CN215332121U

CN215332121U - Self-closing actuator for automobile door lock

Info

Publication number: CN215332121U
Application number: CN202120688360.0U
Authority: CN
Inventors: 吴贲华; 邹彪; 伍建; 顾峰; 周成奕; 陈鹏舟; 金纯�
Original assignee: Jiangsu Qida Electromechanical Co ltd
Current assignee: Jiangsu Qida Electromechanical Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-12-28
Anticipated expiration: 2031-04-02

Abstract

The present application relates to a self-closing actuator for an automotive door lock, comprising a housing assembly, a transmission mechanism, a wire harness assembly and a driver. The transmission mechanism is arranged in the shell component. The transmission mechanism comprises a driving piece, a worm and gear assembly, a driving gear and a pulling piece. The driving piece is connected with the worm gear assembly, the worm gear assembly is connected with the driving gear, one side of the driving gear is provided with an arc-shaped boss, one end of the pulling piece is connected with the driving gear, and the other end of the pulling piece extends out of the shell assembly to be connected with the automobile door lock. The wiring harness assembly comprises a power line, a plug, a signal line and a microswitch. The driver is connected with the plug, one end of the power cord is connected with the plug, the other end of the power cord is connected with the driving piece, one end of the signal cord is connected with the plug, the other end of the signal cord is connected with the micro switch, and the micro switch and the arc-shaped boss are correspondingly arranged in the shell assembly. The automatic suction and reset functions of the self-suction actuator are realized by monitoring the rotation angle of the driving gear through the microswitch.

Description

Self-closing actuator for automobile door lock

Technical Field

The present application relates to the field of automotive latching systems and door lock systems, and more particularly to a self-latching actuator for an automotive door lock.

Background

In order to meet the trend that the market pursues the driving of passenger cars for comfort and automation, the current passenger cars are increasingly large in structure and increasingly high in automation degree, and accordingly, the required automobile door metal plates are increasingly large in size, increasingly heavy in weight and increasingly high in door lock automation degree.

In the process of realizing the application, the applicant finds that the self-closing door lock adopted by the existing vehicle type needs to overcome the weight of a door sheet metal and certain sealing force, the requirement on the door sheet metal is higher, a larger space needs to be reserved for installing the door lock and the actuator, the actuator is complex in structure, the appearance is not only large and inconvenient to install, but also the cost is higher, so the vehicle type matched with the self-closing door lock and the actuator can be greatly limited, one vehicle type can only be provided with one self-closing door lock and actuator, the research and development cost of a new vehicle type is higher, and the new product quality has certain potential risk on the premise of not verifying mass production, and is not beneficial to the platform design of the self-closing door lock.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, an embodiment of the present application provides a self-closing actuator for an automobile door lock. The specific technical scheme is as follows:

in a first aspect, there is provided a self-closing actuator for an automotive door lock, comprising: a housing assembly; the transmission mechanism is arranged in the shell assembly and comprises a driving piece, a worm and gear assembly, a driving gear and a pulling piece, the driving piece is connected with the worm and gear assembly, the worm and gear assembly is connected with the driving gear, an arc-shaped boss is arranged on one side of the driving gear, one end of the pulling piece is connected with the driving gear, and the other end of the pulling piece extends out of the shell assembly and is connected with the automobile door lock; the wiring harness assembly is connected with the transmission mechanism and comprises a power line, a plug, a signal line and a microswitch, one end of the power line is connected with the plug, the other end of the power line is connected with the driving piece, one end of the signal line is connected with the plug, the other end of the signal line is connected with the microswitch, the microswitch and the arc-shaped boss are correspondingly arranged in the shell assembly, when the arc-shaped boss is in contact with the microswitch, the microswitch is in a state of being switched on, and when the arc-shaped boss is separated from the microswitch, the microswitch is in a state of being switched off; and the driver is connected with the plug and is used for controlling the driving piece to drive the driving gear to rotate.

