JPH0568711A - Ultrasonic atomization inhaler - Google Patents

Abstract

PURPOSE:To provide an ultrasonic atomization inhaler having sufficiently good atomization efficiency to feed only fine and uniform particles of a liquid medicine to an inhalant tube. CONSTITUTION:In an ultrasonic atomization inhaler comprising a water tank portion 31 having an oscillator 32 provided on the bottom portion thereof, liquid medicine tank 4 installed corresponding to the oscillator 32 of the water tank portion 31, an atomizing chamber tube 1 disposed above the opening of the liquid medicine tank 4 in such a manner as closing the opening, and an inhalant tube 9 connected to the atomized liquid outlet portion 14 of the atomizing chamber tube 1 and spraying an atomized liquid in the atomizing chamber tube to the outside, a partitioning plate 2 for partitioning the inside of the atomizing chamber tube 1 into an atomization passage portion 1B communicating with the inhalant tube 9 and an atomized liquid-filled chamber portion 1A is disposed within the atomizing chamber tube 1.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an ultrasonic atomizing inhaler.

[0002]

2. Description of the Related Art FIG. 4 is a sectional view showing a conventional ultrasonic atomizing inhaler. This ultrasonic atomizing inhaler includes a case body 3 having a water tank portion 31 filled with water A, and a water tank portion 3.
1. An ultrasonic transducer 32 arranged at the bottom of the water tank 1 and a water tank 31
It is composed of a chemical liquid tank 4 which is arranged in a fitting shape inside, and an atomization chamber cylinder 1 which covers the upper opening portion of the chemical liquid tank 4 in a closed state. An opening 16 for introducing the air blown from the fan 6a into the atomization chamber cylinder 1 is provided on one end side of the upper part of the atomization chamber cylinder 1, and the opening end of the suction cylinder 9 is fitted on the other end side. The mounting hole 17 is opened. A cover body 7 is fitted to the upper opening surface of the case body 3, and the suction cylinder 9 and the atomization chamber cylinder 1 are fixed by the cover body 7.

When the ultrasonic transducer 32 is driven, the chemical liquid B in the chemical liquid tank 4 rises into the atomization chamber cylinder 1 as a liquid column C by the ultrasonic energy, and is atomized in the atomization chamber cylinder 1. Liquid (aerosol) is full. On the other hand, by driving the motor 6, the air blown from the fan 6a enters the atomization chamber cylinder 1, and the atomized liquid is jetted outward from the suction cylinder 9 by this airflow.

[0004]

In the above-described conventional ultrasonic atomizing inhaler, the base end portion of the inhaling cylinder is directly fitted in the atomizing chamber cylinder. Therefore, the inside of the atomization chamber cylinder is in direct communication with the portion filled with the generated atomization liquid and the suction cylinder. For this reason, there is a disadvantage that large chemical liquid particles generated from the liquid column rising in the atomization chamber cylinder are sent to the suction cylinder by air blowing together with fine chemical liquid particles, and the large chemical liquid particles are ejected from the suction cylinder to the outside. .. Further, there is a drawback that large chemical liquid particles adhere to the inner wall of the suction cylinder and do not return into the chemical liquid tank, resulting in poor spray efficiency.

It is an object of the present invention to solve the above problems and to provide an ultrasonic atomizing inhaler which can deliver only fine and uniform liquid medicine particles to an inhaler and has a high atomizing efficiency.

[0006]

In order to achieve this object, the ultrasonic atomizing inhaler of the present invention has the following structure. The ultrasonic atomization inhaler consists of a water tank with an ultrasonic vibrator on the bottom, a chemical tank that is installed corresponding to the ultrasonic vibrator of the water tank, and a closed configuration at the upper opening of this chemical tank. In the ultrasonic atomization inhaler, which comprises an atomization chamber cylinder provided in the above, and a suction cylinder that is connected to a delivery port of the atomization chamber cylinder and injects the atomization liquid in the atomization chamber cylinder to the outside, The atomizing chamber cylinder is characterized by being provided with a partition plate that divides the interior into a spray passage portion communicating with the suction cylinder and an atomizing liquid filled chamber portion.

In the ultrasonic atomizing inhaler having such a structure, the atomizing chamber cylinder is divided into a spray passage portion and an atomizing liquid filled chamber portion by a partition plate. This partition plate projects downward from the top plate corresponding to the atomization liquid delivery port of the top plate part of the atomization chamber cylinder that communicates with the suction cylinder, and the lower end is lower than the liquid column top part where the chemical liquid rises. , And the length is set downward (in the direction of the liquid surface of the chemical liquid). Therefore, the atomization chamber cylinder is in communication with the spray passage portion and the atomization liquid filled chamber portion on the lower side of the liquid surface of the chemical liquid,
The upper part is divided by a partition plate. As a result, the liquid column rising by the ultrasonic vibration energy is located on the side of the atomization liquid filling chamber, and the large-sized chemical liquid particles generated from the liquid column are
It is blocked by the partition plate and does not flow into the spray passage.
Further, the large-sized chemical liquid particles adhering to the inner wall of the atomized liquid filling chamber drop into the chemical liquid tank below. Therefore, by the air blown by the fan, only uniform and fine chemical liquid particles in the atomization chamber filling chamber portion are discharged to the suction cylinder through the spray passage portion.

