JPH02135168A - Ultrasonic atomizer - Google Patents

Abstract

PURPOSE:To stably atomize a liq. by providing a rigid water absorptive body consisting of a hydrophilic plastic porous body and an ultrasonic vibrator to the title atomizer and pressing the vibrator elastically on the water absorptive body through an elastic body. CONSTITUTION:The atomizer is provided with the ultrasonic vibrator 1 consisting of an electrostrictive element 14 for producing a vibration and a metallic phone 15 for magnifying the vibration. The rigid water absorptive body 53 consisting of a hydrophilic plastic porous body is also provided, and the vibrator 1 is pressed on the water absorptive body 53 through an O ring of the elastic body 51. When a power source switch 10 is turned on, an ultrasonic vibration is produced from the element 14, the phone 15 is simultaneously vibrated, and an atomization surface 62 at the tip of the phone is violently vibrated by the amplitude magnifying action of the phone 15. Meanwhile, water is supplied to the tip of the water absorptive body 53 from a first chemical tank 20 by capillarity, the supplied liq. is supplied onto the atomization surface 62, and the water is atomized by the vibrational energy of the vibrator 1 and injected.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a method of flooding a metal horn with an atomized liquid in an ultrasonic spraying device that utilizes ultrasonic vibration [Prior Art] Conventionally, this type of ultrasonic As a sonic spray device, the Special Publication No. 58-3
No. 2618, Japanese Unexamined Patent Publication No. 58-61861, etc. have been proposed. In these conventional flood systems, felt or the like is used as a water absorber, and water is sucked up and supplied from the bottom of a metal horn.

[Problems to be Solved by the Invention] However, since the water absorbing body is formed of felt or the like as in the past, when tap water is used, it may change color or become stained in a short period of time. Furthermore, since it is difficult to dry, there is a possibility that bacteria may grow when used for a long period of time, making it unhygienic. Also, regarding contact with the ultrasonic transducer,
There is a problem in that the end surfaces of water absorbing materials such as felt are incompletely treated, and there is a high risk that accurate fine spraying cannot be achieved due to fuzzing and the like.

The present invention was invented in view of the above-mentioned conventional problems, and its purpose is to achieve stable fine spraying, ease of use, and sanitary aspects by using a wood-loving plastic porous body as a water absorbent. An object of the present invention is to provide an ultrasonic spraying device that can be expected to improve performance.

[Means for Solving the Problems] In order to achieve the above object, the ultrasonic spraying device of the present invention includes a rigid water absorbing body 53 made of a hydrophilic plastic porous body derived from the chemical liquid tank 2 and an ultrasonic vibrator. 1, and the ultrasonic transducer 1 and the water absorbing body 53 are configured to elastically abut with an elastic body 51.

In addition, a first
It can also be configured by a chemical liquid tank 20 and a second chemical liquid tank 56 which is detachably attached to the first chemical liquid tank 20 and which supplies water to the first chemical liquid tank 20.

Furthermore, a water absorbent body 53 made of a hydrophilic plastic porous body
The cross-sectional area may be formed to change along the water supply direction.

[Function] In the present invention, the liquid (hereinafter simply referred to as water) absorbed by the rigid water absorbing body 53 made of a hydrophilic plastic porous body is atomized by the vibration of the ultrasonic transducer 1, and this atomization is When inhaled into the nasal cavity or oral cavity, it moistens the mucous membranes, calms the dry state of the mucous membranes, and relieves inflammation.

By using a rigid water absorbent body 53 made of a hydrophilic plastic porous material, the contact end surface of the water absorbent body 53 is stabilized.
It has now become possible to make it more hygienic, and it has also become more hygienic.

[Examples] The present invention will be described in detail below based on examples shown in the accompanying drawings.

As shown in FIG. 2, a printed wiring board 16 on which an oscillation circuit section and a power switch 10 are mounted is built into the device housing 3 formed of a synthetic resin molded product, and a power supply section 11 is provided below the printed wiring board 16. It is. The power supply section 11 is of a two-power supply type, and can be used as a power source by storing a dry cell battery 12, or can be connected to a jack to use an external AC power source as a power source. The ultrasonic vibrator 1 is composed of an electrostrictive element 14 that generates vibrations and a metal horn 15 that magnifies the vibrations. 14 is supplied with power by power supply #i50.

