磁気バネを利用した薄型リニア振動アクチュエータの携帯電話への応用

概要

論文の詳細を見る
A cellular phone gains in popularity remarkably. The miniaturization and lightening a cellular phone are advanced because of it. Recently, most cellular phones have the vibration function to inform the arrival of a message. The vibration motor, which rotates the eccentric weight, is capitalized on as a vibration source now. However, it is difficult to miniaturize the rotary vibration motor. We developed the thin Linear Oscillatory Actuator (LOA) which was able to move the weight linearly. It could resonate with magneto-spring, that is made by detent force of permanent magnet. The vibration acceleration: 6.9 meter per second square, that is 1.5 times general the rotary vibration motor, can be generated by the LOA though it's power is almost equal to the rotary vibration motor. In this paper, operation principals, consideration of magneto-spring constant, and its resonance characteristics are described about this LOA.
日本AEM学会の論文
2000-09-10