CN101871286B - Bidirectional-movement mute electric door lock actuator - Google Patents

Abstract

The invention discloses a two-way action silent electric door lock actuator, which includes a motor, a large composite gear, a composite gear rotation pin and an output arm arranged in a housing and a cover plate; the large composite gear includes an upper gear and two lower layers Shift fork; the output arm slides along its length direction, and the output arm is provided with at least one card slot for the rotation of the lower shift fork, and the outer circle of the lower shift fork is tangent to the slot The large composite gear rotates around the composite gear rotation pin on the housing; the motor gear is connected to the upper gear of the large composite gear, and the electric actuator of the present invention realizes clockwise and counterclockwise rotation, reaching the upper The double purpose of insurance/un-insurance, and no need to return to center, thus avoiding the abnormal noise caused by return to center; this mechanism is safe and reliable, and can realize reliable performance in the life cycle of the car.

Description

Two-way Action Silent Electric Door Lock Actuator

technical field

The invention relates to an actuator for electronically controlled door locks for vehicles, in particular to a two-way action silent electric door lock actuator which can realize electric arming and unlocking, and does not need to return to center after arming and unlocking.

Background technique

The electric door lock actuator is used in conjunction with the door lock, and its operation is to realize the electric locking/unlocking action of the door lock. With the continuous improvement of automobile technology, the quality and life of the mechanism are no longer the focus of many competitors, but more and more attention is paid to ergonomics such as operating sound and operating force. The same is true for the door lock, so that the door lock is required to have a low sound when it is in motion, so as to meet people's requirements for comfort. However, the original electric actuator needs to be returned to the center in order to realize the relevant action, and the abnormal noise caused by the return to the center reduces the comfort of the overall operation.

In view of this, the inventors in this field aim at the above problems and provide a two-way silent electric door lock actuator which can realize electric arming and disarming, and does not need to return to center after arming and disarming.

Contents of the invention

The purpose of the present invention is to provide a two-way action silent electric door lock actuator, by changing the shape of the actuator arm and the mechanical transmission structure, the mechanical transmission mechanism is disengaged from the mechanical output arm after the action is realized, so that the mechanical transmission mechanism does not This sound is avoided by returning to the center, so as to achieve the same or similar structure as the existing electric actuator, and to achieve the purpose of reducing noise through the feature of not returning to the center after the electric drive.

The present invention adopts following technical scheme:

A two-way action mute electric door lock actuator of the present invention includes a motor, a large composite gear, a composite gear rotation pin and an output arm arranged in the housing and the cover plate; the large composite gear includes an upper gear and two lower dials Fork; the output arm slides along its length direction, and the output arm is provided with at least one slot for the lower shift fork to rotate and move, and the outer circle of the lower shift fork is tangent to the slot; The large composite gear rotates around the composite gear rotation pin on the housing; the motor gear is connected to the upper gear of the large composite gear.

Preferably, it also includes a small compound gear and a middle compound gear, the small compound gear includes an upper gear and a lower gear; the middle compound gear includes an upper gear and a lower gear;

The lower gear of the small compound gear meshes with the lower gear of the middle compound gear, and the upper gear of the middle compound gear meshes with the upper gear of the large compound gear.

Preferably, the motor includes a motor output shaft, a motor output gear, a first motor input terminal and a second motor input terminal;

The motor output shaft runs through the motor, one end of which is connected to the motor output gear, and the motor output gear meshes with the upper gear of the small composite gear;

The first motor input terminal and the second motor input terminal are respectively connected to positive and negative power supplies.

Preferably, the motor is arranged outside the cover plate, and the cover plate is provided with a mounting hole through which the output gear of the motor passes.

Preferably, a motor cover plate is also included, which is connected to the cover plate and covers the motor.

The electric actuator (the electric actuator also includes other functions, such as multi-function switch, emergency control switch, anti-theft switch, etc., but the patent of the present invention only describes the safety/unsafety part) includes: a motor unit, which is used to connect with the body Power connection, the motor realizes positive and negative rotation after being energized; the mechanical transmission mechanism, which is connected with the motor to realize forward and reverse rotation; the mechanical output arm, which can be connected with the mechanical lock body, to realize the action of electric locking and unlocking, and at the same time After the motor operates, it is disengaged from the mechanical transmission mechanism, which can realize the manual safety and release actions of the manual part connected to the lock body. When the motor unit is re-energized, it can mesh with the mechanical transmission mechanism again to realize the operation. .