An annular groove 17 is provided on the outer periphery of the metal horn 15, and the metal horn 15 is press-fitted into a horn holding frame 52 via an O-ring constituting an elastic body 51. Further, a tapered chamfered portion 31 is formed on the outer periphery of the tip of the metal horn 15 of the ultrasonic transducer 1. The chemical liquid tank 2 includes a first chemical liquid tank 20 fixed to the VC housing 3 and a second chemical liquid tank 20 that is detachably attached to the first chemical liquid tank 20 and for supplying water to the first chemical liquid tank 20.
It is composed of a chemical liquid tank 56. Here, the first chemical liquid tank 20 is a fixed tank that is fixed to the device housing 3 so that it cannot be easily removed. A water absorbing body 53 made of a hydrophilic plastic porous body is press-fitted into the first chemical liquid tank 20 which is this fixed tank, and this water absorbing body 53 is configured to supply water to the ultrasonic transducer 1. ing. Here, as the hydrophilic plastic porous body constituting the water absorbing body 53, for example, Sunfine AQ, a trade name manufactured by Asahi Kasei Industries, Ltd., can be used. Further, a pressure adjustment section 54 is provided at the bottom of the first chemical liquid tank 20 to adjust the pressure inside the tank during spraying. Moreover, a four part 55 is provided at the upper part of the first chemical liquid tank 20, and a fitting protrusion 56a of a second chemical liquid tank 56 for supplying water to the first chemical liquid tank 20 is attached to and detached from the recessed part 55. It can be fitted freely.

Here, an O ring 57 is provided on the outer periphery of the fitting protrusion 56a of the second chemical liquid tank 56.
6a is fitted into the recess 55, the connection is made in a hermetically sealed manner, and in this case, the first chemical tank 20
A valve 58 provided in the second chemical tank 56 is operated by a protrusion 55a provided at the bottom of the recess 55, and water is supplied from a hole (not shown) provided in the fourth portion 55. As a result, when it is necessary to supply water to the first chemical tank 20, the @2 chemical tank 56 can be removed and water can be supplied.In this way, only the second chemical tank 56 can be removed and water can be supplied, so that the device housing can be supplied with water. The contact positional relationship between the ultrasonic transducer 1 and the water absorbing body 53 fixed to the first chemical liquid tank 20 fixed to the first chemical tank 20 is always constant, and stable spraying is guaranteed.

FIG. 3 is an enlarged sectional view showing how the ultrasonic transducer 1 is attached to the housing. As shown in FIG. 3, the ultrasonic vibrator 1 is press-fitted into a horn holding frame 52 via an elastic O-ring constituting an elastic body 51.

Here, the ultrasonic transducer 1 is supported only by the O-ring constituting the elastic body 51, and the vibration loss of the ultrasonic transducer 1 is kept to a minimum. Furthermore, the elasticity of the ring constituting the elastic body 51 makes it possible to easily adjust the position of the ultrasonic transducer 1 to some extent. Then, the horn holding frame 5 holding the ultrasonic transducer 1 as described above is installed.
2 is an attachment method by screwing a male threaded portion 59 provided on the outer periphery to a female threaded portion 59a provided on the housing 3. Here, a pressurizing spring 6o is interposed between the horn holding frame 52 and the device housing 1 to prevent rattling when the horn holding frame 52 is screwed into the device housing 3. Therefore, during assembly, the positions 1111 of the ultrasonic transducer 1 and the water absorbing body 53 can be aligned by rotating the horn holding frame 52. Here, the water absorbing body 53 and the ultrasonic transducer 1
The ultrasonic transducer 1 is brought into elastic contact with the water absorbing body 53 by an O-ring, which is an elastic body 51. In this case, as shown in FIG. A tapered hole 61 is provided in the water absorbent body 53 so as to be in contact with the tapered chamfered portion 31 provided at the tip of the water absorbent body 53 on the entire circumference. The tapered chamfered portion 31 of the horn 15 comes into contact with the entire circumference, and water is uniformly supplied to the atomization surface 62 on the tip surface of the metal horn 15, making it possible to spray from the entire surface of the atomization surface 62. Efficiency is improved compared to conventional products, making it possible to save energy.

FIG. 4 shows various water absorbers 53 having different shapes. That is, the water absorbing body 53 can have any shape such as a uniform cross-sectional shape, a constricted end shape, a constricted shape in the thickness direction, etc. as shown in FIG. 4, and the water supply transmission force can be adjusted. That is, in FIG. 4(,), the shape of the water absorbing body 53 made of a hydrophilic plastic porous body is made to have a uniform cross-sectional shape without changing in the water supply direction, but in FIGS. 4(b) and (c).
When the cross-sectional shape in the water supply direction is changed as shown in (d), (e), and (f) (i.e., Fig. 4 (b), (d), (e),
It is possible to change the water flow cross section by making the tip thinner (or by providing a gate in the middle as shown in Figure 4 (c)), as shown in (f), and changing the water supply capacity. will be possible.

