Actuator

Abstract

The utility model provides an actuator. An upper cover is connected with a base to form an inner cavity; the mounting support plate is connected to the base and divides the inner cavity into a first cavity and a second cavity; a motor containing cavity is formed in the upper cover, and the motor is installed in the motor containing cavity. The circuit board is connected to the mounting support plate and located in the first cavity; a rotating shaft of the motor penetrates through the mounting support plate and is connected with the driving gear; one end of the gear shaft is connected with the mounting support plate, and the other end is connected with the base; the duplicate gear sleeves the gear shaft and can rotate around the gear shaft; the duplicate gear and the driven gear are arranged in the second cavity; the driven gear comprises a gear part and a rotary cylinder; the driving gear is meshed with a first large gear on the duplicate gear, and a first small gear on the duplicate gear is meshed with the gear part of the driven gear; one end of a rotary column body of the driven gear is assembled on the mounting support plate through a first bearing; the actuator is reasonable in structural layout, long in service life and flexible in operation.

Description

Technical Field

[0001] This utility model relates to an automotive component, and more particularly to an actuator. Background Technology

[0002] Various electronic actuators are installed in automobiles to enable a variety of control and drive functions.

[0003] Actuators have a wide range of applications in automobiles, such as gear shifting, switching between electric and gasoline modes in hybrid vehicles, and switching between four-wheel drive and two-wheel drive modes in four-wheel drive vehicles.

[0004] The internal structural design of the actuator is a key factor in actuator manufacturing. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides an actuator with a compact and rationally arranged internal structure, long service life, and flexible operation. To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model embodiment provides an actuator, including an upper cover, a base, a mounting plate, a motor, a circuit board, a drive gear, a gear shaft, a double gear, a driven gear, a first bearing, an output shaft, a second bearing, a socket, terminal pins, a first connecting pin, and a second connecting pin;

[0007] The upper cover is connected to the base and forms an internal cavity;

[0008] The mounting plate is connected to the base, dividing the internal chamber into a first chamber and a second chamber; the first chamber is located on the side of the mounting plate facing the upper cover, and the second chamber is located on the other side of the mounting plate facing the base;

[0009] The upper cover has a motor housing cavity, and the motor is installed inside the motor housing cavity; the circuit board is connected to the mounting plate and located in the first cavity; the motor shaft passes through the mounting plate and is connected to the drive gear; one end of the gear shaft is connected to the mounting plate, and the other end is connected to the base; a double gear is sleeved on the gear shaft and can rotate around the gear shaft; both the double gear and the driven gear are located in the second cavity; the driven gear includes a gear part and a rotating cylinder; the drive gear meshes with the first large gear on the double gear, and the first small gear on the double gear meshes with the gear part of the driven gear; one end of the rotating cylinder of the driven gear is mounted on the mounting plate through a first bearing; the other end of the rotating cylinder of the driven gear is connected to one end of the output shaft; the output shaft is mounted on the base through a second bearing; the other end of the output shaft extends out of the base;

[0010] A socket is provided on the base; the socket is provided with terminal pins; the terminal pins are connected to the circuit board through a first connecting pin; the circuit board is connected to the motor through a second connecting pin.

[0011] Furthermore, the motor is fixed to the mounting plate via a motor flange.

[0012] Furthermore, the driving gear includes a smooth section and a gear section; the smooth section of the driving gear is fitted to the mounting plate via a shaft sleeve; the gear section of the driving gear meshes with the first large gear on the double gear.

[0013] Furthermore, the gear portion of the driven gear is a sector gear portion.

[0014] Furthermore, a magnetic component is installed on one end of the driven gear's rotating cylinder, and a Hall effect sensor element that cooperates with the magnetic component is provided on the circuit board.

[0015] Furthermore, a sealing ring is provided between the output shaft and the base.

[0016] Furthermore, the other end of the output shaft is connected to an output gear.

[0017] Furthermore, the output shaft is provided with a positioning step, a positioning ring is sleeved on the output shaft and locked at the positioning step, and the output gear is connected to the output shaft and abuts against the positioning ring.

[0018] Furthermore, the base, socket, terminal pin, first connecting pin, and second connecting pin are integrally constructed by insert injection molding.

[0019] Furthermore, a first rubber pad is provided between the circuit board and the top cover; a second rubber pad is provided around the output shaft on the outside of the base.

[0020] The beneficial effects of the technical solution provided by this utility model embodiment are: the actuator proposed in this application has a compact internal structure, reasonable layout, flexible operation, long service life, and large output torque, and can be used for various drive applications such as gear switching. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the actuator structure in an embodiment of the present utility model. Detailed Implementation

[0022] 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.

