Inkjet 3D Printed MEMS Vibrational Electromagnetic Energy Harvester

Bartosz Kawa, Krzysztof Śliwa, Vincent Ch. Lee, Qiongfeng Shi and Rafał Walczak
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Bartosz Kawa: Department of Microsystems, Wroclaw University of Science and Technology, 50370 Wroclaw, Poland
Krzysztof Śliwa: Department of Microsystems, Wroclaw University of Science and Technology, 50370 Wroclaw, Poland
Vincent Ch. Lee: Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117608, Singapore
Qiongfeng Shi: Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117608, Singapore
Rafał Walczak: Department of Microsystems, Wroclaw University of Science and Technology, 50370 Wroclaw, Poland

Energies, 2020, vol. 13, issue 11, 1-10

Abstract: Three-dimensional (3D) printing is a powerful tool that enables the printing of almost unlimited geometry in a few hours, from a virtual design to a real structure. In this paper, we present a micro-electromechanical energy harvester that utilized a 3D printed micromechanical structure combined with a miniature permanent magnet and a microelectronic coil towards a hybrid electromagnetic vibrational hybrid energy harvester. Various micromechanical structure geometries were designed, printed, and tested. The characteristic dimensions of the springs were from 200 ?m to 400 ?m and the total volume of the devices was below 1 cm 3 . The resonant frequencies (95–340 Hz range), as well as bandwidths (6–23 Hz range), for the developed prototypes were determined. The maximal generated output power was almost 24 ?W with a power density up to almost 600 ?W/cm 3 .

Keywords: 3D printing; MEMS; energy harvester (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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