JPS5951352B2 - Ultrasonic atomizer - Google Patents

Abstract

PURPOSE:To suit ultrasonic atomizers for such high-priced liquids as perfume by enabling two kinds of liquid to be atomized at a time by one ultrasonic vibrator and by atomizing either of said two kinds of liquid through dripping. CONSTITUTION:When an ultrasonic vibrator 13 is driven by a high-frequency vibrator 14, the ultrasonic wave emitted from one face of said vibrator 13 propagates in liquid 12 to the inclined face of a reflecting member 15 and reflected upward dependent on this inclination to come out of said liquid 12. At this time, the surface of said liquid 12 activated and a liquid column 12b of fine mist 12a particles is developed. At the same time as the excitation of said ultrasonic vibrator 13, in the meanwhile, the particle liquid from 17 from a liquid dripping pipe 16 is let drip onto the other side 136 of said vibrator 13 and divided in fine particles due to the ultrasonic oscillation of said other side 13b. Then, the mists 12b and 17a made by atomizing two kinds of liquid are discharged through mist discharge tube 20 while mixed with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic atomizer that atomizes a liquid by applying ultrasonic energy to the liquid. This invention relates to an ultrasonic atomization device that can

Generally, the ultrasonic atomization device illustrated in FIG. 1 is known.

That is, in the same figure, 1 is a tank containing a liquid 2 to be atomized, 3 is an ultrasonic vibrator fixed in a through hole 1a formed in the center of the bottom of the tank so as to be sealed from the outside, and 4 is the vibrator. Electrode surface 3
A high frequency oscillator is connected between a and 3b, 5 is a blower pipe connected to the upper side of the tank 1, and 6 is a mist exhaust pipe connected to the upper surface of the tank. In such a device, when the ultrasonic vibrator 3 is excited by the high-frequency oscillator 4, ultrasonic energy is irradiated in the direction of the arrow from the surface 3a of the vibrator in contact with the liquid 2, and the liquid 2a rises from the liquid surface and spreads around the liquid. A mist 2a' consisting of a group of minute particles scattered in the air is discharged from the exhaust tube 6 by the air sent into the tank 1 from the blower pipe 5. In this case, if water is used as the liquid 2, it will be released indoors or It can be used as a humidifier to maintain a constant temperature inside a car, or as a fragrance device to fill the interior of a car or car with a desired scent when a solution containing fragrance is used as Liquid 2. When the mixture is used, it can be used as a deodorizer to remove bad odors that accumulate in rooms, etc., and can also serve various purposes by selecting an appropriate liquid depending on the purpose.

These ultrasonic atomizers are installed either indoors or in cars, or are incorporated into air conditioners such as heaters. At this time, at least two types of atomizers, such as the If a humidifying device and a fragrance device are used together, it has the advantage of humidifying the interior of a room or a car and at the same time allowing the user to enjoy a fragrance of their choice according to their sense of smell, creating a refreshing mood.

The present invention aims to provide an ultrasonic atomizer capable of simultaneously exhibiting the functions of two types of liquids as described above, and will be explained below with reference to the drawings.

In FIG. 2, 11 is a tank, which is divided into two independent chambers 5, 50 by a partition wall 11a'.

A through hole 11b is bored in the main part of the partition wall 11a.
Reference numeral 12 denotes a desired liquid to be atomized, such as water, stored in a certain amount in chamber 5 of the tank.

Reference numeral 13 denotes an ultrasonic transducer fixed in the through hole 11b of the partition wall 11a so as to be sealed from the side of the other chamber 50. As is well known, the ultrasonic transducer 13 is made in the shape of a plate from a piezoelectric material such as lead zirconate titanate porcelain. It is polarized by attaching electrodes 13a and 13ib.

One surface 13a of the ultrasonic transducer contains liquid 1 stored in one chamber 5.
It is in contact with 2. 14 is a double-sided electrode 13a of the ultrasonic transducer
, 13b excites the vibrator 13 at a predetermined resonance frequency.

Reference numeral 15 denotes a sound wave reflecting member disposed in the liquid in one chamber S of the tank, which refracts the ultrasonic energy radiated laterally from one surface of the vibrator toward the liquid surface.

16 is another room S from the side of tank 1.

