JPH04278138A - Ultrasonic humidifier control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an ultrasonic humidifier that controls the amount of moisture in the air based on humidity.

0002

2. Description of the Related Art There is a conventional ultrasonic humidifier control device that detects and issues a notification of water shortage in a water tank, as shown in, for example, Japanese Utility Model Application Laid-Open No. 1-82432. The configuration will be explained with reference to FIG. 4. A convection fan motor 3 and a voltage generation circuit 4 that supplies output power are connected in parallel to a series circuit of a current fuse 2 and a commercial power source 1. Voltage generation circuit 4
The second output power supply Vout2 of the
The output power source Vout1 and the second output power source Vout2 are configured. The first output power source Vo of this voltage generation circuit 4
Ultrasonic transducer 10 in parallel with ut1 and earth line GND
and transistor 9 are connected. The ultrasonic transducer 10 is connected to the first output power supply Vout1 of the voltage generation circuit 4,
The other end of this ultrasonic transducer 10 is connected to the collector end of the transistor 9, and the emitter end of the transistor 9 is connected to the GN
Connected to D.

[0003] The second output power supply Vout of the voltage generation circuit 4
A microcomputer 8 is connected to the microcomputer 2 to serve as a power source for operating the microcomputer, and an in-tank water shortage detection switch 5 and a water exchange detection switch 11 are connected in parallel to the microcomputer 8. The other end of the water shortage detection switch 5 is connected to a resistor 6, the other end of the resistor 6 is connected to GND, and the connection point between the water shortage detection switch 5 and the resistor 6 is connected to the input port I1 of the microcomputer 8.

[0004] Also, the second output power source Vo of the voltage generating circuit 4
The ut2 is connected in parallel with the microcomputer 8 to an operation operation means 7 for inputting start and stop of operation, and a notification means 12 for making various notifications. The output of the operating means 7 is input to input ports I3, I4, and I5 of the microcomputer 8, the other end of the notification means 12 is connected to the collector end of a transistor 13, and the emitter end of the transistor 13 is connected to GND.

Output port O2 of microcomputer 8 is connected to the base end of transistor 9, and output port O1 of microcomputer 8 is connected to the base end of transistor 9.
is connected to the base end of the transistor 13.

[0006] The operation of the control device having the above configuration will be explained.

When a predetermined signal is input from the operating means 7 to the input ports I3, I4, and I5 of the microcomputer 8,
A "High" signal is output from the output port O2 of the microcomputer 8, driving the transistor 9 and operating the ultrasonic transducer 10. However, if the water tank (not shown) is filled with water and the operation is started, the water will run out. When the detection switch 5 is turned on and the water in the tank decreases to below a certain amount, the tank water shortage detection switch 5 detects that the water is running out, and a "High" signal is sent to the input port I1 of the microcomputer 8. Humidification is continued until a "High" signal is input to the input port I1 of the microcomputer 8, and the notification means 12 notifies the user of water shortage.

[0008]

[Problems to be Solved by the Invention] In the above-mentioned conventional technology,
If you fill the water tank and do not drive the vehicle until the drought detection switch 5 causes the notification means 12 to notify you of a drought, the water will be exposed to the air for a long time, causing dirt and pathogens to propagate. There are problems that are not good for health.

For example, Japanese Utility Model Application Publication No. 2-28023 discloses a system that notifies you when water is exposed to the air for a long period of time without driving much, but on the other hand, the water in the tank decreases and a situation of drought occurs. Since the system does not notify you when the humidifying temperature is reached, you may inadvertently run the system idly without humidifying the air when it should be humidified.

[0010] Also, for example, Japanese Patent Laid-Open No. 63-54573 discloses a method of introducing chemicals into a water tank to prevent the proliferation of pathogenic bacteria, but the image of using chemicals has caused a stir in environmental problems. In today's world, there are problems such as difficulty in gaining acceptance.