[0023] like Figure 1As shown in the figure, an actuator proposed in this utility model embodiment includes an upper cover 1, a base 2, a mounting plate 3, a motor 4, a circuit board 5, a driving gear 8, a gear shaft 9, a double gear 10, a driven gear 11, a first bearing 12, an output shaft 14, a second bearing 15, a socket 19, a terminal pin 20, a first connecting pin 21, and a second connecting pin 22.

[0024] The upper cover 1 is connected to the base 2 and forms an internal cavity;

[0025] The mounting plate 3 is connected to the base 2, dividing the internal chamber into a first chamber and a second chamber; the first chamber is located on the side of the mounting plate 3 facing the upper cover 1, and the second chamber is located on the other side of the mounting plate 3 facing the base 2.

[0026] The upper cover 1 has a motor housing cavity, and the motor 4 is installed in the motor housing cavity; the circuit board 5 is connected to the mounting plate 3 and located in the first cavity; the rotating shaft of the motor 4 passes through the mounting plate 3 and is connected to the driving gear 8; one end of the gear shaft 9 is connected to the mounting plate 3, and the other end is connected to the base 2; the double gear 10 is sleeved on the gear shaft 9 and can rotate around the gear shaft 9; both the double gear 10 and the driven gear 11 are located in the second cavity; the driven gear 11 includes a gear part and a rotating cylinder; the driving gear 8 meshes with the first large gear 1001 on the double gear 10, and the first small gear 1002 on the double gear 10 meshes with the gear part of the driven gear 11; one end of the rotating cylinder of the driven gear 11 is mounted on the mounting plate 3 through the first bearing 12; the other end of the rotating cylinder of the driven gear 11 is connected to one end of the output shaft 14; the output shaft 14 is mounted on the base 2 through the second bearing 15; the other end of the output shaft 14 extends out of the base 2.

[0027] A socket 19 is provided on the base 2; a terminal pin 20 is provided in the socket 19; the terminal pin 20 is connected to the circuit board 5 through a first connecting pin 21; the circuit board 5 is connected to the motor 4 through a second connecting pin 22.

[0028] This application incorporates a mounting plate 3 between the top cover 1 and the base 2, preventing interference between the gear set (driving gear 8, double gear 10, driven gear 11) and the circuit board 5. The mounting plate 3 also enhances the connection strength and stability of the internal components, ensuring the actuator's long-term usability. After the driven gear 11 connects to the output shaft 14, both ends are mounted to the mounting plate 3 via a first bearing 12 and to the base 2 via a second bearing 15, ensuring smooth operation of the output shaft 14, which requires output torque, without jamming. This application utilizes a two-stage gear reduction structure where the driving gear 8 meshes with the first large gear 1001 on the double gear 10, and the first small gear 1002 on the double gear 10 meshes with the gear section of the driven gear 11, thereby increasing the output torque of the output shaft 14.

[0029] More preferably, the motor 4 is fixed to the mounting plate 3 by the motor flange 7; this can prevent the motor 4 from moving longitudinally within the motor housing cavity of the upper cover 1; thus ensuring that the motor 4 is securely fixed and operates smoothly.

[0030] More preferably, the drive gear 8 includes a smooth section and a gear section; the smooth section of the drive gear 8 is assembled to the mounting plate 3 via a bushing 6, which enables the drive gear 8 to rotate flexibly and extends its service life; the gear section of the drive gear 8 meshes with the first large gear 1001 on the double gear 10.

[0031] More preferably, the gear portion of the driven gear 11 is a sector gear portion, since the driven gear 11 does not need to rotate 360 ​​degrees, the sector gear portion can reduce weight.

[0032] More preferably, a magnetic element 13 is installed on one end of the rotating cylinder of the driven gear 11, and a Hall effect sensor element that cooperates with the magnetic element 13 is provided on the circuit board 5; through the Hall effect sensor element and the magnetic element 13, the circuit board 5 can monitor the position and rotation angle of the output shaft 14.

[0033] More preferably, a sealing ring 16 is provided between the output shaft 14 and the base 2; the sealing ring 16 can prevent external moisture from entering the internal cavity.

[0034] More preferably, the other end of the output shaft 14 is connected to an output gear 18; when the actuator cooperates with the gearbox, the output gear 18 is used to control the gearbox to shift gears.

[0035] More preferably, the output shaft 14 is provided with a positioning step 1601, a positioning ring 17 is sleeved on the output shaft 14 and locked at the positioning step 1601, and the output gear 18 is connected to the output shaft 14 and abuts against the positioning ring 17. The positioning step 1601 and the positioning ring 17 provide a definite installation position for the output gear 18 on the output shaft 14.

