Design of Horizontally Vibrating Linear Motor for Thin Smart Phone

Abstract:

Smart phone has various function and large display for convenience. However, there is some disadvantage that the smart phone is less portable than before. The thickness of the smart phone should be reduced in order to improve the portability of a smart phone. The vibrating motor is one of the thicker components in a smart phone. Therefore, we develop a horizontally vibrating linear motor that can be used to reduce the thickness of a smart phone. In order to develop a horizontally vibrating linear motor (HVLM), Mathematical vibration modeling is used, and a finite element analysis using the commercial electromagnetic analysis software MAXWELL. Also, the guide spring is designed using commercial structural analysis software ANSYS workbench. Finally, a prototype is manufactured for use in experiments. Its thickness is reduced by 30 % compared to a vertical linear vibrating motor. In addition, the motor can vibrate with an acceleration of approximately 2.10 Gravity (G).

• Periodical: Applied Mechanics and Materials (Volumes 548-549)
• Pages: 824-828
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.548-549.824
• Online since: April 2014
• Authors: Ki Bum Lee*, Jae Hee Kim, Jin Ho Kim
• Keywords: Horizontally Vibrating Linear Motor, Smart Phone, Thickness, Vertical

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