JP2002326045A - Ultrasonic atomizing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ultrasonic atomizing apparatus, in which the change of parts that easily receive the damage due to the reflection of ultrasonic wave is facilitated and the service life as the apparatus is prolonged. SOLUTION: The ultrasonic atomizing apparatus has a resin-made water tank having an ultrasonic vibrator arranged in the bottom center part and capable of storing water inside and a liquid chemical cup engaged with the water tank and for housing a liquid chemical. The water tank has an opening part on the bottom center part and a bottom surface member forming the bottom part of the water tank around the opening part is attached freely detachably to the opening part with a packing. The ultrasonic vibrator is fixed detachably to the bottom surface member with a packing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic atomizing device, and more particularly to an ultrasonic atomizing device for atomizing a chemical solution by ultrasonic vibration generated by an ultrasonic vibrator through water of a medium.

[0002]

2. Description of the Related Art An ultrasonic atomizer is a container that is housed in a case body and stores therein water that functions as both a transmission medium for ultrasonic energy and a cooling medium. It is composed of a water tank provided, and a chemical solution cup fitted into the water tank and storing a chemical solution therein. When this device is operated, the chemical liquid in the chemical liquid cup is bubbled through the water as a medium by the ultrasonic vibration transmitted from the ultrasonic vibrator, and the chemical liquid atomized by this is discharged to the outside by the blowing means. You.

Conventionally, an ultrasonic vibrator for generating ultrasonic vibration has been conventionally provided with an opening for inserting an ultrasonic vibrator when a main body case including a water tub is manufactured by resin molding or the like. A mounting screw was fixed in the vicinity of the part in a state of protruding outward in advance, and the ultrasonic vibrator was directly mounted on the water tank by a nut or the like using this screw (see FIGS. 1 and 2). . A packing for preventing water leakage is provided between the periphery of the opening of the water tank and the ultrasonic transducer.

[0004] When the ultrasonic vibrator constructed as described above is operated, the ultrasonic wave irradiated from the ultrasonic vibrator to the bottom of the chemical solution cup is a standing wave, but the ultrasonic wave reflected back from the chemical solution cup. Is the irregularly reflected wave. Among the inner surface of the water tank exposed to the irregularly reflected wave, the energy may be partially and temporarily concentrated at the bottom of the inner surface of the tank due to interference. However, there was a problem that the steel was damaged by heat melting and deterioration. In particular, it is known that when a chemical solution is poured into a chemical solution cup, for example, when a scratch or a dent is generated in a lower portion of the chemical solution cup, irregularly reflected waves increase, and damage to the inner surface of the water tank is promoted. I have.

On the other hand, since the water in the water tank absorbs a part of the ultrasonic energy, the temperature of the water tank rises as the operation continues. Therefore, the water tank and the ultrasonic vibrator in contact with the water are affected by the heat. That is, when the ultrasonic atomizer repeats the operation and the stop, the temperature of the water repeatedly rises and falls accordingly, so that the water tank and the ultrasonic transducer in contact with the water slightly expand and expand. Repeated contraction.

[0006] Since the water tank and the ultrasonic vibrator are objects having different thermal expansion coefficients, by repeating this expansion and contraction, mounting screws for fixing the water tank and the ultrasonic vibrator, in particular, the water tank and the ultrasonic vibrator. A thermal stress will be generated in the fixing portion of. In addition, stress must be applied to the fixing portion to hold the mounting screw during the manufacturing stage, and the stress generated by mounting the ultrasonic vibrator with a nut or the like also has no relation to the operation of the atomizing device. Exists in this fixed portion.

[0007] Since the fixed portion to which the plurality of stresses are applied is located at a position affected by the extended diffused wave, cracks are formed in the resin material at the fixed portion during operation of the ultrasonic atomizer. This caused problems such as leakage of water. In the case where such a defect such as a crack or leakage of water occurs, permanent repair is difficult because the water tank is often made of resin. In addition, the water tank is often configured integrally with the main body case, and if you try to repair it by replacing parts, you will have to replace the main body case, so it takes a lot of time and expense was there.

[0008]

The inventor of the present invention has made intensive studies to solve the above-mentioned drawbacks. As a result, the bottom of the tank including the vicinity of the center is made detachable, and the bottom of the tank is attached to the center of the detachable bottom. The inventor has found that the detachable mounting of the ultrasonic vibrator facilitates replacement of the damaged portion, thereby prolonging the life of the atomizing device, and reached the present invention. Accordingly, it is an object of the present invention to provide an ultrasonic atomizing apparatus which facilitates replacement of a part which is easily damaged by the reflection of ultrasonic waves and which can prolong the life of the apparatus.

