JPH0365264A - Spraying device - Google Patents

Abstract

PURPOSE:To prolong the life of electrical-mechanical conversion elements and generate liquid particles of desired character by providing a non-permeable vibration permeable film permeating vibration waves of the electrical-mechanical conversion elements in a position where one zone of a water storage tank forms an interface with an air layer. CONSTITUTION:Electrical-mechanical conversion elements 2 for vibrating liquid in storage tanks 3 and 5 are provided in the water storage tanks, and liquid particles are generated from the liquid surface of said liquid by means of vibration waves generated from the vibration surfaces of elements 2. A non-permeable and vibration permeable film 4 permeating the vibration waves of the elements 2 is provided in a position where liquid storage zones of the water storage tanks 3 and 5 are divided into two storage zones 3a and 5a and at least one of storage zone 5a forms an interface with an air layer in a spraying device 1, and the elements 2 are provided in the other water storage zone 3a. As a result, the life of electrical-mechanical conversion elements can be prolonged, and the liquid elements of desired character can be generated.

Description

[Detailed description of the invention] [Industrial application field] The first aspect of the present invention Liquid particles are generated by high-frequency vibrations (hereinafter referred to as ultrasonic vibrations) generated from the vibration surface of an electro-mechanical transducer. This invention relates to improvements in atomizing devices.

[Prior Art] This type of atomization device generally generates and emits liquid particles with a relatively fine particle size, so it is often used for humidifying rooms, etc., and for moisturizing hair, skin, etc.

Further I: In order to perform humidification and humidification without causing a temperature drop, it is possible to flow preheated liquid into a water storage tank equipped with an electro-mechanical conversion element, or directly heat the liquid within the water storage tank. Techniques for generating liquid particles at a desired temperature are disclosed, for example, in Japanese Utility Model Application No. 62-192136 and Japanese Utility Model Application No. 63-494.
This is proposed in Publication No. 30, etc.

In addition, during the hair perm treatment (9) In order to promote the penetration of the perm liquid into the hair, liquid particles of the perm liquid are generated from the liquid in the water tank to which the perm liquid, etc. has been added, and the particles are sprayed onto the hair. There is.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional atomizing device, since the electro-mechanical transducer is immersed in the liquid to be atomized, there may be inconveniences when using the atomizing device depending on the properties of the liquid. There is a problem.

For example, in the above usage example, the vibrating surface of the electro-mechanical transducer is in direct contact with the heated liquid, so heat is directly transferred to the electro-mechanical transducer, causing early damage to the electro-mechanical transducer. Brother: The vibration of the electro-mechanical transducer may be hindered by solidification of the perm liquid etc. that adheres to the vibrating surface.
This will eventually lead to damage to the electro-mechanical conversion element.

The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to generate liquid particles having desired properties while extending the life of an electro-mechanical conversion element.

[Means for solving the problem] A first invention for achieving the above object (providing an electro-mechanical conversion element in the upper water tank for exciting the liquid in the water tank, In an atomization device that generates liquid particles from the surface of the liquid by vibration waves generated from the vibration surface of the electro-mechanical transducer, a non-permeable wave-transmitting membrane that transmits the vibration waves of the electro-mechanical transducer. is provided at a position where the liquid water storage area of the water storage tank is divided into two water storage areas, and at least one of the water storage areas has an interface with an air layer, and the electro-mechanical conversion element is connected to the other water storage area. It is characterized by being installed in

Also, a second invention (directly the first invention described above) is provided with a heating means for heating the liquid, and is characterized in that the heating means is provided in one of the water storage regions divided by the wave-transmitting membrane. shall be.

[Function] The atomization device of the first invention having the above-mentioned configuration transmits the vibration waves of the electro-mechanical conversion element from the other water storage area where the electro-mechanical conversion element is installed to the one water storage area. The wave permeation membrane transmits the vibration waves of the electro-mechanical transducer, but does not permeate. This prevents the vibrating surface of the electro-mechanical transducer from coming into contact with the liquid in the one storage area.