[0011]

[Means for Solving the Problems] The present invention has been made to solve the above problems, and includes an in-tank water shortage detection switch for detecting water shortage in a water tank in a voltage generating circuit;
A water exchange detection switch that is activated when the water tank is stored;
A microcomputer is connected to a notification means, and when the water in the water tank decreases below a certain amount, the water shortage detection switch detects a water shortage, and when a water shortage signal is input to the microprocessor, the microprocessor issues a water shortage alarm signal. After the water change detection switch is activated by storing the water tank and the water tank is still stored, the status of the water change detection switch is changed. The microcomputer is equipped with a means for achieving a program that outputs a water exchange signal from the microcomputer and notifies the water exchange using a notification means when a certain signal remains inputted to the microcomputer.

0012

[Operation] The present invention is configured as described above, so that when the water in the water tank decreases to below a certain amount, the water shortage detection switch detects that the water is running out, and when a water shortage signal is input to the microcomputer. After the microcomputer outputs a drought alarm signal and the alarm means reports a drought, and the water change detection switch is activated by storing the water tank, water is exposed to the air for a long time, causing dirt and pathogens to grow. Even after the specified time has passed, the state of the water change detection switch does not change because the water tank remains stored, i.e., when the signal to the microcomputer continues to be input, the microcomputer outputs a water change signal and notifies the user. It works to notify you of water change.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a circuit diagram of a control device for an ultrasonic humidifier, in which a series circuit of a commercial power source 1 and a current fuse 2 that disconnects the device in the event of an overcurrent is connected to a convection device that releases atomized water into the air. A fan motor 3 and a voltage generation circuit 4 for power supply configuration are connected in parallel. The convection fan motor 3 operates constantly during operation, discharging air inside the device and taking in air from outside the device.

The voltage generating circuit 4 constitutes a first output power source Vout1 and a second output power source Vout2, each having a different voltage. First output power supply Vout1 of voltage generation circuit 4
The other end of the ultrasonic vibrator 10 is connected to the collector end of the transistor 9, and the emitter end of the transistor 9 is connected to GND.

Second output power supply Vout of voltage generation circuit 4
A microcomputer 8 is connected to the microcomputer 2 to serve as a power source for operating the microcomputer, and an in-tank water shortage detection switch 5 and a water exchange detection switch 11 are connected in parallel to the microcomputer 8. The other end of the water shortage detection switch 5 is connected to a resistor 6, the other end of the resistor 6 is connected to GND, and the connection point between the water shortage detection switch 5 and the resistor 6 is connected to the input port I1 of the microcomputer 8. Further, the other end of the water exchange detection switch 11 is connected to the resistor 14, the other end of the resistor 14 is connected to GND, and the connection point between the water exchange detection switch 11 and the resistor 14 is connected to the input port I2 of the microcomputer 8. are doing.

Furthermore, the second output power supply V of the voltage generation circuit 4
Connected to out2 in parallel with the microcomputer 8 are an operation operation means 7 for inputting start and stop of operation, and a notification means 12 for making various notifications. The output of the operating means 7 is input to input ports I3, I4, and I5 of the microcomputer 8, the other end of the notification means 12 is connected to the collector end of a transistor 13, and the emitter end of the transistor 13 is connected to GND.

Output port O2 of microcomputer 8 is connected to the base end of transistor 9, and output port O1 of microcomputer 8 is connected to the base end of transistor 9.
is connected to the base end of the transistor 13.

FIG. 2 is a cross-sectional view of the essential parts of the ultrasonic humidifier control device, in which the tank water shortage detection switch 5 is provided at a position where it can detect water 24, and the water exchange detection switch 11 is located at a position where it can detect water 24. It is located below.

The operation of one embodiment of the present invention having the above configuration will be explained.

