PIEZOELECTRIC DRIVE DEVICE AND PIEZOELECTRIC DRIVE SYSTEM HAVING SAME
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United States of America
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Issued Date -
Oct 31, 2024
app pub date -
Oct 9, 2021
filing date -
Oct 9, 2021
priority date (Note) -
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Abstract
A piezoelectric drive device, includes: a case defining a cavity and having a closed end; a holder arranged in the cavity, and having a first end coupled to the closed end of the case, and a second end facing towards the open end of the case, the second end of the holder having a recess in an end face thereof, the recess including first and side walls and a bottom connected therebetween, the first and second side walls obliquely extending outwards from the bottom; first and second piezoelectric elements arranged on the first and second side walls of the recess, respectively; and first and second actuating members fixed to the first and second piezoelectric elements, respectively, and facing towards each other.
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