In a first possible implementation manner of the first aspect, when the driver sends the first pulse signal to the driving member, the driving gear drives the driving gear to rotate in the forward direction through the worm and gear assembly, and the driving gear drives the arc-shaped boss to rotate towards the micro switch.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, when the arc-shaped boss contacts with the micro switch, the micro switch is in an on state, the driver sends a second pulse signal to the driving member, the driving gear drives the driving gear to rotate in the reverse direction through the worm and gear assembly, and when the arc-shaped boss is separated from the micro switch, the driver stops sending the second pulse signal to the driving member.

In a third possible implementation manner of the first aspect, a motor connector terminal is disposed at the other end of the power line, and the motor connector terminal is connected to a pin of the driving member.

In a fourth possible implementation manner of the first aspect, one side of the driving gear is provided with a spherical groove, one end of the pulling member is provided with a ball head, and the ball head is arranged in the spherical groove.

In a fifth possible implementation manner of the first aspect, the worm and gear assembly includes a worm and a transmission worm wheel, the worm is connected with the driving piece, the transmission worm wheel has a large gear surface and a small gear surface, the worm is meshed with the large gear surface, and the driving gear is meshed with the small gear surface.

In a sixth possible implementation manner of the first aspect, the housing assembly includes an upper housing, a lower housing, a transmission worm shaft, and a driving gear shaft, the upper housing covers the lower housing, the lower housing has a driving member mounting groove therein for mounting a driving member, and the transmission worm shaft and the driving gear shaft are disposed in the lower housing for mounting the worm and gear assembly and the driving gear.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the housing assembly further includes a buffer rubber and a distance shaft sleeve, one side of the lower housing is provided with a mounting hole, the buffer rubber is sleeved on the mounting hole, and the distance shaft sleeve is sleeved in the buffer rubber.

With reference to the sixth possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the upper shell and the lower shell are fixedly connected through self-tapping screws and self-provided buckles thereof.

With reference to the sixth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the transmission worm shaft and the drive gear shaft are disposed in the lower housing by insert injection molding.

Compared with the prior art, the application has the advantages that:

the application discloses a from closing executor for automobile door lock, it drives drive gear forward through driver control driving piece and rotates, make the pulling piece drive automobile door lock motion, carry out automatic actuation action, when arc boss and micro-gap switch contact completely, micro-gap switch is the on-off state, the driver is the driving gear reverse rotation of controling again, carry out the automatic re-setting action, and when arc boss and micro-gap switch divide, driver control driving piece stops, so realize from closing executor's automatic actuation and reset function.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural view of a self-closing actuator for an automotive door lock according to an embodiment of the present application;

FIG. 2 is a schematic partial structural view of a self-actuating actuator for an automotive door lock according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a drive gear according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a wire harness assembly according to an embodiment of the present application;

FIG. 5 is a schematic view of a worm gear according to an embodiment of the present application;

fig. 6 is a partial structural schematic diagram of a housing assembly according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As used herein, the terms "first," "second," and the like, do not denote any order or importance, nor do they limit the present application, but rather are used to distinguish one element from another or from another element or operation described in the same technical language.

Please refer to fig. 1 and fig. 2, which are a schematic structural diagram and a partial structural diagram of a self-attraction actuator for an automobile door lock according to an embodiment of the present application; as shown, a self-closing actuator 1 for an automotive door lock includes a housing assembly 2, a transmission mechanism 3, a wire harness assembly 4, and a driver 5. The transmission mechanism 3 is disposed in the housing assembly 2 and is connected to the driver 5 through the harness assembly 4. The transmission mechanism 3 includes a driving member 31, a worm gear assembly 32, a driving gear 33 and a pulling member 34. The drive 31 is connected to a worm gear assembly 32, and the worm gear assembly 32 is connected to a drive gear 33. Please refer to fig. 3, which is a schematic structural diagram of a driving gear according to an embodiment of the present application; as shown in the figure, an arc boss 331 is disposed on one side of the driving gear 33, and one end of the pulling member 34 is connected to the driving gear 33, in this embodiment, a spherical groove 332 is disposed on one side of the driving gear 33, and a ball (not shown) is disposed on one end of the pulling member 34, and the ball is disposed in the spherical groove 332, but not limited thereto. The other end of the pull member 34 extends out of the housing assembly 2 to connect with an automotive door latch. The driving member 31 drives the car door lock to move through the worm gear assembly 32, the driving gear 33 and the pulling member 34. The driving member 31 is a motor, but not limited thereto.

