High acceleration actuator

摘要

Embodiments of the present disclosure include an actuator for steering mirrors with low magnetic hysteresis losses at high frequencies, with a fast step response, and without excessive heating of the steering mirror. Various embodiments of the actuator include two stators (a left stator and a right stator or an inner stator and an outer stator) and a rotor positioned between the stators. Each stator has a core assembly with one or more cores, two or more legs, and two or more faces positioned proximate to the rotor. The two or more legs are separated from one another by portions of the one or more coils. The rotor includes a core and a plurality of magnets, where each magnet has a face positioned proximate to the faces of one core assembly.

主权项

1. An actuator, comprising:
a rotor structure, the rotor structure including a rotor core and a plurality of magnets; and a first core assembly, the first core assembly including:
a first laminated core element, the first laminated core element including a first face portion and a third face portion, wherein the first face portion and the third face portion of the first laminated core element are adjacent a first side of the rotor structure;a second laminated core element, the second laminated core element including a first face portion and a second face portion, wherein the first face portion and the second face portion of the second laminated core element are adjacent the first side of the rotor structure; anda third laminated core element, the third laminated core element including a second face portion and a third face portion, wherein the second face portion and the third face portion of the third laminated core element are adjacent the first side of the rotor structure,
wherein the first face portion of the first laminated core element is adjacent to the first face portion of the second laminated core element to form a first face of the first core assembly,wherein the third face portion of the first laminated core element is adjacent to the third face portion of the third laminated core element to form a third face of the first core assembly, andwherein the second face portion of the second laminated core element is adjacent to the second face portion of the third laminated core element to form a second face of the first core assembly.