Linear power device of high power and mass density with simplified structure

摘要

Linear power device of high power and mass density with simplified structure, comprising a drive source for supplying a driving force and a drive force conversion module (6) rotatably connected to the drive source, characterized in that the drive source is an external rotor motor comprising a stator assembly having an iron core and a winding and a rotary assembly mounted on the stator assembly, wherein the driving force conversion module (6) includes a ball screw nut (4) fixedly connected to the rotating assembly and a ball screw (3) spirally tuned to the ball screw nut (4), and it is in the rotary assembly is a hollow shaft structure on which the ball screw (3) is placed.