Linear piezoelectric motor with longer travel
US11581826B2 · kind B2 · utility
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6Claims
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Assignee
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Key dates
| Filing date | Feb 14, 2019 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Dec 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/026
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear piezoelectric motor including a passive element having an elongated shape, and a piezoelectric actuator including a resonator including a pair of arms connected at one of their ends at a connection zone, the two other ends being called free, the passive element being capable of being moved linearly between the free ends by friction of the free ends against the passive element, the passive element and the resonator being inclined with respect to one another by a non-zero angle (α) of less than 90 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.