Patent ID: 6437485
Filing Date: 2002-08-20
Classification: H01L,H02N

Abstract:
An electromechanical motor, comprising:a stator part (24), a body (20) to be moved, and at least one monolithic electromechanical element (30); said monolithic electromechanical element (30) having a general elongated shape, extending substantially parallel to a main displacement direction (X) of said body (20); said monolithic electromechanical element (30) comprising a first displacement portion (32A) and a second displacement portion (32B) interconnected by a passive section (31); said first displacement portion (32A) and said second displacement portion (32B) in turn comprising a first bimorph section (33A) and a second bimorph section (33B), respectively; said first and second bimorph sections extending in an elongation direction of said monolithic electromechanical element (30) and having at least two active volumes each (14A, 14B, 16A, 16B) and electrodes (12) for activation of said active volumes (14A, 14B, 16A, 16B); said active volumes (14A, 14B, 16A, 16B) having at least one electromechanical layer each; a perpendicular to a main surface of said electromechanical layers and said electrodes, respectively, being arranged substantially perpendicular to a surface of said body, on which said monolithic electromechanical element acts; said passive section (31) having an actuating surface (34C); said first displacement portion (33A) and said second displacement portion (33B) having an attaching portion (36A, 36B) each arranged at a distance from said passive section (31); and said active volumes (14A, 14B, 16A, 16B) being activatable in at least two different combinations, whereby said actuating surface (34C) is movable with respect to said attaching portions (36A, 36B) in a two-dimensional space (X, Z).