Novel actuator for automobile door handle

Abstract

The utility model belongs to the technical field of automobile parts, and relates to a novel actuator for an automobile door handle, which comprises an upper cover, a lower cover, a motor, a worm, a worm gear, a screw rod gear, a push rod, a shaft sleeve I, a shaft sleeve II, a sealing ring, a magnet, a circuit board and a terminal. The worm is fixed to an output shaft of the motor and meshed with the first gear end of the worm gear. The worm end of the worm gear is meshed with the second gear end of the lead screw gear, and the lead screw end of the lead screw gear is meshed with the push rod. The first shaft sleeve is assembled on a motor output shaft. The shaft sleeve II is assembled at the optical axis of the worm gear and the screw rod gear; the sealing ring and the push rod are matched and assembled in a shell formed by the upper cover and the lower cover; the magnet is fixed on a motor output shaft; the terminal is injection-molded on the lower cover; the circuit board and the terminals are assembled on the lower cover in a matched mode. The actuator is a mechanism which is driven by a motor, converts circular motion of the motor into linear motion of a push rod and outputs an electric signal at the same time. The device is light in structure, large in torque, low in noise, stable in performance and capable of being used on most vehicle types.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, and in particular relates to a new type of actuator for an automobile door handle. Background Art

[0002] With the rapid development of the automobile industry, the requirements for the appearance and functions of automobile parts will become higher and higher. Car door handles are no longer limited to opening and closing car doors, that is, the functions of handles are more diversified. The sense of ritual and technology of opening car door handles are very popular among consumers, and actuators that can realize the automatic opening function of door handles have emerged. However, most existing car door handle actuators have many assembly parts, complex structures, poor stability, high noise, and easy damage during the manufacturing process, so the cost is relatively high. Utility Model Content

[0003] In order to solve the problems of the above-mentioned actuator, the utility model provides a new type of actuator for a car door handle.

[0004] The technical solution of the utility model is to provide a new type of actuator for automobile door handles, including an upper cover, a lower cover, a motor, a worm, a worm gear, a lead screw gear, a push rod, a sleeve 1, a sleeve 2, a sealing ring, a magnet, a circuit board and a terminal. The worm is fixedly mounted on the motor output shaft and meshes with the gear end 1 of the worm gear; the sleeve 1 is mounted on the motor output shaft to achieve the stability of the motor rotation; through the meshing of the worm with the gear end 1 of the worm gear, the rotation of the motor output shaft is converted into the rotation of the worm gear, thereby achieving a first-stage reduction. The gear end 1 and the worm end of the worm gear are fixed together and have the same rotation speed; the sleeve 2 is mounted on the optical axis of the worm gear and the lead screw gear to achieve the stability of the rotation of the worm gear and the lead screw gear; through the meshing of the worm end of the worm gear with the gear end 2 of the lead screw gear, the rotation of the worm gear is converted into the rotation of the lead screw gear, thereby achieving a second-stage reduction. The second gear end of the screw gear and the screw end are fixed together, with the same rotation speed; the screw end of the screw gear meshes with the push rod, and the rotation of the screw gear is converted into the linear motion of the push rod; the sealing ring and the push rod are assembled in the housing composed of the upper cover and the lower cover, and have the functions of sealing and guiding; the magnet is fixed on the motor output shaft, with the same rotation speed as the motor; the terminal is injection molded on the lower cover; the circuit board and the terminal are assembled on the lower cover, and generate electrical signals by induction with the rotating magnet. Finally, the actuator's stable linear reciprocating drive function and output electrical signal function are realized.

[0005] The utility model actuator has the advantages that the rotating parts of the actuator are assembled in the lower cover, and the upper cover is pressed together to ensure the ease of assembly of the parts and the stability of the matching, while also reducing the noise during the operation of the actuator and greatly improving the overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a three-dimensional schematic diagram of the door handle actuator of the utility model.

[0007] Figure 2 It is a three-dimensional schematic diagram of the internal parts of the door handle actuator of the utility model.

[0008] Figure 3 It is a schematic diagram of the worm gear of the door handle actuator of the utility model.

[0009] Figure 4 It is a schematic diagram of the screw gear of the door handle actuator of the utility model.

[0010] In the figure, 1. upper cover, 2. lower cover, 3. motor, 4. worm, 5. worm gear, 6. lead screw gear, 7. push rod, 8. sleeve 1, 9. sleeve 2, 10. sealing ring, 11. magnet, 12. circuit board, 13. terminal, 14. gear end 1, 15. worm end, 16. gear end 2, 17. lead screw end. DETAILED DESCRIPTION

[0011] The utility model is further described below in conjunction with the accompanying drawings:

[0012] In order to solve the above technical problems, the technical solution of the utility model is to provide a new type of automobile door handle actuator, including an upper cover 1, a lower cover 2, a motor 3, a worm 4, a worm gear 5, a screw gear 6, a push rod 7, a sleeve 1 8, a sleeve 2 9, a sealing ring 10, a magnet 11, a circuit board 12 and a terminal 13. The worm 4 is fixedly mounted on the output shaft of the motor 3 and meshes with the gear end 14 of the worm gear 5; the worm end 15 of the worm gear 5 meshes with the gear end 2 16 of the screw gear 6; the screw end 17 of the screw gear 6 meshes with the push rod 7; the shaft sleeve 1 8 is mounted on the output shaft of the motor 3; the shaft sleeve 2 9 is mounted at the optical axes at both ends of the worm gear 5 and the screw gear 6; the sealing ring 10 is assembled with the push rod 7 inside the housing composed of the upper cover 1 and the lower cover 2, and has the functions of sealing and guiding; the magnet 11 is fixed on the output shaft of the motor 3; the terminal 13 is injection molded on the lower cover 2; the circuit board 12 is assembled with the terminal on the lower cover 2. The actuator of the utility model is driven by the motor 3, which converts the circular motion of the motor 3 into the linear motion of the push rod 7 and outputs the electrical signal at the same time.

