Patent · US Active

Piezoelectric-triboelectric heel charger to generate electricity from locomotion using level mechanism and mechanical SSHI boosting circuit

US11502622B2 · kind B2 · utility

0Cited by

14References

17Claims

0Family size

Assignee

The Research Foundation for The State University of New York · US

Inventors

Ya Wang · Foster City, US
Haili Liu · Beijing, CN

Key dates

Filing date	Nov 8, 2019
Grant date	Nov 15, 2022
Priority date	—
Expiry date	Mar 23, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH10N30/857
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The disclosure provides an electricity generating insert for a piece of footwear, the insert can be removably placed in the heel portion, e.g. under the insole. The insert comprises a multilayer piezoelectric stack that alternatively flexes under the compression-decompression that occurs during locomotion, which flexing causes friction in the stack to generate electricity capable of charging electronic devices and the like, e.g. via a port on the footwear.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.