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US 12,719,389 B2Granted
High voltage energy harvesting and sensing with 3D spiral design
AssigneeUniversity of South Carolina
InventorsMohammad Sadegh Saadatzi, Sourav Banerjee
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Abstract
Described herein is a novel piezoelectric energy harvester based on a metamaterial structure capable of scavenging energy from multiple low-frequency ambient vibrations employing a mass-in-mass Phononic crystal structure and comprised of a piezoelectric snail structure, encapsulated in a cylindrical rubber matrix, and encased in a rigid cubic frame.
Claims23
A novel energy harvester comprising:
- at least one piezoelectric membrane comprising at least one phononic crystal formed into a three-dimensional spiral pattern;
- a flexible matrix to contain the piezoelectric membrane, which is embedded into and surrounded by the flexible matrix, wherein the matrix is designed to allow the piezoelectric membrane comprising the three-dimensional spiral pattern to flex and deform;
- and
- a casing enclosing the matrix and the piezoelectric membrane.
1 more element
A method for making a novel energy harvester comprising forming at least one piezoelectric membrane comprising at least one phononic crystal;
- forming the at least one piezoelectric membrane comprising at least one phononic crystal into a three-dimensional spiral pattern;
- creating a flexible matrix to contain the piezoelectric membrane, which is embedded into and surrounded by the flexible matrix, wherein the matrix allows the piezoelectric membrane comprising the three-dimensional spiral pattern to flex and deform;
- and
- forming a casing to enclose the matrix and the piezoelectric membrane.
1 more element
Dependencies are inferred from the claim text.