Patent ID: 8441170
Filing Date: 2013-05-14
Classification: H02N

Abstract:
1. A stator adapted to be used in an ultrasonic motor, said stator comprising: a seat having a mounting portion extending along a longitudinal direction, and a positioning portion extending outwardly from a middle portion of said mounting portion in a traverse direction perpendicular to the longitudinal direction; and a driving unit including a generally semi-elliptical driving mechanism formed integrally with said seat, and two spaced-apart piezoelectric actuators disposed between said seat and said driving mechanism, each of said piezoelectric actuators having a first end abutting against said driving mechanism, and a second end opposite to said first end and abutting against said seat, said driving mechanism having two ends connected integrally to said mounting portion, said second ends of said piezoelectric actuators abutting respectively against two opposite sides of said positioning portion of said seat.