Piezoelectric energy harvester with a controlled deflection beam, in particular for powering a leadless autonomous cardiac capsule
US12088221B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2023 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Feb 22, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/88
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The module comprises, in an envelope tube, a pendular unit comprising a piezoelectric transducer, PZT, beam, an inertial mass coupled to the free end of the beam, and a beam mount secured to the tube and fastened to a clamping part of the beam. The module further includes a symmetrization insert for calibrating and symmetrizing the pendular unit oscillations in transverse and lateral directions. The symmetrization insert is distinct from the beam mount and comprises a peripheral portion secured to the tube independently of the beam mount, and a central portion with an axial through-cavity inside which the beam extends in said region of free travel. The axial cavity extends between opposite travel limitation surfaces, which are symmetrical and capable of coming into contact with the beam in a bending configuration of the beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.