JPS6335825Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ultrasonic atomizing device, and more particularly, to an ultrasonic atomizing device that atomizes liquids such as water, petroleum, chemicals, etc. using ultrasonic vibrations.

Ultrasonic spray devices can be used, for example, to exterminate indoor mosquitoes by spraying liquid insecticides, but this is different from commercially available electric devices that evaporate active ingredients using electric heating elements. Since it does not use heat like mosquito repellents, there is no need to worry about burns or fires, and the insecticidal ingredients are unstable to heat and have different transpiration temperatures.
There are various advantages when spraying insecticidal ingredients of more than one species.

As shown in FIG. 1, such an ultrasonic spraying device conventionally includes a porous material such as a sponge or a synthetic resin at the tip of a vibrating horn 2 that vibrates ultrasonically using an ultrasonic vibrator 1. foam member,
Alternatively, the above method can be carried out by attaching a fog generating member 3 having a capillary phenomenon such as cotton cloth or gauze, and bringing one end of a liquid supply wick 4 having a capillary phenomenon into contact with the fog generating member 3, and dipping the other end in the liquid 5. Liquid supply core 4
The liquid is supplied to the mist generating member 3 via the ultrasonic transducer 1, and the mist generating member 3 is vibrated via the horn 2 by the ultrasonic vibrator 1, so that the liquid adhering to the mist generating member 3 is atomized. It is configured. The ultrasonic transducer 1 has electrodes 6 fixed on both sides,
Plug 9 from the AC voltage AC100V of the commercial power supply to 7.
It is designed to operate by applying a desired operating voltage formed through a transformer 10 and a rectifier circuit 11. When using an ultrasonic spray device configured in this way to atomize insecticide liquid to exterminate indoor mosquitoes, it is necessary to constantly atomize a very small amount of insecticide for safety reasons. Yes, and for this reason, for example,
When the concentration of insecticidal ingredients is 10% by weight, it is 30 to 50
The amount of spraying is preferably mg/H, and when a very small amount of insecticide liquid is atomized in a fixed amount for a long period of time, such as 10 to 12 hours, the connection between the vibrating horn 2 and the fog generating member 3 The contact part between the mist generating member 3 and the liquid supply wick 4 may easily come off, or the contact pressure or contact position may change, making it impossible to spray sufficiently, or the amount of atomization may change. It has drawbacks such as the particle size of the mist changing, so it is not very suitable for atomizing extremely small amounts of liquid such as those used in insecticides.

The purpose of the present invention is to form a groove at the tip of the vibrating horn, fix a fog generating member 3 made of a porous material, etc. to the groove, and position it on the side surface of the vibrating horn, in order to eliminate the above-mentioned conventional drawbacks. The liquid supply member is brought into contact with the mist generating member to be easily removed by vibration.
An object of the present invention is to provide an ultrasonic atomizer in which the amount of atomization and particle diameter do not change even when the contact pressure or position changes.

Hereinafter, the present invention will be explained with reference to illustrated embodiments.
In the ultrasonic spraying device of the present invention shown in FIGS. 2a, b, and c, a groove 2b is formed in the vertical direction in the protruding tip 2a of the ultrasonic vibration horn 2, and a mist made of a porous material is formed in the groove. The generating member 30 is fixed. As shown in FIG. 2c in detail, this groove 2b is formed in an inverted U-shape when the horn 2 is viewed from the side, and is located at the center of the tip of the horn 2.
A fog generating member 30 is fixed therein, and both ends of the fog generating member 30 extend to the middle of the protruding horn 2 and are arranged so as to be located on the side surfaces of the horn 2. The upper end of the liquid supply member 4 having capillary action is in contact with the lower end of the mist generating member 30 which is disposed to extend to the side surface of the horn 2 . Note that the other configurations are the same as those shown in FIG. 1, so the same reference numerals are given and the explanation thereof will be omitted.

In the structure as described above, the fog generating member 30 made of a porous material is fixed so as to be inserted into the groove 2b formed at the tip of the horn 2, so that the ultrasonic vibrator 1 prevents the fog generating member 30 from being easily removed and displaced even if the horn 2 vibrates. Moreover, since this groove 2b is formed in an inverted U-shape, and its end extends to the side surface of the horn 2, the fog generating member is inserted and fixed in this groove 2b. The end portion of the horn 30 is also disposed so as to extend along the groove 2b to the side surface of the horn 2. Generally, the vibrating horn 2 is designed so that the stress is maximum at its tip, and the above-mentioned side surface of the horn 2 near the middle is a node of vibration and has relatively little vibration. ing. Therefore, as described above, the upper end of the liquid supply member 4 comes into contact with the mist generating member 30 extending to the side surface near the middle of the horn 2, thereby supplying liquid using capillary action. Then, since the contact position between the two is a place where the vibration of the horn 2 is relatively low, even if there is a contact failure, that is, the contact pressure or contact position changes, the amount of atomization and particles will hardly change and the atomization will be uniform. This allows for constant spraying.

Note that the liquid supply core having capillary action, that is, the liquid supply member 4 for supplying a very small amount of liquid,
For example, it is made of a bundle of multiple thin fibers, etc., and it needs to be quite thin.It can be reinforced by passing it between plastic tubes, etc.For example, it can be reinforced by passing it between plastic tubes. It can also be easily fixed by sandwiching the members and heat-sealing them.

[Brief explanation of the drawing]

FIG. 1 is a general configuration diagram of a conventional ultrasonic spraying device, and FIGS. 2a, b, and c are perspective views and front views of a vibrating spray section of an ultrasonic spraying device showing an embodiment of the present invention, respectively. FIG. 1... Ultrasonic vibrator, 2... Vibration horn, 3,
30... Fog generation member (porous body), 4... Liquid supply member, 5... Liquid, 6, 7... Electrode, 8... Ultrasonic generation circuit, 10... Transformer, 11... Rectifier circuit , 2b...groove.

Claims (1)

[Scope of utility model registration request] A fog generating member having a capillary phenomenon such as a porous body is attached to the tip of a vibrating horn that vibrates ultrasonically by being driven by an ultrasonic vibrator, and a liquid is supplied to the fog generating member via a liquid supply member, In an ultrasonic spraying device that sprays a liquid by ultrasonically vibrating a fog generating member with an ultrasonic vibrator via the vibrating horn, a groove is formed at the tip of the vibrating horn, and a groove is formed in the tip of the vibrating horn. An ultrasonic spraying device characterized in that a fog generating member is fixed, and the liquid supplying member is configured to contact the fog generating member located on a side surface of a vibrating horn to supply liquid.