| 摘要 |
The present invention discloses motors using electromechanical, preferably piezoelectric, monolithic elements (30). The element (30) comprises at least two movable parts or displacement portions (32A, 32B) interconnected by a passive part (31). Each displacement section (32A, 32B) comprises at least one unimorph or preferably bimorph (33A, 33B), where the active volumes extend in parallel out from the passive part (31), and so are the electrodes 12) arranged between the electromechanical layers. The displacement portions (32A, 32B) are positioned in substantially the same plane and parallel to the body (20) to be moved. Contact portions are arranged at the central passive part (31) and at the displacement portions (32A, 32B). The central contract portion is an actuating surface (34C) and the other are attaching portions (36A, 36B) for attachment to a stator (24). The attaching portions (36A, 36B) are fixed to the stator (24) with respect of motion in a main displacement direction (X) of the body (20). The actuating surface (34C) is movable relative to the attaching portions (36A, 36B9 in two dimensions. |