When the power switch 10 is turned on, a high frequency voltage having a frequency approximately equal to the mechanical resonance frequency of the metal horn 15 generated by the oscillation circuit ff1s9 is supplied to the
The ultrasonic vibrations applied to the electrostrictive cable 14 by the electrostrictive cable 14 and generated by the electrostrictive element 14 vibrate together with the metal horn 15, causing the atomization surface 62 at the tip of the metal horn 15 to
The vibration is caused to vibrate greatly by the amplitude expansion effect of step 5. On the other hand, water is guided to the water absorbing body 53 up to its tip by the first chemical tank 20 by capillary action, and this guided water is supplied to the n north face 62 of the metal horn 15 and is atomized by ultrasonic vibration energy. It is squirted. Further, in the steady atomizing state, the metal horn 15 continuously atomizes, and the water in the $1 chemical tank 20 decreases. For this reason,! Water is replenished from the chemical tank 56 of lS2 to the chemical tank 20 of PIrJl, and the pressure inside the tank is adjusted to a constant state by the action of the pressure regulator 54. Here, when the spraying is finished and water supply is required, Pt52
It is only necessary to remove the chemical solution tank 56, supply water, and set it again, and there is no need to touch the water absorbent body 53, which is very sanitary.

Fig. 5 shows a circuit diagram of the ultrasonic spray device, and when an external AC power adapter is connected to the shank 13, the switch 8 is switched and the battery circuit is opened, allowing the use of household AC power. It is now possible to do so.

[Effects of the Invention] As described above, the present invention includes a rigid water absorbent made of a hydrophilic plastic porous body derived from a chemical solution tank and an ultrasonic vibrator, and the ultrasonic vibrator and the water absorbent Since they are in elastic contact with each other using an elastic body, a water absorbent body made of a rigid hydrophilic plastic porous body can form a water absorbent body with a stable contact end surface, and fine spray can be made stably. Also, from a sanitary perspective, it has the advantage of being able to provide a more hygienic water absorbent material than fibrous materials such as felt.

In addition, since the chemical tank is composed of a first chemical tank fixed to the device housing and a second chemical tank that is detachable from the first chemical tank and for supplying water to the first chemical tank, It is possible to improve the contact stability between the sonic vibrator and the water absorbing body, realize stable spraying, and improve usability compared to supplying water only from the second chemical tank. In other words, hydrophilic plastics that have rigidity require a separate elastic body to be provided, rather than elastic abutment due to the flexure of the water absorbent body itself, as with flexible water absorbent bodies such as felt. Therefore, if this elastic contact force is too weak, the spray will become unstable, and if it is too strong, the vibration of the ultrasonic vibrator will be inhibited and the spray efficiency will decrease. strictly determine,
Although it is necessary to maintain this state, the above problem can be solved by configuring the chemical tank with the first chemical tank and the PJS2 chemical tank and fixing the PISi chemical tank to the device housing. It is possible.

In addition, since the cross-sectional area of the water absorbing body made of a porous hydrophilic plastic body is formed so as to change along the water supply direction, the shape of the hydrophilic plastic can be made narrower toward the tip or with a dent in the middle. By doing so, the water flow cross section can be changed to change the water supply capacity, and it is possible to adjust excessive water supply at the tip and the amount of spray.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of the present invention, FIG. 2 is a sectional view of the same as above,
Figure 13 is an enlarged sectional view of the part where the ultrasonic transducer is attached, and Figures 4 (a), (b), (c), (d), (e) and (f) are perspective views of examples of various shapes of water absorbers. 5 are circuit diagrams of the present invention, in which 1 is an ultrasonic transducer, 2 is a chemical liquid tank, 3 is a device housing, 20 is a first chemical liquid tank, 53 is a water absorbing body, and 56 is a second chemical liquid tank. It is a chemical tank. Figure 1 Agent Patent Attorney Ishi 1) Ai 7 (d) Figure 5

Claims (3)

[Claims] (1) Equipped with a rigid water absorbing body made of a hydrophilic plastic porous body derived from a chemical liquid tank and an ultrasonic vibrator, and the ultrasonic vibrator and the water absorbing body are elastically abutted by an elastic body. An ultrasonic spray device featuring: (2) The chemical tank is composed of a first chemical tank fixed to the device housing and a second chemical tank that is detachable from the first chemical tank and is used to supply water to the first chemical tank. The ultrasonic spray device according to claim 1, characterized in that: (3) The ultrasonic spray device according to claim 1, characterized in that the water absorbing body made of a hydrophilic plastic porous body is formed so that the cross-sectional area thereof changes along the water supply direction.