Therefore, the electric actuator can realize the action of locking and releasing the safety after the power is turned on. After the action is realized, it can be disengaged from the motor part, and all functions can be realized without returning to the center, so there is no noise from the return of the mechanical transmission mechanism, which reduces the electric operation. the sound of.

The basic principle of the present invention: after the motor is energized, it rotates clockwise or counterclockwise to drive the spur gear to rotate. After the three-stage gear transmission, the shift fork at the lower part of the large compound gear drives the output arm to move. After the shift fork rotates to the slot of the output arm, it drives the The output arm moves, and after moving to the stroke position, the shift fork will be disengaged from the output arm, and the shift fork will continue to rotate under the drive of the motor until the shift fork touches the outer edge of the output arm to achieve a stall, and the motor will stop rotating. The outer circle of the composite gear is tangent to the output arm, so the output arm can still move, so the large composite gear does not need to return to the neutral position, and related actions can be realized.

In the existing actuators, after the motor is energized, the mechanical transmission structure must be returned to the center by the force of the spring to realize the action, so sound is unavoidable during the process of returning to the center.

Due to the adoption of the above-mentioned technology, the electric actuator of the present invention realizes clockwise and counterclockwise rotation, achieves the dual purpose of arming/unlocking, and does not need to be centered, thereby avoiding the abnormal noise caused by the centering; at the same time Since the mechanical transmission mechanism is separated from the mechanical output arm, the mechanical output arm can move with the outside without affecting the position of the mechanical transmission mechanism. The mechanism is safe and reliable, and can realize reliable service performance in the life cycle of the automobile.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the exploded schematic view of the two-way action mute electric door lock actuator of the present invention;

Fig. 2 is a three-dimensional schematic diagram of a two-way action silent electric door lock actuator of the present invention;

Fig. 3 is the perspective view of the two-way action mute electric door lock actuator of the present invention;

Fig. 4 is the perspective view of the working state of the two-way action silent electric door lock actuator when disarming in the embodiment;

Figure 5 is a perspective view of the working state of the two-way action silent electric door lock actuator when the insurance is on in the embodiment;

Fig. 6 is a schematic diagram of the kinematic relationship between the large compound gear and the conversion block when the safety is applied in the embodiment;

Fig. 7 is a schematic diagram of the locked-rotor relationship between the large compound gear and the conversion block after the safety is released in the embodiment.

reference sign

1 is the motor cover 8 is the composite gear rotation pin

2a is the first motor input terminal 9 is the large compound gear

2b is the second motor input terminal 9a1 is the lower shift fork

3 is the motor 9a2 is the lower shift fork

4 is the motor output shaft 9b is the upper gear

5 is the motor output gear 10 is the output arm

6 is the small compound gear 10a is the card slot

6a is the upper gear 11 is the housing

6b is the lower gear 12 is the cover plate

7 is the middle compound gear F is the meshing contact point

7a is the upper gear G is the locked-rotor contact point

7b is the lower gear

Detailed ways

A specific embodiment of the present invention will be introduced below through FIGS. 1 to 7 .

As shown in Figures 1 to 3, the two-way action silent electric door lock actuator of the present invention consists of a motor 3, a motor cover 1, and a small compound gear 6, a middle compound gear 7, Large composite gear 9, composite gear rotating pin 8, and output arm 10 form. The large compound gear 9 includes an upper gear 9b and two lower shift forks 9a1, 9a2; the output arm 10 slides along its length direction, and the output arm 10 is provided with at least one for the lower shift fork to rotate and move. The card slot 10a, the outer circle of the lower shift fork is tangent to the card slot 10a; the large compound gear 9 rotates around the compound gear rotation pin 8 on the housing 11; the motor 3 is gear-connected to the large The upper gear 9b of the compound gear 9.

