| 摘要 |
PURPOSE: To provide a piezoelectric actuator in which piezoelectric elements are interconnected with electrodes by simple means without using solder. CONSTITUTION: A plurality of piezoelectric element plates are formed with an internal electrode on a surface of a piezoelectric seat and stacked, and a piezoelectric element having an electrode lead of the internal electrode on a side surface is formed, and a plurality of piezoelectric elements are connected to form a piezoelectric element pillar, and a piezoelectric element coupling electrode 46 having a thin plate form is made of a conductive material having elasticity and is adhered along a surface of the electrode lead of this piezoelectric element pillar with conductive adhesives 50. Thus, as coupling electrodes can be connected without using solder, it is possible to prevent silver easing or heat shock element damages caused by solder heat. |