The tip of the droplet tube is positioned above the ultrasonic transducer 13, and the other end of the droplet tube is inserted into the liquid 1 stored in the chamber S.
2 is connected to a container (not shown) for storing a liquid 17, for example, perfume, and the liquid 17 is dripped onto the other surface 13b of the vibrator. 18a and 18b are the chambers S, S on both sides of the tank 11.

One of the air pipes 18a is connected to the upper part of the room S1, and the other air pipe 18b is connected to the air pipe 18b.
is in another room S. Each of these is provided under the . 19 is tank 11
The upper lid 20 fitted into the opening on the upper surface is a mist exhaust tube fitted into the opening protrusion 19a at the center of the upper lid.

To explain the operation of the device of the present invention, the high frequency oscillator 14
When the ultrasonic vibrator 13 is driven, ultrasonic energy is radiated laterally from both surfaces 13a and 13b of the vibrator, but the ultrasonic wave radiated from one surface 1.3a propagates in the liquid 12. and hits the inclined surface of the reflecting member 15,
The liquid 12 is refracted upward according to the inclination angle Θ and exits from the liquid surface, but at this time the surface of the liquid 12 is activated and a liquid column 12b containing a mist 12a made of minute particles rises. - On the other hand, at the same time as the ultrasonic transducer 13 is excited, granular liquid 17 is dropped from the drop tube onto the other surface 13b of the transducer, and the other surface 1
It is decomposed into minute particles 17a by the ultrasonic vibration of 3a. Thus, the mist 12b of the liquid 12 is atomized by the ultrasonic energy irradiated from the one surface 13a of the ultrasonic transducer.
and the liquid 17 atomized by the ultrasonic vibration of the other surface 13b.
The mist 17a flows into each chamber S, S of the tank through the blower pipes 18a and 18b. The mist rises on the air fed into the tank, mixes inside the upper lid, and is discharged from the mist pipe 20 to the outside of the tank.
In this case, when water is used as the liquid 12 and perfume is used as the liquid 17, it is possible to humidify the interior of the room or the car and at the same time add a desired fragrance. Next, FIG. 3 shows two chambers S, , S inside the tank 11.

The lower part of the partition wall Ila that partitions into is inclined upward to the right, a through hole 11b is bored in the inclined part IIC, and the ultrasonic transducer 13 is fixed in the hole so as to be sealed therein. . In the case shown in FIG. 3, since the vibrator 13 is installed not vertically but at an angle, the liquid 17 from the liquid drop tube 16 can be reliably dripped onto the other surface 13b of the vibrator. In each of the above embodiments, the mist of the two types of liquids atomized by the ultrasonic vibrator is mixed and released from the mist exhaust pipe, but there are two pairs of liquids on the top cover that communicate with each chamber of the tank. It may also be configured such that two types of mist atomized in each room are separately discharged from the pair of mist exhaust pipes.

As described above, according to the ultrasonic atomization device of the present invention, two types of liquids can be atomized at the same time using one ultrasonic vibrator. In addition, since one of the two types of liquids is atomized by dripping, it is suitable for cases where expensive liquids such as perfumes are used.The device of the present invention has an extremely simple configuration and reduces power consumption. There are benefits such as reducing

[Brief explanation of drawings]

FIG. 1 shows a basic aspect of a conventionally known ultrasonic atomization device in a sectional front view. FIGS. 2 and 3 each show a cross-sectional front view of an ultrasonic atomization device according to the present invention. 11... Tank, 11a.
...Partition wall, 11b...Through hole, 12...
...Liquid, 13...Ultrasonic vibrator, 15...
... Sound wave reflecting member, 16 ... Droplet tube, 17
...Liquid, S,,S.

Claims (1)

[Claims] 1 The inside of the tank is divided into two independent chambers by a partition wall, and a through hole is bored in the main part of the partition wall, and an ultrasonic vibrator is fixed in the through hole in a sealed manner, and an ultrasonic vibrator is installed in one chamber of the tank. A reflection member is disposed to house a desired liquid to be atomized by ultrasonic energy irradiated from one side and refract the ultrasonic energy toward the liquid surface, and an ultrasonic vibrator is provided in the other chamber of the tank. An ultrasonic atomizer that has a droplet tube inserted into the other surface to drop another liquid to be atomized.