JPS641022Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic atomizer that atomizes liquid using ultrasonic energy, and particularly relates to an ultrasonic atomizer equipped with a device for preventing the sound of droplets falling.

Generally, in an ultrasonic atomizer that atomizes liquid using ultrasonic energy, an ultrasonic vibrator is vibrated by a circuit, and the vibration forms an ultrasonic liquid column in the liquid inside the main body. Fine particles of atomized liquid are ejected from the surface of this liquid column into the atomization chamber.

By the way, the ultrasonic liquid column does not always have a fixed shape; it constantly deforms and splits, and some of it becomes large droplets that fall inside the atomization chamber. When it falls, a falling sound is produced. Although this falling sound is not a loud sound, it is a relatively harsh sound that can be heard by human ears.

The present invention has been made in view of the above points, and is a droplet receiver in an ultrasonic atomizer, in which a hole is provided at the bottom of a cylinder surrounding a liquid column rising on the liquid surface, through which the liquid column passes. A plate is attached, and this droplet receiving plate prevents droplets from falling directly onto the liquid surface, thereby preventing the generation of harsh falling sounds.

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

Fig. 1 is a sectional view of an ultrasonic humidifier which is an example of an ultrasonic atomizer according to the present invention, and Fig. 2 shows the mounting part of the droplet drop sound prevention device of the humidifier. FIG. 3 is a diagram of the droplet receiving plate installed, and FIGS. 4 and 5 are side sectional views of other embodiments of the present invention.

In FIG. 1, reference numeral 1 denotes an ultrasonic vibrator, and the vibrator 1 is vibrated by a circuit 2 to form an ultrasonic water column in the water inside the main body 3, and atomized water particles (hereinafter referred to as , referred to as mist) is ejected into the atomization chamber 4.

On the other hand, 5 is a removable tank that stores water and supplies water to the main body 3. Reference numeral 6 denotes a blower installed in the main body 3, which functions to send air into the atomization chamber 4 and spray mist into the air from the nozzle 7.

8 is a soundproof plate (droplet receiving plate) that prevents water droplets generated from the ultrasonic water column from falling directly onto the water surface.
A hole 8a through which the water column passes is provided in the center thereof, and the periphery of the hole 8a protrudes upward in a cylindrical shape. Reference numeral 9 denotes a cylinder formed in the atomization chamber 4 so as to surround the water column, and a flexible protrusion 9' is provided at the lower end of the cylinder.
A soundproof plate 8 is attached to the base 9'' of the protrusion 9' by using the elasticity of the protrusion 9'.The soundproof plate 8 is provided with a gap between the upper surface and the lower end of the tube 9. The water droplets received on the upper surface are returned to the liquid surface from the outer periphery through the gap.

FIG. 2 shows a state in which the soundproof plate 8 is attached by the protrusion 9', and in this case, the soundproof plate 8 is fitted and attached to the base 9'' of the protrusion 9'.

FIG. 3 shows the soundproof plate 8 before it is attached by the protrusion 9' at the bottom of the cylinder 9 in the atomization chamber 4.
The outer periphery of deforms the protrusion 9' in the direction of the arrow,
It shows that it fits into the base 9''.

FIG. 4 shows that the part of the soundproof board 8 supported by the protrusion 9' is not only the outer periphery of the soundproof board 8 but also the part of the soundproof board 8 that is supported by the protrusion 9'.
This shows that the hole 8' provided in the hole 8' may also be used.

In FIG. 5, the base 9'' of the protrusion 9'
The case outside of is shown.

As mentioned above, according to the present invention, the droplet falling from the liquid column is once received by the droplet receiving plate and then dropped from the receiving plate onto the liquid surface, reducing both the falling distance and velocity, thereby reducing the falling noise. It is possible to suppress the noise to a small level and eliminate the harsh sound. or,
The droplets do not fall from the hole in the center of the droplet receiving plate, but from the outer periphery, so there is no adverse effect on the generation of a liquid column. Since it is attached, it can be easily removed, which is convenient from the standpoint of cleaning.

[Brief explanation of drawings]

Fig. 1 is a sectional view of an ultrasonic humidifier which is an example of an ultrasonic atomizer according to the present invention, and Fig. 2 shows the mounting part of the droplet drop sound prevention device of the humidifier. FIG. 3 is a diagram of the droplet receiving plate installed, and FIGS. 4 and 5 are side sectional views of other embodiments of the present invention. 1: Ultrasonic vibrator, 4: Atomization chamber, 8: Droplet receiving plate, 9: Cylinder.

Claims (1)

[Scope of utility model registration request] In an ultrasonic atomizer that atomizes liquid using ultrasonic energy, a plurality of protrusions are provided at the bottom end of the cylinder that surrounds a liquid column rising on the liquid surface, and a hole in the center through which the liquid column passes. A droplet receiving plate is provided that projects upward from the periphery of the hole, and this droplet receiving plate is attached to a protrusion using the elasticity of the protrusion, and when the droplet receiving plate is attached, the upper surface of the receiving plate and the cylinder are An ultrasonic atomizer characterized by having a gap between the lower ends.