JPS59152207A - Ozonizer - Google Patents

Abstract

PURPOSE:To control the rate of ozone generation in a room at a proper level corresponding to the number of people in the room, by regulating the corona discharge in air by the voices, etc. of people in the room. CONSTITUTION:A high-voltage generation coil 3 is connected between the plate electrode 2 having perforations 2a and a plurality of discharge electrodes 1, and a series circuit composed of the electrical source 4 and an on-off switch 5 is connected to the intermediate tap of the coil 3. The microphone 7 generating a signal by detecting sound pressure is connected to the oscillator 6 and the on-off switch 5. When there is no one in the room and the detected output of the microphone 7 is low, the oscillator generates 1Hz AC signal, and when there are many people in the room, microphone 7 detects the voices of people and 20Hz AC signal is generated by the oscillator 6. The on-off switch 5 is actuated by the signal, and pulses are transmitted to the coil 3. A high voltage is generated between both ends of the coil according to the level of the oscillation frequency, the frequency of corona discharge varies 1-20 times by the absence or presence of people, and the rate of ozone generation in a room occupied people is increased 20 times compared with the generation rate in an empty room.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device that generates ozone-containing ion wind by ionizing the air and generating ozone by performing corona discharge between opposing electrodes in indoor air.

In corona discharge, a high voltage of approximately 3 to 6 kV is applied to a gap between a needle-shaped electrode facing a wire mesh or perforated plate, etc., and a corona is generated at the tip of the needle-shaped electrode, which ionizes the surrounding air and generates ozone. However, since the conventional device is of a type in which the high voltage is continuously applied, there is a drawback that, for example, when a battery is used as a power source, battery consumption is large. Furthermore, the ozone generated in the indoor air has a unique odor, and in high concentrations it is toxic to the respiratory tract. Therefore, when there are no people in the room, the air is not polluted, so if you stop ozone generation or limit it to a very small amount, and then generate a predetermined amount of ozone when someone comes in, you can always purify the air at a constant level. However, in the past, it was inconvenient because it had to be turned on and off manually.

The present invention was proposed in view of these points, and includes a high-voltage generating power source using an oscillator, and controls the oscillation of the power source by detecting surrounding sound, light, or temperature. The system is equipped with a control device.

The present invention will be explained below with reference to an embodiment of the drawings.

In FIG. 1, reference numeral 1 denotes a plurality of discharge electrodes arranged in parallel, each having a needle shape, and facing a flat plate electrode 2.

A large number of holes 2a are made in the flat electrode 2, and needle-shaped W? Ti! 1 to face each other. 3 is a high voltage generating coil whose both ends are connected between electrodes 1 and 2, 4 is a voltage source, and 5 is an on/off switch, and this series circuit is connected to the center tap of the coil 3. 6 is an oscillator for generating pulses that turns on and off the switch 5; 7 is a microphone that detects sound pressure and generates a signal; the oscillation frequency of the oscillator 6 is switched by the signal; The frequency is changed by lowering the frequency while there is no signal from the microphone 7, and increasing the oscillation frequency when a sound pressure signal is detected.

The oscillation frequency of the oscillator 6 is switched, for example, in two steps, and when there is no signal from the microphone 7, it oscillates at 1H7,
When a signal is detected in microphone 7, 2 Of-l z
If the oscillation pulse causes the switch 5 to switch on and off, pulse current is applied to the coil 3, and the high voltage generated across the coil 3 is applied to the electrode 1.2, causing a discharge, so that the oscillation frequency changes. When proportional ozone generation occurs and no sound pressure is detected by microphone 7, 1H
A very small amount of ozone is generated by the oscillation of 20 Hz, and when the microphone 7 detects a match, 20 times the amount of ozone is generated by the oscillation of 20 Hz. Therefore, when there are people in the room and sound is generated, it is possible to generate enough ozone to purify the indoor air, but not excessively, and when there is no one in the room, the system automatically generates a small amount of ozone with an oscillation of 11"Z. can be switched. When setting the amount of ozone generated, it is possible to perform a stable purification process by setting an appropriate value depending on the size of the installation room and the state of air pollution. In addition, since the discharge voltage is applied in a pulsed manner and ozone is generated during the pulsed discharge, it is extremely easy to control the amount of generated ozone, and the pulsed control allows ozone generation to be controlled while controlling the rest time, which reduces power consumption. is reduced,
In particular, when a battery power source is used, the lifespan is increased and economical use becomes possible.

FIG. 2 shows another embodiment in which a photoelectric element 8 is provided to detect light from indoor lighting, etc., and the oscillation frequency is switched depending on the light detection by the lighting. Further, to detect a signal when a person is in the room, the oscillation frequency can be changed by detecting the indoor temperature by a heating device.

In addition, water vapor, dust, SiO2, Fe2O3,
Since other oxides and the like may adhere and accumulate and interfere with the generation of electric discharge, it is preferable that the needle electrode be configured to be removable and replaced every 3 to 6 months.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention. 1.2... Electrode 3... Coil 4... Power supply 5... Switch 6... ...... Oscillator 7 ...... Microphone 8 ...... Photoelectric device patent application Person = 5-years-old / 321-year-old Takumi

Claims (1)

[Claims] In a device that generates corona discharge between opposing electrodes in the air to ionize the air and generate ozone, a high-voltage generating power source using an oscillator is provided to generate the corona discharge, and the oscillation of the power source is generated by surrounding noise. An ozone generator characterized by comprising a control device that detects and controls light or temperature.