Piezoelectric motor

Details Piezoelectric motor Piezoelectric motor

H - Electricity

02

N

H02N 2/00 (2006.01) H01L 41/09 (2006.01)

Patent

CA 2075032

2075032 9210874 PCTABS00013 A piezoelectric motor comprising a stator (1) with a piezoelectric oscillator and a rotor (2), the piezoelectric oscillator having a piezoelectric element (12) with electrodes (13), and pushers (15). Each pusher is provided with a spring (16) by means of which it is arranged on a collector (18, 19) being mounted on the body coaxially with the piezoelectric element (12). Each pusher by one end keeps mechanical contact with the piezoelectric element (12) under the action of the spring and by other end abuts a surface of the rotor at an acute angle. The springs of all pushers may be orientated in one direction circumferentially or in opposite direction (for adjacent pairs of pushers). Furthermore, to allow a reverse of the motor, the pushers are divided into two groups, in each group the pushers contact the surface of the rotor in opposite directions.

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