Cost-effective high-bending-stiffness connector and piezoelectric actuator made of such
US11716908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2017 |
| Grant date | Aug 1, 2023 |
| Priority date | — |
| Expiry date | Aug 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/8554
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Cost effective connectors of high bending stiffness for making high-performance piezoelectric actuators and derivative devices are disclosed. In one embodiment, the connector has circumferentially alternating recesses of circular cross-section which can be cost-effectively machined out with conventional machining techniques. The circular recesses can be adopted to house circular or non-circular cross-sectioned piezoelectric active elements to make cost effective 2-level (2×) piezoelectric displacement actuators. In another embodiment, the non-circular cross-sectioned recesses in the connector include suitable wall openings to enable said recesses to be machined out cost effectively via conventional machining techniques, or via reduced use of non-conventional machining techniques. Additional stiffening mechanisms can be added to minimize the bending displacement of the base of recesses when desired. Cost effective derivative devices, such as high-performance multi-level displacement actuators and compact Langevin low-frequency underwater projectors, can be made from such connectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.