JPH08215308A - Liquid evaporator - Google Patents

Abstract

PURPOSE: To provide a liquid evaporator which prevents the excessive consumption of liquid and reduces electric power consumption without degrading evaporation performance as a liquid evaporator which evaporates the liquid, for example, insecticide and aromatic by using ultrasonic waves and for which the ultrasonic waves are used. CONSTITUTION: This liquid evaporator is composed of a container 1, the liquid 2, a bar-shaped liquid absorbent 3, a core supporting body 4, a piezoelectric substance 5, a ceramic piece 6, an ultrasonic oscillator 7, a power source section 8 and a supporting body 9. The piezoelectric substance 5 is joined to the ceramic piece 6 and is tightly adhered to the top end of the liquid absorbent 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic liquid vaporizer which absorbs insecticides and fragrances by means of ultrasonic waves with a liquid absorbent and evaporates them.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a liquid evaporation device of this type has a container 11 for containing a liquid 10 such as a drug and a hollow disk type core support fitted in an opening at the upper end of the container 11. The body 13 and the liquid-wicking core in which the liquid 10 in the container 11 is pressed into the hollow portion of the core support 13 in a press-fit state so that the lower end is immersed in the liquid 10 and the upper end is exposed from the container 11. 12, an ultrasonic oscillator 14 arranged so as to be close to the upper end of the liquid absorbent core 12 without contacting it, an ultrasonic oscillator 15 connected to the oscillator 14, an oscillator 14, and an oscillator. It is comprised by the support stand 16 which supports 15. With this configuration, the liquid 10 in the container 11 is absorbed by the liquid absorbing core 12 formed of a material having a large surface tension such as felt or sponge, and a signal is sent from the oscillator 15 to the vibrator 14 while being sufficiently sent to the upper end. The vibrator 14 having a horn structure is ultrasonically vibrated. As a result, ultrasonic vibration energy equal to or higher than the surface tension of the liquid 10 is applied to the upper end portion of the liquid absorbent core 12, and the liquid 10 is absorbed into the liquid absorbent core 1.
It is possible to discharge the droplets to the outside air as finer droplets.

[0003]

However, according to such a structure, since the liquid is sent to the upper end of the wick more than necessary due to the suction function of the liquid wick itself, the liquid consumption becomes excessive. At the same time, there is a problem that the liquid overflows to the outside when the container is accidentally tumbled. Further, since the liquid is discharged from the upper end of the liquid absorption core by the ultrasonic vibration energy equal to or more than the surface tension of the liquid, the ultrasonic vibrator requires a horn structure, which consumes more energy than necessary and There were problems such as complicated connection with the liquid absorption core and control of the vibrator itself.

The present invention is intended to solve the above problems, and an object thereof is to provide a liquid evaporation device having a simple structure.

[0005]

In order to achieve the above object, the present invention is mainly composed of a carbonaceous fine powder in which a lower part is immersed in a liquid in a container and an upper end is directly or indirectly brought into contact with a vibrator. The rod-shaped molded body made of a mixture of the binder and the binder is used as the liquid absorbent, and the ultrasonic wave generated by the ultrasonic oscillator is transmitted to the liquid absorbent through the vibrator.
The liquid absorption here exhibits a liquid suction function only when an ultrasonic wave is applied, and functions as a liquid-tight plug when no ultrasonic wave is applied. Further, when the vibrator is indirectly contacted with the upper end of the liquid absorbent, a metal or ceramic joining piece is arranged between the two and used.

[0006]

According to the present invention, the ultrasonic vibrator is brought into direct contact with the upper end portion of the liquid absorbent, or a metal or ceramic bonding piece is disposed between the vibrator and the liquid absorbent so as to be in contact with each other. Therefore, not only the liquid is sucked up and evaporated by the ultrasonic vibration of the absorbing liquid, but also the liquid can be evaporated by the heat generated by the friction between the vibrator or the joining piece and the absorbing liquid, so that the ultrasonic vibration energy to be applied can be effectively applied. Available.

[0007] Further, since the liquid absorption is constituted by a rod-shaped molded body composed mainly of carbonaceous fine powder and a mixture of this and a binder, the carbonaceous fine powder is obtained only when ultrasonic vibration is applied. There is a liquid pumping path between the particles, and the above path is closed when no vibration is applied, and the liquid absorption itself has rigidity and acts as a liquid-tight plug at the opening of the container to gently absorb and suck up the liquid. Therefore, it is possible to prevent liquid leakage when the container falls. Further, since the suction is not performed except when the liquid is evaporated, it is possible to prevent waste.

[0008]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a vertical cross-sectional view of an ultrasonic liquid evaporation apparatus according to this embodiment, FIG. 2 is a block diagram of an ultrasonic oscillator, and FIG. 3 shows a vibrator and an upper end of a liquid absorbent in this embodiment. It is a front view of a joining example and a perspective view of a vibrator.

In FIG. 1, 1 is a container for holding a liquid,
2 is water as a liquid, 3 is a liquid absorbing material made of a mixture of 80% by weight of carbon-based fine powder and 20% by weight of a binder and formed into a rod shape having a diameter of 7 mm and a length of 70 mm, and 4 supports the liquid absorbing material 3. In order to do this, the diameter of the hollow portion that is fitted in the opening of the container 1 in a liquid-tight manner is 6.
8 mm hollow disk type core support, 5 a piezoelectric body as a vibrator having a diameter of 8 mm, 6 a ceramic piece as a joining piece in which fixing legs are provided on a disk having a diameter of 8 mm, 7 an ultrasonic oscillator,
Reference numeral 8 is a battery as a power source, and 9 is a support base for supporting the oscillator 7.

