Stator and ultrasonic motor using the same
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United States of America Patent
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May 14, 2013
Grant Date -
Oct 25, 2012
app pub date -
Apr 21, 2011
filing date -
Apr 21, 2011
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An ultrasonic motor includes a stator. The stator includes a seat and a driving unit. The driving unit includes a generally semi-elliptical driving mechanism formed integrally with the seat, and two spaced-apart piezoelectric actuators disposed between the seat and the driving mechanism. Each of the piezoelectric actuators has a first end abutting against the driving mechanism, and a second end opposite to the first end and abutting against the seat.
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