[0036] More preferably, the base 2, socket 19, terminal pin 20, first connecting pin 21, and second connecting pin 22 are integrally constructed by insert injection molding.

[0037] More preferably, a first rubber pad 23 is provided between the circuit board 5 and the top cover 1; the first rubber pad 23 plays a buffering role on the circuit board 5, reducing the vibration of the circuit board 5 when the motor 4 is running.

[0038] More preferably, a second rubber pad 24 is provided around the output shaft 14 on the outside of the base 2; the second rubber pad 24 can act as a buffer when the actuator is connected to a counterpart (e.g., a gearbox).

[0039] The actuator proposed in this application can be applied to vehicle gear shifting, hybrid vehicle oil-electric switching, and four-wheel drive / two-wheel drive mode switching in four-wheel drive vehicles.

[0040] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An actuator, characterized in that, Includes a top cover (1), a base (2), a mounting plate (3), a motor (4), a circuit board (5), a drive gear (8), a gear shaft (9), a double gear (10), a driven gear (11), a first bearing (12), an output shaft (14), a second bearing (15), a socket (19), a terminal pin (20), a first connecting pin (21), and a second connecting pin (22); The upper cover (1) is connected to the base (2) and forms an internal cavity; The mounting plate (3) is connected to the base (2) and divides the internal chamber into a first chamber and a second chamber; the first chamber is located on the side of the mounting plate (3) facing the upper cover (1) and the second chamber is located on the other side of the mounting plate (3) facing the base (2); The upper cover (1) is provided with a motor housing cavity, and the motor (4) is installed in the motor housing cavity; the circuit board (5) is connected to the mounting support plate (3) and located in the first chamber; the rotating shaft of the motor (4) passes through the mounting support plate (3) and is connected to the driving gear (8); one end of the gear shaft (9) is connected to the mounting support plate (3), and the other end is connected to the base (2); the double gear (10) is sleeved on the gear shaft (9) and can rotate around the gear shaft (9); the double gear (10) and the driven gear (11) are both arranged in the second chamber; the driven gear (11) includes Gear section and rotating cylinder; the driving gear (8) meshes with the first large gear (1001) on the double gear (10), and the first small gear (1002) on the double gear (10) meshes with the gear section of the driven gear (11); one end of the rotating cylinder of the driven gear (11) is mounted on the mounting plate (3) through the first bearing (12); the other end of the rotating cylinder of the driven gear (11) is connected to one end of the output shaft (14); the output shaft (14) is mounted on the base (2) through the second bearing (15); the other end of the output shaft (14) extends out of the base (2); A socket (19) is provided on the base (2); a terminal pin (20) is provided in the socket (19); the terminal pin (20) is connected to the circuit board (5) through a first connecting pin (21); the circuit board (5) is connected to the motor (4) through a second connecting pin (22).

2. The actuator as described in claim 1, characterized in that, The motor (4) is fixed to the mounting plate (3) via the motor flange (7).

3. The actuator as described in claim 1, characterized in that, The driving gear (8) includes a smooth section and a gear section; the smooth section of the driving gear (8) is mounted on the mounting plate (3) via a bushing (6); the gear section of the driving gear (8) meshes with the first large gear (1001) on the double gear (10).

4. The actuator as described in claim 1, characterized in that, The driven gear (11) has a sector gear section.

5. The actuator as claimed in claim 1, characterized in that, A magnetic component (13) is installed on one end of the rotating cylinder of the driven gear (11), and a Hall effect sensor element that cooperates with the magnetic component (13) is provided on the circuit board (5).

6. The actuator as claimed in claim 1, characterized in that, A sealing ring (16) is provided between the output shaft (14) and the base (2).

7. The actuator as claimed in claim 1, characterized in that, The other end of the output shaft (14) is connected to an output gear (18).

8. The actuator as claimed in claim 7, characterized in that, The output shaft (14) is provided with a positioning step (1601), the positioning ring (17) is sleeved on the output shaft (14) and is locked at the positioning step (1601), and the output gear (18) is connected to the output shaft (14) and abuts against the positioning ring (17).

9. The actuator as claimed in claim 1, characterized in that, The base (2), socket (19), terminal pin (20), first connecting pin (21) and second connecting pin (22) are integrally constructed by insert injection molding.

10. The actuator as claimed in claim 1, characterized in that, A first rubber pad (23) is provided between the circuit board (5) and the top cover (1); a second rubber pad (24) is provided around the output shaft (14) on the outside of the base (2).

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