PIEZOELECTRIC ACTUATOR

A piezoelectric actuator includes a piezoelectric element, and a case accommodating the piezoelectric element. The case is deformable to conform with expansion or contraction of the piezoelectric element. The case includes a cylinder including a first end portion being open, and a first cap includin...

Full description

Saved in:
Bibliographic Details
Main Author KURODA, Wataru
Format Patent
LanguageEnglish
Published 11.08.2022
Subjects
ELECTRICITY
Online AccessGet full text

Cover

More Information
Summary:A piezoelectric actuator includes a piezoelectric element, and a case accommodating the piezoelectric element. The case is deformable to conform with expansion or contraction of the piezoelectric element. The case includes a cylinder including a first end portion being open, and a first cap including a first end plate being circular and a first protrusion being annular. The first protrusion is located on a first surface of the first end plate and protrudes perpendicularly to the first surface. The cylinder includes the first end portion receiving the first protrusion on the first cap. The first end portion includes an inner peripheral surface joined to an outer peripheral surface of the first protrusion. The first end portion includes an edge located nearer an edge of the first protrusion than the first surface of the first end plate in an axial direction of the cylinder.
Bibliography:Application Number: US202017629972