Patent ID: 9544694
Date: 2017-01-10
CPC Classifications: H01L,H04R,Y10T

Claim:
1. A piezoelectric vibration module comprising a piezoelectric element, a wiring member connected to the piezoelectric element and drawn out to the outside, and an elastic plate attached to one surface of the piezoelectric element, wherein the elastic plate is made of a silicone rubber, wherein the piezoelectric element comprises a laminate in which piezoelectric body layers and electrode layers are alternately laminated, and a first and a second side electrode provided on both end faces or both side surfaces in a second direction crossing a first direction being a lamination direction of the laminate, wherein each electrode layer comprises a first electrode portion and a second electrode portion electrically separated from the first electrode portion, wherein the first side electrode comprises a first external electrode and a second external electrode which are disposed side by side in a third direction crossing the first and second directions, wherein the first electrode portion of each electrode layer is connected to the first external electrode, and wherein one end, in the second direction, of the second electrode portion of each electrode layer is connected to the second external electrode.