Patent ID: 6543701
Filing Date: 2003-04-08
Classification: B05B

Abstract:
An ultrasonic atomizer structure comprising:a main unit, a water supply regulating mechanism, and an atomizing unit, said main unit including a bottom cover, a middle casing, and an upper casing assembled into a vertical body; said bottom cover secured onto an underside of said middle casing; said middle casing including a compartment into which a fan is installed, a hollow ventilator duct and a hollow pipe extending vertically from a top side of said middle casing, a water input hole formed in said pipe near a bottom end of said pipe and a connective channel disposed between said pipe and said ventilator duct; said upper casing hermetically conjoined to a top section of said middle casing, a sealed interior section formed between said upper casing and said middle casing to form a water reservoir, a filler opening for adding water, a pivot hole, and an output port for diffusing atomized particles respectively disposed on a top side of said upper casing, a mist tube movably sleeved onto a mouth of said output port; said water supply regulating mechanism comprising a valve controlling stem which is an active tubular component installed inside said middle casing hollow pipe, having a valve on a bottom end that is aligned with an inner diameter of said pipe and an adjustment knob at a top end, said adjustment knob being utilized to rotate said valve controlling stem within a range of preset angles, thereby synchronously controlling said valve to open or close said water input hole at an inner wall of said pipe; a pressure cover frictionally fitted into said upper casing filler opening and secured in place by a check section projecting from said adjustment knob that exerts downward pressure against a top side of said upper casing; said atomizing unit comprising an accumulator, an elastic sleeve, a vibrator element, a conductive ring, and a circuit board, said accumulator disposed at a lower extent of said upper casing ventilator duct within the sealed interior section of an atomization chamber which has a conical space at its bottom end, an orifice through a center of said conical space, an annular groove section of a tapered contour formed around said orifice, a coupling ring placed around said annular groove section, and a circular wall extending outward axially and concentrically from an outer circumference of said coupling ring; said elastic sleeve being a soft insulation fitting having an inner conical section for aligned insertion into said conical space of said accumulator, an annular shoulder section of a stepped profile contoured downward along an inner diameter of said conical section that produces a constricted passage of a very small diameter at a bottom side of said orifice, a round hole that is aligned with said accumulator orifice, an annular edge extending downward from an outer diameter of said elastic sleeve, and an enclosing space receding towards its interior section; said vibrator element inserted flat into said elastic sleeve enclosing space and being capable of generating a sonic field sufficient to efficiently atomize liquid from said water reservoir; said conductive ring being a thin annular component dimensioned to fit into said enclosing space having an end surface firmly attached to a bottom side of said vibrator element; and said circuit board being an electronic control circuit tightly fastened to said accumulator within an interior section of said middle casing compartment.