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http://dx.doi.org/10.5762/KAIS.2017.18.6.8

Study on the mobile phone case for self-power generation  

Kim, Jin Ho (Division of Mechanical Engineering, Yeungnam University)
Park, Chang Hyung (Division of Mechanical Engineering, Yeungnam University)
Han, Seung Chul (Dept. of Automobiles Yeungnam College University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.6, 2017 , pp. 8-12 More about this Journal
Abstract
This paper presents the mobile phone case for self-power generation and recharge for emergency calls or text messages at the discharge of a battery. If the user shakes his smart phone case, the interaction of electromagnetic coil and permanent magnet in an electric generator produces electric energy, which charges the lithium-ion battery. This enables the user to give a few calls or text messages. In addition, the vibration energy from humans walking at a frequency of 2 ~ 3Hz charges the battery. The electric generator was simulated using MAXWELL, a commercial electromagnetic analysis program, to analyze the electric power generation. Finally a prototype of the mobile phone case for self-power generation was built based on the analysis and its performance was verified.
Keywords
Energy harvesting; Linear generator; MAXWELL; Mobile phone case; Self-Power generation;
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