| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric element unit capable of certainly suppressing characteristics deterioration due to a pyroelectric effect, easily decreasing the thickness of a piezoelectric layer, and having excellent productivity.SOLUTION: A piezoelectric element unit 30 has a laminated piezoelectric element 10 having a piezoelectric layer 12, a first internal electrode 13 and a second internal electrode 14 laminated generally in parallel with each other across the piezoelectric layer 12, a first external electrode electrically connected to the first internal electrode 13; and a second external electrode 16 electrically connected to the second internal electrode 14; and resin portions 18 and 19 for coupling installation surfaces 40a and 42a of connecting members 40 and 42 connected to at least one end surfaces 10a and 10b in a laminating direction of the laminated piezoelectric element 10. The resin portions 18 and 19 include conductive particles, have electric resistance values lower than the piezoelectric layer 12, and are formed so as to contact with the first external electrode 15 and the second external electrode 16. |