Further, in the atomizing device 1 of the second invention, which comprises a heating means in the one water storage region of the atomizing device of the first invention, the liquid level of the liquid in the one water storage region heated by the heating means This generates hot liquid particles.

[Example] Next 1: An example of the atomization device according to the present invention will be described based on the drawings. FIG. 1 is a sectional view showing a schematic configuration of an atomizing device 1 according to an embodiment.

As shown in the figure, an opening 1 of a cylindrical lower water tank 3 equipped with an ultrasonic transducer 2 at its lower part.

The upper water tank 5 is fitted and attached with the separation membrane 4 interposed, and the side surface 1 of the upper water tank 5 is a blower 7 that blows air into the interior from the air outlet 6, and a liquid that is carried by the air flow from the air outlet 8. A flexible blow-off hose 9 for blowing out particles is provided.

Furthermore, in the upper water tank 5 (position 1 facing the ultrasonic transducer 2 above), a cup-shaped particle collector 11 with a liquid particle outlet 10 perforated on the side is installed on a support with its opening facing downward. 11a, and the opening of the particle collector 11 is connected to shielding walls 11b and 11C that divide the inside of the upper water tank S into upper and lower parts.
is fixed. A heater 12 is installed in the upper water tank 5 at a position 1.1 submerged in the supplied liquid. Low Air blower 7 (
It is composed of a motor 13 and a fan 14 that rotates integrally with its rotating shaft.

A lower water storage area 3a surrounded by a lower water tank 3 and a separation membrane 4 is filled with plain water to which no chemicals such as perm liquid or aromatic liquid are added, and an upper water tank 5 with the separation membrane 4 as the bottom surface. Water to which a desired liquid, for example a perm liquid, has been added is appropriately supplied to the upper water storage area 5a from a water supply container (not shown) attached to the upper water tank 5.

A separation membrane 4 (approximately 0.1 to 0.3 nvn) separates the liquid (water) in the lower water storage area 3a and the liquid in the upper water storage area 5a.
It is a non-permeable thin film made of silicone rubber having a uniform thickness of , and allows vibration waves generated from the vibration surface of the ultrasonic vibrator 2 to pass through to the liquid in the upper water tank 5. Abnormal heating of the vinegar heater 12 In order to avoid insufficient water volume in the upper water storage area 5a, a water temperature sensor and a water level sensor (not shown) are installed in the upper water tank 5. In addition to these sensors, the ultrasonic transducers 2. Heater 12. The motor 13 of the blower 7 is connected to a control device 15 installed in the lower water tank 3, and is driven and controlled by the control device 15.

Next, the operation of the atomizing device 1 having the above configuration will be explained.

When the ultrasonic vibrator 2 is energized, the ultrasonic vibrator 4 vibrates ultrasonically, and the vibration waves (water in the lower water storage area 3a reach the liquid in the upper water storage area 5a via the separation membrane 4.
Due to this ultrasonic vibration, liquid particles (such as
After being collected inside the two particle collector 11 as shown in the figure,
The liquid particles exit from the outlet 10 into the upper water tank 5 and ride the air flow generated by the rotation of the fan 14 of the blower 7.
It is blown out from a flexible blow-off hose 9.

At this time, by supplying electricity to the heater 12 and heating the liquid in the upper water storage area 5a to a desired temperature, liquid particles at the desired temperature can be blown out from the blowing hose 9. Since the perm liquid is added in advance to the liquid in the upper water storage area 5a, the perm liquid in the form of fine particles can be uniformly and quickly adhered to and penetrated into the hair.

Furthermore, when the atomizing device 1 is used as a humidifier, it is preferable to add an aromatic liquid instead of a perm liquid (L).The fine particle aromatic liquid can be distributed to every corner of the room, etc., which is preferable.