In this atomizing chamber cylinder, a curved plate portion that bulges outward is attached at a proper position on the outer peripheral surface of the cylinder body to provide a blower guide path, and at the lower part of the cylinder body for advancing air flow communicating with the blower guide path. The cutout is open. This blow-in notch is provided on the side of the atomizing liquid filled chamber. As a result, the wind from the fan enters from the upper entrance of the air guide passage on the outer peripheral surface of the cylinder, enters the atomization liquid filling chamber from below through the notch in the lower part of the cylinder, and rises to atomize. In the state where the fine chemical liquid particles in the liquid-filled chamber are mixed, the fine chemical liquid particles again enter the spray passage portion from below and are sprayed to the outside from the suction cylinder.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view showing a specific embodiment of the ultrasonic atomizing inhaler according to the present invention.

The ultrasonic atomizing inhaler comprises a water tank portion 31 having an ultrasonic vibrator 32 at the bottom, a chemical liquid tank 4 arranged corresponding to the ultrasonic vibrator 32 of the water tank portion 31, and this chemical liquid. It is composed of an atomization chamber cylinder 1 provided above the opening of the tank 4 and a suction cylinder 9 connected to the atomization liquid delivery port of the atomization chamber cylinder 1. The water tank portion 31 is formed in a concave shape on the upper surface portion of the case body 3, and an ultrasonic transducer 32 is attached to the bottom surface thereof. A chemical liquid tank receiving cylinder 5 is attached to the upper peripheral edge of the opening of the water tank portion 31. The chemical liquid tank receiving cylinder 5 is a cylinder body having upper and lower openings, and a flange plate-shaped flange 51 is fitted and attached to the upper outer peripheral surface of the water tank portion 31. Therefore, even if the case body 3 falls down, the water A in the water tank portion 31 does not spill outside. Further, the chemical liquid tank 4 has a hemispherical shape with an upper surface opening, and its upper peripheral edge portion is attached to the upper peripheral edge of the chemical liquid tank receiving cylinder 5 in a hooked manner.

As shown in FIGS. 2 and 3, the atomization chamber cylinder 1 is a cylinder body 11 having a bottom opening and a bottom, and the atomization liquid is sent to one end side of an upper wall (top plate) of the cylinder body 11. The outlet 14 is opened, and a flange plate-shaped flange 13 is provided so as to protrude from the height center of the cylindrical body 11, and a bent portion 13a is provided at the tip of the flange 13. By fitting the bent portion 13a of the flange 13 on the outer surface of the upper peripheral edge of the chemical liquid tank receiving cylinder 5, the upper peripheral edge of the chemical liquid tank 4 is sandwiched between the flange 13 and the receiving cylinder 5. Therefore, even if the case body 3 falls down, the chemical liquid B does not spill outside. Further, the upper surface (upper wall) of the atomizing chamber cylinder 1 is detachably attached to the back surface of the cover body 7 fitted to the upper surface of the case body 3, and in this attached state, the cover body 7 is connected. Suction cylinder 9 in opening 71
Is installed. Therefore, the atomization liquid delivery port (and the spray passage portion 1B described later) 14 of the atomization chamber cylinder 1 and the suction cylinder 9 communicate with each other. A fan 6a is attached to the cover body 7 on the side opposite to the water tank portion 31, and the fan 6a is connected to the motor 6 of the case body 3.

A feature of the present invention is that a flat plate-shaped partition plate 2 is provided inside the atomization chamber cylinder 1 to partition the atomization chamber cylinder 1 into an atomization liquid-filled chamber portion 1A and a spray passage portion 1B. There is a point in doing so. The partition plate 2 is attached to one end of the atomizing liquid delivery port 14 provided on the top plate of the cylindrical body 11 so as to hang downward from the top plate. The partition plate 2 is set to have a length such that the lower end is located in the liquid surface direction of the liquid chemical B than the top of the liquid column C rising from the liquid chemical B by the ultrasonic vibration energy acting on the liquid chemical B in the liquid chemical tank 4. is there. The partition plate 2 allows the inside of the atomization chamber cylinder 1 to communicate with the lower part, that is, the liquid surface side of the chemical liquid B, but the upper part communicates with the atomization liquid delivery port 14,
B and the atomizing liquid-filled chamber section 1A. The liquid column C of the chemical liquid B is designed to rise almost at the center of the atomized liquid filling chamber 1a.