Referring to fig. 4 and also to fig. 2, fig. 4 is a schematic structural diagram of a wire harness assembly according to an embodiment of the present application; as shown, the wiring harness assembly 4 includes a power cord 41, a plug 42, a signal wire 43, and a microswitch 44. One end of the power line 41 is connected with the plug 42, the other end of the power line 41 is connected with the driving member 31, the plug 42 is connected with the driver 5, and the driver 5 and the driving member 31 realize pulse signal transmission through the power line 41. Specifically, the other end of the power line 41 is provided with a motor plug terminal 411, and the motor plug terminal 411 is plugged into a pin of the driving member 31, but not limited thereto. One end of the signal line 43 is connected to the plug 42, and the other end of the signal line 43 is connected to the microswitch 44. The micro switch 44 and the arc-shaped boss 331 are correspondingly disposed in the housing component 2, where the correspondence means that the arc-shaped boss 331 can contact with the micro switch 44 when the driving gear 33 drives the arc-shaped boss 331 to rotate, wherein when the arc-shaped boss 331 contacts with the micro switch 44, the micro switch 44 is in an on state, and when the arc-shaped boss 331 is separated from the micro switch 44, the micro switch 44 is in an off state, so that the rotation angle of the driving gear 33 is monitored through the micro switch 44. The driver 5 is arranged to control the driver 31 to rotate the driving gear 33. The driver 5 uses an ECU or BCM, but not limited thereto.

When the self-closing actuator 1 of this embodiment is used, when the driver 5 sends the first pulse signal to the driving member 31, the driving member 31 drives the driving gear 33 to rotate forward through the worm and gear assembly 32, the pulling member 34 drives the car door lock to move, and performs the automatic closing operation, the driving gear 33 also drives the arc-shaped boss 331 to rotate toward the micro switch 44, when the arc-shaped boss 331 is completely contacted with the micro switch 44, the micro switch 44 is in a passage state, the driver 5 sends a second pulse signal to the driving piece 31, the driving gear 33 drives the driving gear 33 to rotate reversely through the worm and gear assembly 32, and performs an automatic reset action, when the arc-shaped boss 331 is separated from the microswitch 44, the driver 5 stops sending the second pulse signal to the driving member 31, and at the moment, the driving member 31 stops driving, so that the automatic attraction and reset functions of the self-attraction actuator 1 are realized.

The structures of the worm gear assembly 32 and the housing assembly 2 of the present embodiment will be described in detail below. Referring back to fig. 2, the worm gear assembly 32 includes a worm 321 and a worm gear 322, and the worm 321 is connected to the driving member 31. Please refer to fig. 5, which is a schematic structural diagram of a worm gear according to an embodiment of the present application; as shown in the figure, the transmission worm wheel 322 has a large gear surface 3221 and a small gear surface 3222, the worm 321 is engaged with the large gear surface 3221, and the driving gear 33 is engaged with the small gear surface 3222, so that the output force of the driving member 31 can be expanded through the secondary transmission ratio of the worm and gear assembly 32 according to the transmission ratio design of the worm 321 and the transmission worm wheel 322, and finally, a load larger than the output force can be driven.

Referring to fig. 6 and also to fig. 1, fig. 6 is a schematic partial structure diagram of a housing assembly according to an embodiment of the present disclosure; as shown, the housing assembly 2 includes an upper housing 21, a lower housing 22, a drive worm shaft 23 and a drive gear shaft 24. The upper housing 21 covers the lower housing 22, and in the embodiment, the upper housing 21 and the lower housing 22 are fixedly connected by tapping screws and their own fasteners, but not limited thereto. The lower case 22 has a driver mounting groove 221 therein, the driver 31 is placed in the driver mounting groove 221, and the worm gear shaft 23 and the drive gear shaft 24 are provided in the lower case 22 for mounting the worm gear assembly 32 and the drive gear 33, respectively. In the present embodiment, the transmission worm shaft 23 and the driving gear shaft 24 are disposed in the lower case 22 by insert injection, but not limited thereto. In this embodiment, the housing assembly 2 further includes a buffer rubber 25 and a distance shaft sleeve 26, a mounting hole 222 is provided on one side of the lower housing 22, the buffer rubber 25 is sleeved on the mounting hole 222, the distance shaft sleeve 26 is sleeved in the buffer rubber 25, and the distance shaft sleeve 26 is finally connected with the metal plate of the automobile body through a bolt

