ULTRASONIC ATOMIZER, ULTRASONIC INHALATOR AND METHOD OF CONTROLLING SAME.

摘要

A bush (31) is fitted in a housing (10) and an ultrasonic pump (12) is liquid-tightly supported by said bush (31). The ultrasonic pump (12) is constituted by a pump shaft (21) formed therein with a liquid lifting hole (22) extending axially and having openings at the top end and the bottom end thereof and an ultrasonic vibrator (23) secured to the axial-directional substantial center of said pump shaft (21). Detachably mounted in the housing (10) is a liquid container (16), into which is inserted the lower end portion of the pump shaft (21). A cap (15) is detachably mounted to the top portion of the housing (10) in a manner to cover the top end portion of the pump shaft (21). A spray opening (51) is opened in the top surface of the cap (15), a stepped portion (57) for supporting a mesh disc (14) at the circumferential edge thereof is formed at a position downwardly of the spray opening (51), and a compression spring (42) is provided between a portion of the top surface of the cap and the mesh disc. A multiplicity of fine perforations (14a) are formed in the mesh disc (14), and said mesh disc is pressed against the top end surface of the pump shaft (21) by the compression spring (42).