PIEZOELECTRIC ACTUATOR Russian patent published in 2024 - IPC H02N2/02 H10N30/20 

FIELD: electricity.

SUBSTANCE: invention relates to devices based on piezoelectric materials, namely to piezoelectric actuators of complex controlled forms of deformation, and is intended for use in micromechanics, controlled optics, sensor and medical equipment, acoustics. Piezoelectric actuator, including a piezoelectric layer, a current-conducting line in the form of one or two opposing spirals of electrodes located on one or both sides of the piezoelectric layer, according to the invention, it includes an electrically insulating substrate made in the form of a lattice frame, the cells of which are electrically connected to each other by connecting electrodes. Piezoelectric actuator is made composite and includes a plurality of single-type piezoelectric cells – piezoelectric actuators built into the cells of the lattice frame, and the current-conducting line is made multi-wire in the form of one or two opposite lying to each other multistart spirals of electrodes located on one or both sides of the piezoelectric layer.

EFFECT: increasing efficiency by enabling the creation of complex, controlled forms of deformation.

8 cl, 3 dwg