[0013] The worm 4 is fixedly mounted on the output shaft of the motor 3 and meshes with the gear end 14 of the worm gear 5; the shaft sleeve 8 is mounted on the output shaft of the motor 3 to achieve the stability of the rotation of the motor 3; through the meshing of the worm 4 with the gear end 14 of the worm gear 5, the rotation of the motor output shaft is converted into the rotation of the worm gear 5, thereby achieving a first-stage reduction.

[0014] The gear end 14 and the worm end 15 of the worm gear 5 are fixed together and have the same rotation speed; the shaft sleeve 2 9 is assembled at the optical axes at both ends of the worm gear 5 and the lead screw gear 6 to achieve the stability of the rotation of the worm gear 5 and the lead screw gear 6; through the meshing of the worm end 15 of the worm gear 5 and the gear end 2 16 of the lead screw gear 6, the rotation of the worm gear 5 is converted into the rotation of the lead screw gear 6, realizing secondary reduction.

[0015] The gear end 2 16 and the screw end 17 of the screw gear 6 are fixed together and have the same rotation speed; through the meshing of the screw end 17 of the screw gear 6 with the push rod 7, the rotation of the screw gear 6 is converted into the linear motion of the push rod 7, thereby realizing the linear reciprocating drive function of the actuator.

[0016] The magnet 11 is fixed to the output shaft of the motor 3 and rotates at the same speed as the motor output shaft; the circuit board 12 is assembled on the lower cover 2 in cooperation with the terminal, and generates an electrical signal by induction with the rotating magnet to realize the function of the actuator outputting an electrical signal.

[0017] The above is only an explanation of the preferred embodiments of the utility model, which cannot be understood as a limitation of the claims. Any equivalent structure or equivalent process transformation made by using the contents of the utility model specification and drawings is included in the patent protection scope of the utility model.

Claims

1. A new type of actuator for automobile door handle, characterized by: The invention comprises an upper cover (1), a lower cover (2), a motor (3), a worm (4), a worm gear (5), a lead screw gear (6), a push rod (7), a shaft sleeve (8), a shaft sleeve (9), a sealing ring (10), a magnet (11), a circuit board (12) and a terminal (13); the worm (4) is fixedly assembled on the output shaft of the motor (3) and meshes with the gear end (14) of the worm gear (5); the worm end (15) of the worm gear (5) meshes with the gear end (16) of the lead screw gear (6); the lead screw end (17) of the lead screw gear (6) meshes with the push rod (7); the shaft sleeve (8) is assembled The output shaft of the motor (3); the second sleeve (9) is mounted at the optical axes at both ends of the worm gear (5) and the lead screw gear (6); the sealing ring (10) and the push rod (7) are assembled in cooperation with each other inside the housing composed of the upper cover (1) and the lower cover (2), and have the functions of sealing and guiding; the magnet (11) is fixed on the output shaft of the motor (3); the terminal (13) is injection-molded on the lower cover; the circuit board (12) and the terminal are assembled in cooperation with each other on the lower cover (2); the actuator is a linear reciprocating drive mechanism driven by the motor (3) to convert the circular motion of the motor (3) into the linear motion of the push rod (7), and output electrical signals at the same time.

2. The novel actuator for automobile door handle according to claim 1 is characterized in that: The shaft sleeve 1 (8) is mounted on the output shaft of the motor (3) to achieve stability in the rotation of the motor (3); the rotation of the output shaft of the motor (3) is converted into the rotation of the worm gear (5) through the meshing of the worm (4) and the gear end 1 (14) of the worm gear (5), thereby achieving a first-stage reduction.

3. The novel actuator for automobile door handle according to claim 1 is characterized in that: The gear end 1 (14) and the worm end (15) of the worm gear (5) are fixed together and have the same rotation speed; the shaft sleeve 2 (9) is mounted on the optical axes at both ends of the worm gear (5) and the lead screw gear (6) to achieve the stability of the rotation of the worm gear (5) and the lead screw gear (6); through the meshing of the worm end (15) of the worm gear (5) and the gear end 2 (16) of the lead screw gear (6), the rotation of the worm gear (5) is converted into the rotation of the lead screw gear (6), thereby achieving a two-stage reduction.

4. The novel actuator for automobile door handle according to claim 1 is characterized in that: The second gear end (16) and the screw end (17) of the screw gear (6) are fixed together and have the same rotation speed; through the meshing of the screw end (17) of the screw gear (6) and the push rod (7), the rotation of the screw gear (6) is converted into the linear motion of the push rod (7), thereby realizing the linear reciprocating drive function of the actuator.

5. The novel actuator for automobile door handle according to claim 1 is characterized in that: The magnet (11) is fixed to the output shaft of the motor (3) and rotates at the same speed as the output shaft of the motor; the circuit board (12) is assembled on the lower cover (2) in cooperation with the terminal, and generates an electrical signal induction with the rotating magnet to realize the function of the actuator outputting the electrical signal.

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