PIEZOELECTRIC ELEMENT UNIT

摘要

PROBLEM TO BE SOLVED: To provide a piezoelectric element unit which has suitable flexural strength and is suitably used as a part of a driving device.SOLUTION: The piezoelectric element unit includes: a laminated piezoelectric element having internal electrodes laminated with dielectric layers therebetween, and a pair of external electrodes which are formed on side surfaces extending along a laminating direction and are electrically connected to the internal electrodes; a wiring part connected to the external electrodes via a solder portion formed by solidifying a solder; and a resin part which connects one end surface in the laminating direction of the laminated piezoelectric element and a mounting surface of a connection member arranged so as to face the one end surface. The resin part is continuous from the one end surface and the mounting surface to the solder portion and covers the solder portion.