| 摘要 |
A piezoelectric actuator (3) for a liquid transporting apparatus includes a drive plate (30) having a base portion which is arranged, on an upper surface of a vibration plate (25) covering a pressure chamber (14); outside of an end portion in a longitudinal direction of the pressure chamber (14), and a drive portion (30c) which extends from the base portion (30b) along the longitudinal direction at least up to an area facing a substantially central portion of the pressure chamber (14); and a piezoelectric layer (31) arranged on the upper surface of the vibration plate (25). The drive plate (30) is fixed to the vibration plate (25) at the base portion and at the area facing the substantially central portion of the pressure chamber. By increasing an amount of deformation of the piezoelectric actuator, a liquid transporting apparatus with improved drive efficiency is provided.
|