In this way 1: When the atomizing device 1 of this embodiment generates liquid particles at a desired temperature, perm liquid bubbles, liquid particles added with a desired chemical such as a fragrance liquid agent, etc. 1:.

Since the vibration surface of the ultrasonic transducer 2 does not come into contact with heated liquid or medicine, direct heat transfer to the ultrasonic transducer 2, adhesion of medicine, etc. can be avoided.

As a result, it becomes possible to generate liquid particles with desired properties (desired temperature, desired chemical addition, etc.) while protecting and extending the life of the ultrasonic transducer 2.

In addition, since the particle collector 11 is provided at a position where liquid particles are generated, liquid particles with a large particle size collide with the inner wall of the particle collector 11, become water droplets, and fall into the water storage basin 5a. Only small liquid particles can be blown out.Moreover, the inside of the upper water tank 5 is covered with shielding walls 11b and 14c.
Since the liquid particles generated from the water surface are sent into the particle collector 11 along with the airflow generated by the blower 7 in the divided lower area, the frequency of collisions of liquid particles on the inner wall of the particle collector 11 increases. , the particle size of the liquid particles blown out from the liquid particle outlet 10 can be made even smaller.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments in any way, and it goes without saying that the present invention can be implemented in various forms without departing from the spirit thereof.

Example 1. As shown in FIG. 2, the ring-shaped frame 4b to which the separation membrane 4a is attached is inserted into the fitting hole 5C drilled in the water tank separation wall 5b at a position facing the ultrasonic transducer 2a. The main parts of the atomizing device 20 can also be configured by fitting, mating, and fixing. With such a configuration, in addition to the above-mentioned effects of extending the life of the ultrasonic transducer, it becomes possible to easily restore the separation membrane 4a if it is damaged.

Of course, the separation membrane may also be formed from latex rubber or the like. In this case, the separation membrane transmits vibrations to the same degree as the liquid in the lower water storage area 3a and the upper water storage area 5a. be able to.

4. As described above in detail including the embodiments, 1: The atomization device according to the first invention provides a non-permeable wave-transmitting membrane that transmits vibration waves of an electro-mechanical conversion element. The water storage area is divided into two water storage areas, one and the other, and the vibration wave of the electro-mechanical conversion element is transmitted from the liquid in the other water storage area where the electro-mechanical conversion element is installed to the interface with the air layer. Since the wave is transmitted through the wave permeable membrane to the liquid in the one water storage area, the vibration surface of the electro-mechanical transducer does not come into contact with the liquid in the one water storage area. Liquid particles having the same properties as the above can be generated from the above-mentioned abrasion, that is, from the liquid surface.

Therefore, even if the liquid in one of the water storage areas is at a desired temperature or a liquid containing a desired drug, electricity
Direct heat transfer to the vibration surface of the mechanical transducer element and adhesion of chemicals can be avoided.

As a result, while trying to extend the life of the electro-mechanical conversion element,
It becomes possible to generate liquid particles with various desired properties.

Moreover, according to the electrification device according to the second invention (L), it is possible to generate liquid particles at a desired temperature while protecting and extending the life of the electro-mechanical conversion element.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG.
FIG. 2 is an explanatory diagram for explaining the main parts of the atomizing device 20 of another embodiment.

Claims (1)

[Claims] 1. Electricity in the water tank for exciting the liquid in the water tank.
In an atomization device that includes a mechanical transducer and generates liquid particles from the liquid surface of the liquid by vibration waves generated from the vibration surface of the electro-mechanical transducer, a permeable wave permeable membrane is provided at a position such that the liquid storage region of the water reservoir is divided into two water storage regions, and at least one of the water storage regions has an interface with an air layer; An atomizing device characterized in that an element is installed in the other water storage area. 2. The atomization device according to claim 1, wherein the one water storage area divided by the wave permeable membrane is provided with heating means for heating the liquid in the area.