To sum up, the application provides a from closing executor for automobile door lock, it drives drive gear forward through driver control driving piece and rotates, make the pulling piece drive automobile door lock motion, carry out automatic actuation action, when arc boss and micro-gap switch contact completely, micro-gap switch is the on-off state, the driver is the driving gear reverse rotation of control driving piece again, carry out the automatic re-setting action, and when arc boss and micro-gap switch divide, driver control driving piece stops, so realize from closing executor's automatic actuation and reset function.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A self-closing actuator for an automotive door lock, comprising:

a housing assembly;

the transmission mechanism is arranged in the shell assembly and comprises a driving piece, a worm and gear assembly, a driving gear and a pulling piece, the driving piece is connected with the worm and gear assembly, the worm and gear assembly is connected with the driving gear, an arc-shaped boss is arranged on one side of the driving gear, one end of the pulling piece is connected with the driving gear, and the other end of the pulling piece extends out of the shell assembly and is connected with the automobile door lock;

the wiring harness assembly is connected with the transmission mechanism and comprises a power line, a plug, a signal line and a microswitch, one end of the power line is connected with the plug, the other end of the power line is connected with the driving piece, one end of the signal line is connected with the plug, the other end of the signal line is connected with the microswitch, the microswitch and the arc-shaped boss are correspondingly arranged in the shell assembly, when the arc-shaped boss is in contact with the microswitch, the microswitch is in an on state, and when the arc-shaped boss is separated from the microswitch, the microswitch is in an off state;

the driver is connected with the plug and is used for controlling the driving piece to drive the driving gear to rotate.

2. The self-closing actuator according to claim 1, wherein when the driver sends a first pulse signal to the driving member, the driving gear drives the driving gear to rotate in a forward direction through the worm and gear assembly, and the driving gear drives the arc-shaped boss to rotate towards the micro switch.

3. The self-closing actuator according to claim 2, wherein the micro switch is in an on state when the arc boss is in contact with the micro switch, the driver sends a second pulse signal to the driving member, the driving gear drives the driving gear to rotate in a reverse direction through the worm gear assembly, and the driver stops sending the second pulse signal to the driving member when the arc boss is separated from the micro switch.

4. The self-closing actuator according to claim 1, wherein the other end of the power cord is provided with a motor connector terminal, and the motor connector terminal is connected to a pin of the driving member.

5. The self-closing actuator according to claim 1, wherein one side of the driving gear is provided with a spherical groove, and one end of the pulling member is provided with a ball head, and the ball head is disposed in the spherical groove.

6. The self-closing actuator according to claim 1, wherein the worm and gear assembly comprises a worm and a drive worm gear, the worm being connected to the drive member, the drive worm gear having a large gear face and a small gear face, the worm being engaged with the large gear face, the drive gear being engaged with the small gear face.

7. The self-closing actuator according to claim 1, wherein the housing assembly comprises an upper housing, a lower housing, a driving worm shaft, and a driving gear shaft, the upper housing is covered on the lower housing, the lower housing has a driving member mounting groove for mounting the driving member therein, and the driving worm shaft and the driving gear shaft are disposed in the lower housing for mounting the worm gear assembly and the driving gear.

8. The self-closing actuator according to claim 7, wherein the housing assembly further comprises a buffer rubber and a distance bushing, one side of the lower housing is provided with a mounting hole, the buffer rubber is sleeved on the mounting hole, and the distance bushing is sleeved in the buffer rubber.

9. The self-closing actuator according to claim 7, wherein the upper housing and the lower housing are fixedly connected by self-tapping screws and their own snap-fit.

10. The self-closing actuator according to claim 7, wherein the drive worm shaft and the drive gear shaft are provided in the lower housing by insert injection molding.