US 12,278,572 B2
Composite layering of hydraulically amplified self-healing electrostatic transducers
Christoph Matthias Keplinger, Gerlingen (DE); Shane Karl Mitchell, Boulder, CO (US); Nicholas Alexander Kellaris, Boulder, CO (US); and Philipp Rothemund, Boulder, CO (US)
Assigned to The Regents of the University of Colorado, a body corporate, Denver, CO (US)
Appl. No. 17/436,455
Filed by The Regents of the University of Colorado, Denver, CO (US)
PCT Filed Mar. 4, 2020, PCT No. PCT/US2020/020978
§ 371(c)(1), (2) Date Sep. 3, 2021,
PCT Pub. No. WO2020/180982, PCT Pub. Date Sep. 10, 2020.
Claims priority of provisional application 62/813,266, filed on Mar. 4, 2019.
Prior Publication US 2022/0158570 A1, May 19, 2022
Int. Cl. H02N 1/00 (2006.01); H02N 1/08 (2006.01)
CPC H02N 1/002 (2013.01) [H02N 1/006 (2013.01); H02N 1/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A hydraulically amplified self-healing electrostatic (HASEL) transducer, comprising:
a dielectric layer comprising
a first fluid dielectric layer,
a second fluid dielectric layer, and
a solid dielectric layer separating the first fluid dielectric layer from the second fluid dielectric layer,
the dielectric layer comprising a first side and a second side opposing the first side;
a first electrode disposed at the first side of the dielectric layer;
a second electrode disposed at the second side of the dielectric layer;
a first outer layer disposed at the first electrode opposite the dielectric layer;
a second outer layer disposed at the second electrode opposite the dielectric layer;
wherein properties of the first outer layer and second outer layer differ from the properties of the dielectric layer at least with respect to mechanical properties and electrical properties of the respective layers,
wherein the first fluid dielectric layer is disposed between and adjacent to the solid dielectric and the first electrode,
wherein the second fluid dielectric layer is disposed between and adjacent to the solid dielectric and the second electrode, and
wherein the first and second fluid dielectric lavers are configured such that at least one of the first and second fluid dielectric lavers is displaced upon application of a voltage potential across the dielectric layer between the first and second electrodes.