The operation of the ultrasonic type liquid evaporation device having the above-described structure will be described below.

As shown in FIG. 2, a reference oscillation is generated in the oscillator 7 by using the battery 8 as a driving source, amplified in the drive stage,
An electric signal is sent from the output stage to the piezoelectric body 5, which is a vibrator, to vibrate the piezoelectric body 5. This vibration is magnified by the ceramic piece 6 that is joined to the piezoelectric body 5, and is sent to the liquid absorbent 3 that is in surface contact with it at a frequency of 38 to 42 kHz to promote the suction of the water 2 of the rod-shaped liquid absorbent 3, 2 is sent to the upper end of the liquid absorbent 3. At the same time, heat is generated due to friction at the contact portion between the ceramic piece 6 and the liquid absorbent 3. By this heat and vibration of ultrasonic waves, the water sent to the contact portion with the ceramic piece was evaporated at a rate of about 0.14 cc per hour and could be released to the outside air.

Incidentally, various examples of the joining piece will be given in FIG. A is a pushpin type and is an example in which the joining piece is formed in a pushpin shape and is pierced and fixed to the upper end of the liquid absorbent. B is a sandwich type, in which an eight-legged leg is formed on the joining piece, and the liquid absorbent is sandwiched and fixed by this leg. C is a cover type, in which a leg having four cylinders having the same diameter of the absorbing liquid as the inner diameter is divided into four parts is formed on the joining piece, and the absorbing liquid is covered and fixed by the legs. D, E, F are the perspective views. In this embodiment, the ceramic piece is used as the joining piece, but the same effect can be obtained with the metal piece.

In this embodiment, the case of evaporating water has been described. However, liquid fragrances and insecticides can be evaporated, and an AC power source may be used for the power source section.

[0015]

As described above, according to the present invention, the vibrator is brought into close contact with the upper end portion of the liquid absorbent, and ultrasonic vibration and friction heat generated at the close contact portion between the upper end portion of the liquid absorbent and the vibrator due to this vibration are generated. Can be used to evaporate the liquid.

Further, since a piezoelectric body as an ultrasonic vibrator is brought into contact with the upper part of the liquid absorbent directly or through a joining piece, the liquid is evaporated by the frictional heat generated by the friction between the vibrator and the liquid absorbent. It becomes possible to realize an excellent liquid evaporation device by making it possible to simplify the connection between the vibrator and the liquid absorption and the control of the vibrator and reduce the power consumption.

Further, by using carbonaceous fine powder and a binder as the material of the liquid absorbent, it is normally in a closed state, has a pumping path between the particles of the carbonaceous powder, and becomes a rigid liquid absorbent. The liquid is gently absorbed by the liquid absorbent, the liquid does not overflow to the outside even when the container is turned over, and excessive consumption of the liquid can be prevented.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a liquid evaporation device according to an embodiment of the present invention.

FIG. 2 is a block diagram of an ultrasonic oscillator according to an embodiment of the present invention.

FIG. 3 (A) is a front view showing an example of joining the vibrator and the upper end of the liquid absorbing liquid according to the present invention (B) is a front view showing an example of joining the vibrator and the upper end of the liquid absorbing part according to the present invention (C) (D) Perspective view showing the vibrator and the joining piece (E) Perspective view showing the vibrator and the joining piece (F) Perspective view

FIG. 4 is a vertical sectional view of a conventional liquid evaporation device.

[Explanation of symbols]

 1 Container 2 Liquid 3 Liquid Absorbing 4 Core Support 5 Piezoelectric Body 6 Bonding Piece 7 Oscillator 8 Power Supply Section 9 Support Stand

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication location B06B 3/00 B06B 3/00 (72) Inventor Toshiaki Miyamoto Koyamazuka, Oiwa-cho, Toyohashi City, Aichi Prefecture Address 20 Inside Honda Electronics Co., Ltd. (72) Inventor Shunsuke Honda 20 Oyamazuka, Oiwa Town, Toyohashi City, Aichi Prefecture 20 Address Honda Electronics Inc. (72) Takeshi Yamamoto 20 Oyamazuka, Oiwa Town, Toyohashi City, Aichi Prefecture Address Honda Electronics Co., Ltd.

Claims (3)

[Claims] 1. A rod-shaped molded body comprising a container containing a liquid therein and a mixture of carbonaceous fine powder and a binder as a main component, the container being liquid-tightly attached to a container opening and having a lower portion. An absorbing liquid that is immersed in the liquid inside and sucks up the liquid to the upper end, an ultrasonic vibrator that directly or indirectly contacts the upper end of the absorbing liquid, and an ultrasonic oscillator that oscillates ultrasonic waves and transmits the ultrasonic wave to the vibrator. A liquid evaporation device including a sound wave oscillator. 2. The liquid evaporation device according to claim 1, further comprising a metal or ceramic joining piece disposed between the upper end of the liquid absorbent and the ultrasonic vibrator. 3. The liquid evaporating apparatus according to claim 1, wherein the absorbing liquid sucks the liquid from a lower portion to an upper end portion when an ultrasonic wave is applied.