CN-224218222-U - Compact type large-torque actuator

CN224218222UCN 224218222 UCN224218222 UCN 224218222UCN-224218222-U

Abstract

The utility model discloses a compact large-torque actuator, which relates to the field of automobile actuators and comprises a shell, an upper cover, a gear motor, a transmission assembly, a shaft support and a circuit board, wherein the shell and the upper cover are mutually matched, the gear motor, the shaft support and the circuit board are all arranged in the shell, the transmission assembly is arranged on the shell through the shaft support, two ends of the gear motor are respectively arranged on the shell and the upper cover, and the gear motor is electrically connected with the circuit board. According to the utility model, the belt shaft support is arranged between the upper cover and the shell, the transmission assembly is stacked up and down through the belt shaft support, the height of the transmission assembly is limited in the height range of the motor with the gear, the horizontal length and width are further compressed under the condition that the height of the whole actuator is not increased, the whole height of the motor with the gear is fully utilized, and the transmission compactness is realized. In addition, the utility model decelerates through the transmission gear set, and finally outputs the rotation force through the output gear, thereby having large execution torque.

Inventors

YE XIAOHUI
ZHU ZHENHUAN
LAI JIANBO
YU WEI

Assignees

海拉（厦门）电气有限公司

Dates

Publication Date: 20260508
Application Date: 20250328

Claims (10)

1. A compact high torque actuator, characterized by: the motor with the gear, the shaft support and the circuit board are all installed in the shell, the transmission assembly is installed in the shell through the shaft support, two ends of the motor with the gear are respectively installed on the shell and the upper cover, and the motor with the gear is electrically connected with the circuit board; The belt shaft support comprises a plurality of gear shafts, the belt shaft support is arranged on the shell, and the gear shafts are connected with the upper cover; The transmission assembly is arranged between the shell and the upper cover and is mounted on the shell through a belt shaft bracket, and comprises an output gear and a transmission gear set for reducing speed, and the belt gear motor, the transmission gear set and the output gear are sequentially connected in a rotating mode.
2. The large compact torsion actuator of claim 1, wherein the transmission gear set comprises a first duplex gear, a second duplex gear and a third duplex gear, wherein the first duplex gear and the second duplex gear are both arranged on a gear shaft, one end of the third duplex gear is movably connected with the upper cover, the other end of the third duplex gear is movably connected with the shell, and one end of the output gear is arranged on the gear shaft, and the other end of the output gear is movably connected with the shell.
3. A compact high torque actuator as defined in claim 2, wherein: the large gear and the small gear of the first duplex gear are bevel gears.
4. The large torque actuator of claim 2 wherein said output gear end is exposed to said housing and said output gear exposed end is of a profiled configuration for connection to an output shaft.
5. The large torque actuator of claim 2 wherein said output gear is connected to said housing with an external seal.
6. The large torque actuator of claim 1 wherein said axial bracket includes a downwardly extending insert plate secured to said housing.
7. The large torque actuator of claim 1 wherein said shaft support includes an ear plate extending above said circuit board, said ear plate having a gear shaft disposed thereon.
8. The large compact torsion actuator of claim 1 wherein the geared motor includes a motor stator and a motor rotor, the motor stator is secured to the housing, a motor gear is disposed at an end of the motor rotor distal from the motor stator, and the motor gear is engaged with the drive gear set after passing through the circuit board.
9. The large torque actuator of claim 8 wherein said motor stator is provided with a plurality of pin pins, said pin pins being connected to said circuit board.
10. The high torque compact actuator of claim 8 further comprising a rotor shaft, said motor rotor being rotatably mounted to said upper cover and housing by said rotor shaft.

Description

Compact type large-torque actuator Technical Field The utility model relates to the technical field of automobile actuators, in particular to a compact type large-torque actuator. Background The existing cover opening actuator of the fuel tank cover or the electric car charging cover is usually an actuator outputting rotation, and the fuel tank cover is ejected through rotation or the charging cover is opened by outputting torsion force by a specific angle. The present market actuator has small actuating torque, as shown in fig. 1 and 2, which is a common design scheme at present, wherein fig. 1 is a common oil tank cover lock actuator, and the output provides ejection force, and the output torque of the actuator is small. Fig. 2 shows a conventional electric car charging cover actuator, which is more than 2 times as large as that of fig. 1, and is bulky. In view of this, the present utility model is developed and designed to solve many drawbacks and inconveniences caused by the imperfect structural design of the existing actuators, and actively study and improve the trial work. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide a compact large-torque actuator, which improves the performance and reduces the volume. In order to achieve the above object, the solution of the present utility model is: A compact large-torque actuator comprises a shell, an upper cover, a motor with gears, a transmission assembly, a support with a shaft and a circuit board, wherein the shell and the upper cover are matched with each other, the gear motor, the shaft support and the circuit board are all arranged in the shell, the transmission assembly is arranged in the shell through the shaft support, two ends of the gear motor are respectively arranged on the shell and the upper cover, and the gear motor is electrically connected with the circuit board; The belt shaft support comprises a plurality of gear shafts, the belt shaft support is arranged on the shell, and the gear shafts are connected with the upper cover; The transmission assembly is arranged between the shell and the upper cover and is mounted on the shell through a belt shaft bracket, and comprises an output gear and a transmission gear set for reducing speed, and the belt gear motor, the transmission gear set and the output gear are sequentially connected in a rotating mode. Further, the transmission gear set comprises a first duplex gear, a second duplex gear and a third duplex gear, the first duplex gear and the second duplex gear are both arranged on a gear shaft, one end of the third duplex gear is movably connected with the upper cover, the other end of the third duplex gear is movably connected with the shell, and one end of the output gear is arranged on the gear shaft, and the other end of the output gear is movably connected with the shell. Further, the large gear and the small gear of the first duplex gear are bevel gears. Furthermore, the end part of the output gear is exposed out of the shell, and the exposed end of the output gear is of a special structure and is used for being connected with an output rotating shaft. Further, an external sealing ring is arranged at the joint of the output gear and the shell. Further, the shaft support comprises a plugboard which is arranged in a downward extending mode, and the plugboard is fixed to the shell. Further, the shaft support comprises an ear plate extending to the upper portion of the circuit board, and a gear shaft is arranged on the ear plate. Further, the geared motor comprises a motor stator and a motor rotor, the motor stator is fixed on the shell, a motor gear is arranged at one end, far away from the motor stator, of the motor rotor, and the motor gear penetrates through the circuit board and then is meshed with the transmission gear set. Further, the motor stator is provided with a plurality of pin needles, and the pin needles are connected to the circuit board. Further, the motor rotor is rotatably mounted on the upper cover and the shell through the rotor shaft. After the structure is adopted, the belt shaft bracket is arranged between the upper cover and the shell, the transmission assembly is stacked up and down through the belt shaft bracket, the height of the transmission assembly is limited in the height range of the motor with the gears, the horizontal length and width are further compressed under the condition that the height of the whole actuator is not increased, the whole height of the motor with the gears is fully utilized, and the transmission compactness is realized. In addition, the actuator of the utility model is decelerated through the transmission gear set, and finally the rotation force is output through the output gear, so that the torque is large. Drawings Fig. 1 is a schematic diagram of prior art 1. Fig. 2 is a schematic diagram of prior art 2. Fig. 3 is an exploded view of the structure of the preferred embodiment of the