PROBLEM TO BE SOLVED: To provide a liquid spray device which stabilizes spraying by a simple structure at low costs.SOLUTION: In a tank (3), an air passage which circulates air in an external space into the tank (3) is formed. In the air passage, an external space opening (36) located at the external space side, an air circulation hole (30) located at the tank (3) interior side, and a resistance channel (34) which connects the external space opening (36) with the air circulation hole (30) are formed. A hole diameter of the air circulation hole (30) is formed so as to be larger than a hole diameter of a micropore of an elastic diaphragm (4).COPYRIGHT: (C)2014,JPO&INPIT【課題】簡単な構成で安価に噴霧を安定化し得る液体噴霧装置を提供する。【解決手段】タンク(3)には、外部空間の空気をタンク(3)内部へ流通する空気流路が形成され、この空気流路は、外部空間側にある外部空間開口(36)と、タンク(3)内部側にある空気流通孔(30)と、外部空間開口(36)と空気流通孔(30)との間を連結する抵抗流路(34)とが形成されている。また、空気流通孔(30)の孔径は、弾性振動板(4)の微孔の孔径よりも大きく形成されている。【選択図】図1
