ELECTRONIC PARKING BRAKE ACTUATOR

The electronic parking brake actuator (100) disclosed by the present invention includes a gearbox body (10), a gearbox cover (20), a motor (30), a first gear (32) provided on the output shaft (31) of the motor (30), a primary transmission gear assembly (40), a secondary transmission gear assembly (50) and a planetary gear transmission assembly (60), wherein the central axis of the first gear (32) is parallel to the central axis of the planetary gear assembly (60) and the central axis of the secondary transmission gear assembly (50), and the central axis of the secondary transmission gear assembly (50) coincides with the central axes of the planetary gear transmission assembly (60). The present invention has the advantages of simpler structure, higher precision, higher production and transmission efficiency.