摘要 |
PROBLEM TO BE SOLVED: To provide a laminated piezoelectric element that is equipped with external electrodes and internal electrodes, which are hardly disconnected from each other, and superior in durability even when it is made to operate continuously in a high electric field under a high pressure for a long time, and to provide a spray device. SOLUTION: The laminated piezoelectric element is equipped with a columnar laminate 1a composed of a piezoelectric materials 1 and the internal electrodes 2 which are alternately laminated and the external electrodes 4 which are provided on the sides of the columnar laminate 1a. A projecting conductive terminals 5 projecting from the side of the columnar laminate 1a is provided to every other end of the internal electrodes 2, the external electrode 4 formed of a plate-like conductive member is joined to the tips of the projecting conductive terminals 5, the external electrode 4 is divided into a plurality of parts in the lamination direction of the columnar laminate 1a, and the divided external electrodes 4a are connected together with a conductive auxiliary member 7. COPYRIGHT: (C)2004,JPO
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