| 摘要 |
A piezo actuator according to the present invention comprises a piezo which is contracted or expanded by applied voltage; a diaphragm to which the piezo is attached and which generates vibration by the bending motion according to the expansion and contraction of the piezo; a weight which is connected to the diaphragm to amplify the vibration generated by the diaphragm; a bracket which is arranged at least partially on opposite sides of the diaphragm; a case which is disposed opposite the bracket and which surrounds at least a portion of the piezo, the diaphragm, and the weight; a support member which supports the diaphragm; and a buffered member which is disposed at a part where the case or the bracket is connected to the support member and which is disposed between the support member and the bracket or between the support member and the diaphragm. |
