US 11,933,524 B2
Tandem-structured cooling device driven by electrostatic force
Qibing Pei, Calabasas, CA (US); and Yuan Meng, Los Angeles, CA (US)
Assigned to THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
Filed by The Regents of the University of California, Oakland, CA (US)
Filed on Sep. 10, 2021, as Appl. No. 17/472,182.
Claims priority of provisional application 63/076,509, filed on Sep. 10, 2020.
Prior Publication US 2022/0074631 A1, Mar. 10, 2022
Int. Cl. F25B 21/00 (2006.01); F28D 15/00 (2006.01)
CPC F25B 21/00 (2013.01) [F28D 15/00 (2013.01); F25B 2321/001 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A device, comprising:
one or more heat transfer laminates each comprising:
an electrode;
a first dielectric layer on a first side of the electrode; and
a second dielectric layer on a second side of the electrode;
a plurality of flexible electrocaloric elements, each of the flexible electrocaloric elements comprising:
an electrocaloric material layer;
a flexible electrode layer on the electrocaloric material layer;
one or more fixed portions each attached to one of the heat transfer laminates; and
a movable portion that is movable with respect to the one of the heat transfer laminates, and wherein:
the flexible electrocaloric elements are disposed in a plurality of m pairs, each pair comprising a first flexible electrocaloric element and a second flexible electrocaloric element attached on opposite sides of the one of the heat transfer laminates; and
the first flexible electrocaloric element and the second electrocaloric element are biased to move in opposite directions.