The small compound gear 6 includes an upper gear 6a and a lower gear 6b; the middle compound gear 7 includes an upper gear 7a and a lower gear 7b; the lower gear 6b of the small compound gear 6 meshes with the lower gear of the middle compound gear 7 7b, the upper gear 7a of the middle compound gear 7 meshes with the upper gear 9b of the large compound gear 9, and the overall three-stage transmission.

The motor 3 is composed of a motor output shaft 4, a motor output gear 5, a first motor input terminal 2a and a second motor input terminal 2b, the motor output shaft 4 runs through the motor 3, and one end thereof is connected to the motor output gear 5. The motor output gear 5 meshes with the upper gear 6a of the small compound gear 6; the first motor input terminal 2a and the second motor input terminal 2b are respectively connected to positive and negative power sources. The motor 3 is arranged outside the cover plate 12, and the cover plate 12 is provided with a mounting hole, and the output gear 5 of the motor passes through the mounting hole. The motor cover 1 is connected to the cover 12 and covers the motor 3 . The whole system is mounted on the housing 11 and encapsulated by the cover plate 12 .

In actual use, when the terminals 2a and 2b are connected to the power supply of the vehicle body, the motor rotates, the motor output shaft 4 is fixedly connected to the motor output gear 5, the motor output gear 5 rotates with the motor, and the motor output gear 5 and the upper gear of the small composite gear 6 6a is the meshing of spur gears, which realizes the rotation in the opposite direction. The lower gear 6b of the small compound gear 6 meshes with the lower gear 7b of the middle compound gear 7, and the middle compound gear 7 rotates. The upper gear 7a of the middle compound gear 7 and the large compound gear 9 meshes to drive the large compound gear 9 to rotate, and the lower shift forks 9a1 and 9a2 of the large compound gear 9 are respectively meshed with the slot 10a of the output arm 10 when rotating, and the output arm 10 is moved to realize the upward and downward movement of the output arm 10 Moving, since 2a and 2b can be respectively connected to the positive pole and the negative pole of the vehicle body power supply, the output arm 10 is driven to move in the direction of disarming or arming. Large compound gear 9 continues to rotate, and large compound gear 9 disengages with output arm 10, and large compound gear 9 continues to rotate, is blocked by output arm 10 and realizes stalling. However, the movement of the mechanical output arm 10 with the outside will not affect the movement of the mechanical transmission mechanism.

As shown in Figures 4 to 7, the present invention is an electric actuator capable of realizing the two-way action of arming/unlocking. After the action is realized, it can be disengaged from the motor part, and all functions can be realized without returning to the center, so there is no return of the mechanical transmission mechanism. Noise in the engine, reducing the sound of electric operation.

As shown in Figure 5, when the diagram A (first motor input terminal 2a) is connected to the positive pole of the vehicle body power supply, and B (second motor input terminal 2b) is connected to the negative pole of the vehicle body power supply, the motor rotates clockwise, and the motor output shaft It is fixedly connected with the motor output gear 5, and the motor output gear 5 rotates clockwise with the motor, and the motor output gear 5 and the pinion 6a are spur gears meshing to realize the rotation in the opposite direction. The lower gear 6b of the small compound gear 6 is compounded with the middle The lower gear 7b of the gear 7 meshes, the middle composite gear 7 realizes clockwise rotation, the upper gear 7a of the middle composite gear 7 meshes with the large composite gear 9, and drives the large composite gear 9 to rotate counterclockwise, and the lower shift fork of the large composite gear 9 9a1 engages with the engaging groove 10a of the output arm 10 when rotating.

As shown in FIG. 6 , the meshing contact point is F, which realizes the counterclockwise rotation of the large compound gear 9 and drives the output arm 10 to move in the direction of upward safety. The large composite gear 9 continues to rotate counterclockwise, the large composite gear 9 is disengaged from the output arm 10, the large composite gear 9 continues to rotate, and is blocked by the output arm 10 to realize stalling, and the contact point of the stalling is G. Thereby realize the action of going up insurance and all parts in this mechanism do not need to return, just can make mechanical output arm 10 and large composite gear 9 and gear mechanism disengage, because the outside of large composite gear 9 (locked with output arm 10) With a circular arc structure, the output arm 10 can move freely under the action of external force during manual operation without affecting the internal structure.

