PROBLEM TO BE SOLVED: To provide an ultrasonic atomization device enhancing the diffusibility of an atomized liquid.SOLUTION: An ultrasonic atomization device 1 includes: a liquid-absorbing wick 22 absorbing a chemical liquid from a chemical liquid container 20 and a vibrating plate 32 having a large number of micropores 36 penetrating in the thickness direction, and atomizing and spraying the chemical liquid supplied through the liquid-absorbing wick 22 by the vibration of a piezoelectric oscillator 31 generating ultrasonic vibration by current carrying. The vibrating plate 32 has a truncated cone-shaped projecting part 37 supplied with the chemical liquid through the liquid-absorbing wick 22.COPYRIGHT: (C)2014,JPO&INPIT【課題】噴霧液体の拡散性を高めることが可能な超音波霧化装置を提供する。【解決手段】超音波霧化装置1は、薬液容器20から薬液を吸液する吸液芯22と、厚さ方向に貫通した多数の微細孔36を有し、通電により超音波振動を生じる圧電振動子31の振動によって、吸液芯22を介して供給された薬液を霧化噴霧する振動板32とを備え、振動板32は、吸液芯22を介して薬液が供給される、円錐台状の凸状部37を有する。【選択図】図1
