PIEZOELECTRIC VIBRATING DEVICE

摘要

Suggested is a piezoelectric vibration device. The piezoelectric vibration device includes: a piezoelectric vibration member which vibrates according to a preset voltage; and a weight member which touches at least one part of the piezoelectric vibration member and amplifies the vibration of the piezoelectric vibration member. The piezoelectric vibration member has extension parts prepared from a center part to a horizontal direction. The weight member penetrates at least a part of the piezoelectric vibration member.