VIBRATION TYPE POWER GENERATOR AND METHOD OF MANUFACTURING THE SAME

• Main Authors: HATTORI YASUSHI, KOMORI KAZUYA, SUZUKI YUJI, NAKANO JUN
• Format: Patent
• Language: English; Japanese
• Published: 06.04.2017
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To provide a vibration type power generator which materializes reduction in the number of components thereof and has simple structure thereby being made low-profile, and a method of manufacturing the same.SOLUTION: The vibration type power generator comprises: a rotation center shaft 22; a bearing 24 which supports the rotation center shaft 22 in a freely rotatable manner; a stationary substrate 26 comprising a plurality of first electrodes 32; a rotary substrate 34 which is fixed to the rotation center shaft 22 and rotated relatively to the stationary substrate 26 and includes second electrodes 38; a weight 40 that is provided in the rotary substrate 34; a charge holder 42 which is provided together with the second electrodes 38; and a spacer mechanism 44 which is positioned radially outside the plurality of first electrodes 32 and the plurality of second electrodes 38. The spacer mechanism 44 is constituted of: a first groove part 48 that is formed on the stationary substrate 26 by etching; a second groove part 50 that is formed on the rotary substrate 34 by etching so as to oppose the first groove part 48; and rolling elements 46 that are stored in the first groove part 48 and the second groove part 50.SELECTED DRAWING: Figure 2 【課題】部品点数を少なくして、しかも簡単な構造で薄形化を図ることができる振動型発電機及びその製造方法を提供する。【解決手段】振動型発電機は、回転中心軸２２と、回転中心軸２２を回転自在に支持する軸受２４と、複数の第１電極３２を備えた固定基板２６と、回転中心軸２２に固定されて固定基板２６に対して回転し、第２電極３８を備えた回転基板３４と、回転基板３４に設けられた重錘４０と、第２電極３８と一緒に設けられた電荷保持体４２と、複数の第１電極３２及び複数の第２電極３８の径方向外側に位置するスペーサ機構４４とを備えている。スペーサ機構４４は、固定基板２６にエッチングにより形成された第１の溝部４８と、第１の溝部４８と正対するように、回転基板３４にエッチングにより形成された第２の溝部５０と、第１の溝部４８及び第２の溝部５０内に収納される転動体４６とからなる。【選択図】 図２