ROTATING MEMBER AND ELECTROMECHANICAL CONVERTER INCLUDING THE SAME

To provide a rotating member and an electromechanical converter including the same that can easily distinguish between the front and the back.SOLUTION: A rotating member used in an electromechanical converter includes an effective electrification region that is used to convert between electric power and motive power by using electrostatic force between a counter electrode and the charging area, which is a charging area that is arranged so as to face the counter electrode of the fixed substrate, a shaft hole provided in the center of the rotating member, and at least one opening that is arranged around the shaft hole in the central area on the inner peripheral side of the effective electrification region, and a figure constituted by at least one opening is always asymmetric with respect to an arbitrary reference line passing through the center of the shaft hole even when the rotating member performs a rotating operation centering on the shaft hole.SELECTED DRAWING: Figure 3 【課題】表と裏が簡易に判別可能な回転部材、およびそれを備える電気機械変換器を提供する。【解決手段】回転部材は、電気機械変換器に用いられる回転部材であって、固定基板の対向電極と対向するように配置される帯電領域であって、対向電極と帯電領域との間の静電気力を利用して電力と動力の間の変換を行うことに利用される有効帯電領域と、回転部材の中央部に設けられた軸孔と、有効帯電領域より内周側の中央領域において、軸孔の周囲に配置された少なくとも一つの開口部と、を有し、少なくとも一つの開口部で構成される図形は、回転部材が軸孔を中心とする回転動作を行っても、軸孔の中心を通る任意の基準線に対して常に左右非対称である。【選択図】図３