As shown in Figures 4 and 7, when A (first motor input terminal 2a) is connected to the negative pole of the vehicle body power supply, and B (second motor input terminal 2b) is connected to the positive pole of the vehicle body power supply, the motor rotates counterclockwise, and the motor output shaft It is fixedly connected with the motor output gear 5, and the motor output gear 5 rotates counterclockwise with the motor. The motor output gear 5 and the upper gear 6a of the small compound gear 6 are spur gear meshed to realize the rotation in the opposite direction. The lower layer of the small compound gear 6 The gear 6b meshes with the lower gear 7b of the middle compound gear 7, and the middle compound gear 7 rotates counterclockwise. The upper gear 7a of the middle compound gear 7 meshes with the large compound gear 9, which drives the gear 9 to rotate clockwise. When the lower shift fork 9a2 is rotated, it engages with the slot 10a of the output arm 10 to realize the movement of the output arm 10 in the direction of unlocking. The large composite gear 9 continues to rotate clockwise, the lower shift fork 9a2 slides out of the draw-in groove 10a, the large composite gear 9 is disengaged from the output arm 10, the large composite gear 9 continues to rotate, and is blocked by the output arm 10 to realize stalling. In this way, the release action is realized, and all parts in the mechanism do not need to be returned, so that the mechanical output arm 10 can be disengaged from the gear mechanism, and can move freely with the action of the outside world without affecting the internal structure.

In summary, due to the adoption of the above-mentioned technology, the electric actuator of the present invention realizes clockwise and counterclockwise rotation, achieves the dual purpose of locking/unlocking, and does not need to return to the center, thus avoiding the trouble caused by returning to the center. Abnormal sound; at the same time, because the mechanical transmission mechanism is disengaged from the mechanical output arm, the mechanical output arm can move with the outside world without affecting the position of the mechanical transmission mechanism. The mechanism is safe and reliable, and can realize reliable service performance in the life cycle of the automobile.

The above-described embodiments are only used to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and the scope of the present invention cannot be limited only by this embodiment. The scope of the patent, that is, all equivalent changes or modifications made according to the spirit disclosed in the present invention still fall within the scope of the patent of the present invention.

Claims (4)

1. bidirectional-movement mute electric door lock actuator is characterized in that: comprise motor (3) and be arranged on large compound gear (9), compound gear rotating dog (8) and output arm (10) in housing (11) and the cover plate (12);

Described large compound gear (9) comprises upper strata gear (9b) and two lower floor's shift forks;

Described output arm (10) slides along its length direction, and described output arm (10) is provided with the draw-in groove (10a) that the shift fork rotation of the described lower floor of at least one confession is stirred, and the cylindrical of described lower floor shift fork and described draw-in groove (10a) are tangent;

Compound gear rotating dog (8) rotation of described large compound gear (9) on housing (11);

Described motor (3) gear drive connects the upper strata gear (9b) of described large compound gear (9).

2. bidirectional-movement mute electric door lock actuator according to claim 1, it is characterized in that: also comprise little compound gear (6) and middle compound gear (7), described little compound gear (6) comprises upper strata gear (6a) and lower floor's gear (6b); Described middle compound gear (7) comprises upper strata gear (7a) and lower floor's gear (7b);

Lower floor's gear (7b) of lower floor's gear (6b) described middle compound gear of engagement (7) of described little compound gear (6), the upper strata gear (9b) of upper strata gear (7a) the described large compound gear of engagement (9) of described middle compound gear (7); Described motor (3) comprises motor output shaft (4), motor output gear (5), the first input end of motor (2a) and the second input end of motor (2b);

Described motor output shaft (4) runs through described motor (3), and the one end connects described motor output gear (5), the upper strata gear (6a) of described motor output gear (5) the described little compound gear of engagement (6);

Described the first input end of motor (2a) is connected respectively positive-negative power with the second input end of motor (2b).

3. bidirectional-movement mute electric door lock actuator according to claim 1, it is characterized in that: described motor (3) is arranged on described cover plate (12) outside, described cover plate (12) is provided with installing hole, and described motor output gear (5) passes described installing hole.

4. bidirectional-movement mute electric door lock actuator according to claim 3 is characterized in that: also comprises motor cover plate (1), connects described cover plate (12), and the described motor of cover cap (3).

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