Ultrasonic motor with stabilized stator vibration
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United States of America Patent
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-
Aug 8, 2023
Grant Date -
Aug 18, 2022
app pub date -
Apr 29, 2022
filing date -
Nov 15, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
An ultrasonic motor is provided that includes a stator including first and second piezoelectric elements provided on a first main surface of a vibrator having a plate shape, a rotor in direct or indirect contact with a second main surface of the vibrator, and a wiring member connected to the first and second piezoelectric elements. Moreover, the wiring member includes first and second connection members connected to the first and second piezoelectric elements, a central wiring portion connected to the first and second connection members and provided in a region including a center of an axial direction, and an extended wiring portion connected to the central wiring portion. The central wiring portion is fixed to the first main surface of the vibrator and the extended wiring portion is lifted from the first main surface of the vibrator.
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