Patent ID: 11870367
Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 0:
1. A piezoelectric energy harvester (PEH) comprising a piezoelectric cantilever beam and a disk, wherein the disk rotates about a disk axle and comprises a first magnet and optionally an unbalanced mass, and wherein the piezoelectric cantilever beam comprises a second magnet positioned on a tip of the piezoelectric cantilever beam, wherein during every rotation of the disk, the first magnet exerts a force on the second magnet on the piezoelectric cantilever tip such that the cantilever beam vibrates and generates electrical energy, and wherein when the piezoelectric energy harvester is placed in or on a blade of a rotary structure, the disk axle is substantially parallel to a blade span of the rotary structure.