Title:
圧電アクチュエータ
Document Type and Number:
Japanese Patent JP6927848
Kind Code:
B2
Abstract:
To provide a piezoelectric actuator that prevents the occurrence of cracks.SOLUTION: A piezoelectric actuator 10 of the present disclosure comprises: a laminated piezoelectric element 1; and a metal case 2 that accommodates the laminated piezoelectric element 1 such that an upper end and a lower end of the laminated piezoelectric element 1 are in contact with an inner wall. The lower end of the laminated piezoelectric element 1 is joined to the metal case 2 with a joint material, and the joint material 3 is not provided at a portion farthest from the center of gravity of a figure at least at the lower end of the laminated piezoelectric element 1 when viewed from a lamination direction.SELECTED DRAWING: Figure 2
Inventors:
Yasuhiro Asakura
Application Number:
JP2017206263A
Publication Date:
September 01, 2021
Filing Date:
October 25, 2017
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
H01L41/312; H01L41/053; H01L41/083; H01L41/09; H01L41/187; H02N2/04
Domestic Patent References:
| JP2017098383A | ||||
| JP2008206285A | ||||
| JP11274590A | ||||
| JP2014060214A | ||||
| JP5018030U | ||||
| JP2015179808A | ||||
| JP2015225892A |
Foreign References:
| US20080196815 | ||||
| EP1962352A1 |