Thin-plate-type rotating ultrasonic motor
An ultrasonic motor and thin plate technology, applied in the direction of generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve the disadvantages of miniaturization, miniaturization, limited application range, and unfavorable design and processing problems, to achieve the effect of compact structure and simple driving circuit
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[0013] In the following, the working principle and specific implementation of the thin-plate double traveling wave type rotary ultrasonic motor are described by taking the sector-shaped silver-plated electrode 8 as an example of 8.
[0014] Such as figure 1 , figure 2 As shown, the thin-plate dual traveling wave type rotary ultrasonic motor of the present invention is mainly composed of a stator assembly, a rotor and a bracket assembly. The stator assembly adopts a composite structure of an annular metal sheet 6 and an annular piezoelectric ceramic sheet 2. The piezoelectric ceramic ring is unidirectionally polarized and has eight uniformly divided sector-shaped silver-plated electrodes 8; the rotor 7 and the base 5 are positioned by the bearing 4; the rubber spring 1 is pressed between the stator and the base 5 to fix the stator and provide a fixed , The pre-pressure between the rotors. The thin plate type double traveling wave type rotary ultrasonic motor of the present inven...
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