In addition, the cylindrical body 11 of the atomizing chamber cylinder 1 is provided with a curved plate 15 bulging outwardly on the outer surface on the side of the atomized liquid-filled chamber portion 1a, and the curved plate 15 and the outer surface of the cylindrical body 11 are attached. The gap between and is used as the ventilation guide path 15a. That is, the curved plate 15 is attached through the flange 13 in a penetrating manner, and the air blown from the fan 6a attached to the cover body 7 is set to enter from the air blow guide passage 15a. On the other hand, in the lower part of the cylindrical body 11 and at a position corresponding to the curved plate 15, a blower inlet cutout 11a is opened. That is, the cover body 7
The air from the fan 6a attached to the
From the upper entrance of 5a, a ventilation guideway (bending plate 15 and cylinder 1
It is set so that it enters into the atomization chamber cylinder (atomization liquid filling chamber portion 1A) 1 from the lower cutout 11a.

In the ultrasonic atomizing inhaler having such a structure, when the ultrasonic vibrator 32 is driven, the chemical liquid B in the chemical liquid tank 4 is moved to the atomized liquid filling chamber 1A side by the ultrasonic energy. Stand up as C. The partition plate 2 has a liquid column B at the lower end.
It is set so as to be located further below the top, that is, in the liquid surface direction of the chemical liquid B. Therefore, the large-sized chemical liquid particles generated from the liquid column C are obstructed by the partition plate 2, do not flow into the spray passage portion 1B side, and adhere to the inner wall of the atomization liquid filling chamber portion 1A, and then the chemical liquid B below. Fall inside. Also, fan 6
The air blown from a enters from the upper entrance of the air blow guide path 15a downward along the air blow guide path 15a (the gap between the curved plate 15 and the outer surface of the cylindrical body 11), and from the lower cutout 11a to the atomization chamber. The atomized drug solution that uniformly enters the atomization liquid filling chamber 1A and rises into the atomization liquid filling chamber 1A and fills the atomization liquid filling chamber 1A through the spray passage 1B. Discharge to 9. That is, the air blown from the fan 6a is generated by the atomization chamber cylinder
After entering from the lower part of the above, it rises inside, and in the state where only a fine atomized chemical liquid is further mixed, it rises from the lower part of the spray passage portion 1a and flows into the suction cylinder 9.

[0015]

As described above, according to the present invention, the atomizing chamber cylinder is provided with the partition plate which divides the interior into the atomizing passage section communicating with the suction cylinder and the atomizing liquid filled chamber section. The liquid column generated by the ultrasonic energy rises only in the atomization liquid filled chamber portion, and the large liquid particles generated from the liquid column are obstructed by the partition plate and are not delivered to the spray passage portion side. Therefore, only uniform and fine atomized chemical liquid particles are sprayed from the suction cylinder, and the suction efficiency is improved. Further, the large-sized liquid particles collide with the inner wall of the atomization liquid-filled chamber portion and immediately drop into the lower chemical liquid tank. As a result, the spray efficiency is improved, and the excellent effects of achieving the object of the invention are achieved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example ultrasonic atomizing inhaler.

FIG. 2 is a perspective view showing an atomization chamber cylinder of an example ultrasonic atomization inhaler.

FIG. 3 is a perspective view of the atomizing chamber cylinder of the example ultrasonic atomizing inhaler as viewed from the back side.

FIG. 4 is a sectional view showing a conventional ultrasonic atomizing inhaler.

[Explanation of symbols]

 1 Atomization Chamber Tube 2 Partition Plate 4 Chemical Solution Tank 31 Water Tank Section 32 Ultrasonic Transducer

Claims (2)

[Claims] 1. A water tank part having an ultrasonic vibrator on the bottom, a chemical solution tank provided corresponding to the ultrasonic vibrator of the water tank part, and a chemical solution tank provided on the upper opening of the chemical solution tank in a closed state. The atomization chamber cylinder, and an ultrasonic atomization inhaler that is connected to the delivery port of the atomization chamber cylinder and injects the atomized liquid in the atomization chamber cylinder to the outside. An ultrasonic atomizing inhaler, characterized in that a partition plate for partitioning a spray passage portion, which communicates with the suction cylinder, and an atomizing liquid filled chamber portion is provided in the cylinder. 2. An atomization chamber cylinder having a partition plate provided therein, a bottomed bottomed cylinder portion having a cutout opening for blowing air at a proper lower position, and the cutout opening at a proper location on the outer periphery of the cylinder portion. 2. An ultrasonic atomization suction device according to claim 1, further comprising: an air flow guide passage communicating with the fan, and the air blown from the fan is introduced from the air flow guide passage into the atomization chamber cylinder through the notch. vessel.