Energy harvesting module with compact-construction piezoelectric transducer, in particular for powering a leadless autonomous cardiaccapsule
US12157010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2022 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Apr 18, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An energy harvesting module includes a pendular unit with piezoelectric transducer elastically deformable in bending with a clamped end and a free end coupled to an inertial mass. The transducer includes at least one piezoelectric beam configured into two adjacent arms formed single-piece, with external and internal arms arranged side-by-side. The external arm has a clamped proximal end and a free distal end, and the internal arm has a free proximal end supporting the inertial mass, and a free distal end connected to the distal end of the adjacent external arm. An annular mount surrounds the beam at its proximal end and includes the clamp to which is fastened the proximal end of the external arm. The mount includes, in a central region in the vicinity of the clamp, a cavity inside which the inertial mass carried by the free proximal end of the internal arm can oscillate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.