[0009]

SUMMARY OF THE INVENTION The object of the present invention is as follows.
A resin water tank that can store water inside, which is provided with an ultrasonic transducer in the center of the bottom, and is fitted to the water tank,
An ultrasonic atomizing device having a liquid medicine cup for putting a liquid medicine therein, wherein the water tank has an opening in the center of the bottom surface thereof, and the opening has a water tank bottom around the opening. A bottom member capable of being attached is detachably attached via a packing, and the bottom member is detachably fixed to the ultrasonic vibrator via a packing. Achieved.
The bottom part of the ultrasonic atomizer of the present invention is not a metal material to reduce thermal stress caused by expansion and contraction due to thermal expansion,
Desirably, it is the same nonmetallic material as the aquarium. Usually, the bottom component is made of a non-metallic material except for the ultrasonic vibrator portion and its fixing means, but the surface of the portion forming the bottom inside the water tank is protected by metal plating or metal foil. Is preferred.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on embodiments. FIG. 3 is a view showing one embodiment of the present invention, and FIG. 4 is an enlarged view near the bottom of the water tank. In the drawing, reference numeral 1 denotes a water tank, 2 denotes a chemical solution cup, 3 denotes an ultrasonic oscillator, 4 denotes an ultrasonic oscillator mounting screw, 5 denotes a bottom member, 6 denotes a bottom member mounting screw, 7 denotes a nut, 8 denotes a heat sink, 9 is packing. The ultrasonic vibrator 3 is attached to the bottom member 5 by an ultrasonic vibrator mounting screw 4 and a nut. The ultrasonic transducer mounting screw 4 is embedded and fixed in the bottom member 5.

An opening is provided at the center of the bottom surface of the water tank 1 so that the projection of the bottom member for attaching the ultrasonic vibrator is fitted. The convex portion of the bottom member has a thickness necessary for embedding a metal ultrasonic vibrator mounting screw, and has a structure in which water leakage from a water tank hardly occurs. The bottom member is integrally formed of resin. In the vicinity of the opening of the water tank, a bolt hole is provided for penetrating the bottom member mounting screw 6 of the bottom member. The bottom member 5 to which the ultrasonic vibrator 3 is fixed is attached to the lower part of the water tank together with the packing 9 and the heat radiating plate 8 as shown in the figure, and is fixed so that water in the water tank does not leak by tightening a nut.

FIG. 5 is a view showing another embodiment of the present invention, and FIG. 6 is an enlarged view of the vicinity of the water tank. In the case of this embodiment, a nut is not used as a fixing means, and a long bolt is used. Therefore, a convex portion is formed on the inner side of the water tank of the bottom member so that the bolt can be sufficiently fixed, and the thickness is reduced. Other than the fact that it is issued, it is the same as the case of FIG.

When the operation of the apparatus of the present invention is disclosed in which water is put in the water tank 1 and the chemical liquid 10 is put in the chemical liquid cup 2, the ultrasonic wave transmitted from the ultrasonic vibrator 3 is transmitted through the water 11 to the lower part of the chemical liquid cup 2. And the inside of the chemical solution 10 is bubbled and atomized. Since a part of the ultrasonic wave is reflected by the lower part of the liquid medicine cup 2, the surface of the bottom member 5 is easily damaged by the reflected wave. Therefore, it is preferable to perform metal plating on the inner surface side of the water tank of the bottom member 5 so as not to absorb such reflected waves. Naturally, a metal foil may be attached instead of plating. In addition, in order to easily release the heat of the water tank, the nut side of the bottom member mounting bolt 6 is shown in FIGS.
As shown in FIG. 6, it is preferable to interpose a radiator plate also serving as a washer.

[0014]

In the device of the present invention, when the bottom member is damaged, only this portion can be easily replaced, so that the life of the entire device can be made longer than before. Also, if the inner surface of the bottom member is coated with metal plating or covered with metal foil, the life of the bottom member itself can be extended.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a conventional ultrasonic atomizer.

FIG. 2 is an enlarged explanatory view of the vicinity of the bottom of the water tank of the apparatus of FIG.

FIG. 3 is an explanatory view showing one embodiment of the device of the present invention.

FIG. 4 is an enlarged explanatory view of the vicinity of the bottom of the water tank of the apparatus of FIG.

FIG. 5 is an explanatory view showing another embodiment of the device of the present invention.

FIG. 6 is an enlarged explanatory view of the vicinity of the bottom of the water tank of the apparatus of FIG. 5;

[Explanation of symbols]

 1. Aquarium 2. Chemical cup 3. Ultrasonic vibrator 4. Ultrasonic vibrator mounting screw 5. Bottom member 6. Bottom member mounting screw 7. Nut 8. Heat sink 9. Packing 10. Chemical solution 11. water

Claims (3)

[Claims] 1. A water tank made of a resin, in which an ultrasonic vibrator is provided at the center of the bottom surface and capable of storing water therein, and a liquid medicine cup fitted into the water tank and for putting a liquid medicine inside. An ultrasonic atomizer, wherein the water tank has an opening in the center of the bottom surface thereof, and a bottom member capable of forming a water tank bottom around the opening is detachably attached to the opening via packing. The ultrasonic atomizer, wherein the ultrasonic vibrator is detachably fixed to the bottom member via a packing. 2. The ultrasonic atomizer according to claim 1, wherein at least a portion of the bottom member other than the ultrasonic vibrator and its fixing means is made of a nonmetallic material. 3. The ultrasonic atomizer according to claim 2, wherein a portion of the non-metallic material inside the water tank that is easily damaged by an ultrasonic reflected wave is protected by metal plating or metal foil. .