Piezoelectric actuator and electronics device using the same

Details Piezoelectric actuator and electronics device using the same Piezoelectric actuator and electronics device using the same

2011-08-16

2011-08-16

Benson, Walter (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S317000, C310S332000, C310S364000, C381S190000

Reexamination Certificate

active

07999442

ABSTRACT:
To provide a piezoelectric actuator that is small in size, large in displacement, high in rigidity, excellent in controllability, and excellent in stability, the present invention provides a piezoelectric actuator, including: a first piezoelectric member that is bent and displaced in a thickness direction; and a second piezoelectric member that is bent and displaced in a direction opposite to the first piezoelectric member. In the piezoelectric actuator, the first piezoelectric member and the second piezoelectric member are stacked on each other in the thickness direction of the first piezoelectric member and the second piezoelectric member, and the center portion in the longitudinal direction of the first piezoelectric member and the center portion in the longitudinal direction of the second piezoelectric member, or both ends of the first piezoelectric member and both ends of the second piezoelectric member are fixed to each other.

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