A Simple Plane-Shaped Micro Stator Using Silicon Substrate Mold and Enamel Coil

공학 > 전기공학
( Ju Chan Choi ) , ( Young Chan Choi ) , ( Dong Geun Jung ) , ( Jae Yun Lee ) , ( Seong Ki Min ) , ( Seong Ho Kong )
센서학회지 2013년, 제22권 제5호, 333~337페이지(총5페이지)
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    This study proposes a simply fabricated micro stator for higher output power than previously reported micro stators. The stator has been fabricated by inserting enamel coil in silicon mold formed by micro etching process. The most merits of the proposed micro stator are the simple fabrication process and high output power. Previously reported micro stators have high resistance because the micro coil is fabricated by relatively thin-film-based deposition process such as sputtering and electroplating. In addition, the previously reported micro coil has many electrical contact points for forming the coil structure. These characteristics of the micro stator can lead to low performance in output power. However, the proposed micro stator adopts commercially available enamel coil without any contact point. Therefore, the enamel coil of the proposed micro stator has low junction resistance due to the good electrical quality compared with the deposited or electroplated metal coil. Power generation tests were performed and the fabricated stator can produce 5.4 mW in 4000 RPM, 1 Ωand 0.3 mm gap. The proposed micro stator can produce larger output power than the previously reported stator spite of low RPM and the larger gap between the permanent magnet and the stator.
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