When a predetermined signal is input from the operating means 7 to the input ports I3, I4, and I5 of the microcomputer 8,
A "High" signal is output from the output port O2 of the microcomputer 8, driving the transistor 9 and operating the ultrasonic transducer 10. However, when the water tank 20 in Fig. 2 is filled with water and the operation is started, a water shortage is detected. When the switch 5 is turned on and the water in the water tank 20 decreases to below a certain amount, the water shortage detection switch 5 in the water tank 20 detects that the water is in a shortage state, and a “High” signal is sent to the input port I1 of the microcomputer 8. Humidification is continued until a "High" signal is inputted, and when a "High" signal is inputted to the input port I1 of the microcomputer 8, the notification means 12 notifies the user of water shortage as shown in FIG. However, when filling the water tank with water and humidifying it intermittently, the water exchange detection switch 11 is placed in a position where it contacts the end of the water tank 20, as shown in FIG. 2, and the water exchange detection switch 11 is turned on. The time is measured, and if t1, it is assumed that there is no abnormality, and even after t2 time, the water exchange detection detection switch 11 is turned on.In other words, water is exposed to the air for a long time, and dirt and pathogens may propagate. If a "High" signal is input to the input port I2 of the microcomputer 8 for more than t2 time even after the predetermined time has elapsed, the output port O1 of the microcomputer 8
A "High" signal is outputted to drive the transistor 13, and the notification means 12 notifies the water exchange.

[0022]Although a buzzer is used as the notification means 12 and, for example, a ``drought'' is notified with an intermittent sound and a ``water change'' is notified with a continuous sound, a speaker is used and a specific synthesis by a voice synthesis means is used. It is more effective to notify by sound.

[0023] Furthermore, the same effect can be obtained even if a plurality of indicator lamps are used to display the information in different colors, or if a display means is used to display characters such as "Drought" and "Water Change".

[0024]

[Effects of the Invention] According to the present invention, when the water in the water tank decreases to below a certain amount, it is detected that there is a water shortage, and the notification means notifies the user of the water shortage, so water can be replenished without running dry. In addition to being able to humidify the water by using the same notification means, if the water in the water tank does not change even after a certain long period of time has passed, it will automatically notify you to change the water using the same notification means. If you don't do a lot of driving, you don't need to sterilize water or use complicated equipment, and it has a simple configuration.
The water is exposed to the air for a long time, and the water is replaced before dirt and pathogens can propagate, thereby providing a humidifying device that is good for human health.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a control device for an ultrasonic humidifier according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part.

FIG. 3 is a sequence diagram as well.

FIG. 4 is a circuit diagram of a conventional ultrasonic humidifier control device.

[Explanation of symbols]

4 Voltage generation circuit 8. Microcomputer 11 Water exchange detection switch 12 Buzzer

Claims (1)

[Claims] Claim 1: Ultrasonic vibration means that connects a convection fan motor and a voltage generation circuit that supplies power to a commercial power source, and atomizes water supplied from a water tank to the power generated by the voltage generation circuit. In the ultrasonic humidifier control device comprising a control means and an operating means for stopping operation of the humidifier, the voltage generating circuit (4) is connected to a water tank (
20) In-tank water shortage detection switch (
5), a water exchange detection switch (11) that is activated when the water tank (20) is stored, a microcomputer (8), and a notification means (12) to detect when the water in the water tank (20) has decreased. When the amount is below a certain level, the water shortage detection switch (5) detects a water shortage, and when a water shortage signal is input to the microcomputer (8), the microcomputer (8) outputs a water shortage notification signal and the notification means (12) detects the water shortage. After the state of the water change detection switch (11) changes due to the storage of the water tank (20), the water tank (20) remains stored even after a certain period of time has elapsed, and the water change is detected. A program that outputs a water change notification signal from the microcomputer (8) when the state of the switch (11) does not change, that is, a certain signal continues to be input to the microcomputer (8), and uses the notification means (12) to notify the water change. A control device for an ultrasonic humidifier, characterized in that a microcomputer (8) is equipped with means for achieving the above.