JPS6039097Y2 - ultrasonic humidifier - Google Patents

Description

[Detailed description of the invention] The present invention is a superstructure in which a piezoelectric vibrator provided in a liquid container is connected to an oscillation circuit to oscillate, and the liquid is atomized by the vibration of the vibrator accompanying the oscillation. The present invention relates to a sonic humidifier, and particularly to its electric circuit portion.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIG. 1, which illustrates the general structure of an ultrasonic humidifier, and FIGS. 2 and 3, which illustrate embodiments of the present invention.

Figure 1 shows the general structure of an ultrasonic humidifier. In this drawing, 1 is a piezoelectric vibrator, 2 is an ultrasonic oscillation circuit, 3 is a tank for supplying liquid to be atomized, and 4 is a tank for supplying liquid to be atomized. The blower works to send out the mist from the nozzle 5.

Reference numeral 6 denotes a main body that houses these parts and constitutes an ultrasonic humidifier.

Figure 2 shows the electric circuit of the ultrasonic humidifier according to the present invention. The circuit within the dashed line is the ultrasonic oscillation circuit 2, which is a type of Pierce C8 circuit, and T and D in the figure are piezoelectric This is vibrator 1.

A float switch 7 opens and closes the bias circuit of the transistor Tr.

The float switch 7 is operated by a float (not shown) provided in the inner tank of the main body 6, and is turned on when the liquid level is at an appropriate height, closing the bias circuit and turning on the transistor T.
A bias current is applied to r to operate the oscillation circuit.

Reference numeral 8 denotes a volume, which is inserted into the bias circuit, and changes the resistance value to change the base current of the transistor Tr, adjust the high frequency current to the piezoelectric vibrator 1, and increase or decrease the amount of atomization.

9 is a triac, the middle point of the volume 8 is connected to the anode A1, and the gate G is connected to the resistor R of the ultrasonic oscillation circuit 2.
1, and a blower (including a motor) 4 and a neon lamp display element 10 are connected through an AC power supply between the anodes Al and A2.

In the electric circuit configured as described above, while the float switch 7 is on and the bias current flows and oscillation continues, the gate of the triac 9 is triggered by the bias current and remains on, and the blower 4 is in operation. , the neon lamp 10 is lit.

On the other hand, when the liquid level changes and its height becomes lower, the float switch 7 is turned off and the bias current is cut off.

When the bias current is cut off, the gate G of triac 9
is turned off, the blower 4 stops, and the neon lamp 10 goes out.

This operation makes it possible to indicate that oscillation has stopped and to save power.

FIG. 3 shows another embodiment of the present invention, in which 5CR11 is used instead of the triac.

By using 5CR11 in this manner, on/off control of the DC power supply load is possible.

In this drawing, 12 is a DC motor, 13 is a light emitting diode display element, and 14 is a protective resistor.

As described above, the present invention provides an ultrasonic humidifier in which a piezoelectric vibrator provided in a liquid container is connected to an oscillation circuit to oscillate, and the liquid is atomized by the vibration of the vibrator accompanying the oscillation. In the device, a switch that turns on and off by detecting the liquid level is inserted and connected to the bias circuit of the transistor of the oscillation circuit, and a thyristor that uses the bias circuit as a gate circuit is provided, and a blower and a display element are connected to the thyristor. When the liquid level drops, oscillation can be stopped to protect the piezoelectric vibrator, and at the same time, the blower can be stopped and the display element turned off to reduce wasted power and save power. Moreover, the stop of oscillation can be easily recognized by switching the display element from on to off, making it an extremely practical idea.

[Brief explanation of drawings]

Figure 1 is a sectional view showing the structure of a general ultrasonic humidifier.
Figure 2 is an electrical circuit diagram of the ultrasonic humidifier according to the present invention;
The figure is an electrical circuit diagram of another embodiment. 1 (T, D): piezoelectric vibrator, 2: ultrasonic oscillation circuit, 4: blower, 6: main body, 7: float switch, 8:
Volume, 9: Triac, 10: Neon lamp, 1
1:5CR1Tr: Transistor.

Claims (1)

[Scope of utility model registration request] In the ultrasonic humidifier, a piezoelectric vibrator provided in a liquid container is connected to an oscillation circuit to oscillate, and the liquid is atomized by the vibration of the vibrator accompanying the oscillation, and the liquid is sprayed outward by a blower. A switch that detects the liquid level height and turns on and off is inserted and connected to the bias circuit of the transistor of the oscillation circuit, and a thyristor that uses the bias circuit as a gate circuit is provided, and a blower and a display element are connected to this thyristor. An ultrasonic humidifier featuring: