rotating component includes a rotating cylinder and a resetting component. The rotating cylinder is rotatably mounted on a fixed shaft on the mounting base. One end of the resetting component is connected to the rotating cylinder, and the other end of the resetting component is connected to the mounting base. A force-receiving block and a driving block are respectively provided at both ends of the rotating cylinder. The force-receiving block can abut against the end of the driving arm corresponding to it, and the driving block can make the locking tongue rotate.

7. The electric unlocking device for a car door lock according to claim 6, characterized in that: The reset component is a coil spring, which is fitted onto the outer wall of the rotating drum. A limiting protrusion is provided on the outer wall of the rotating drum, and one end of the coil spring is connected to the limiting protrusion.

8. The electric unlocking device for a car door lock according to claim 6, characterized in that: The outward end of the drive lever is always in contact with the drive latch on the lock tongue.

9. An electric unlocking device for automobile door locks according to any one of claims 1-8, characterized in that: The mounting base is provided with two limiting posts for limiting the swing of the drive arm, and the two limiting posts are located on both sides of the swing area of ​​the drive arm.

10. A car door lock, characterized in that: Includes the electric unlocking device for automobile door locks as described in any one of claims 1-9.

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