A negative air ion generator is the use of a high-voltage corona to increase the negative ions in the air, thereby improving air quality, which can promote health, known as the air "vitamins". So, what is the principle of a negative ion generator?
What is a negative ion generator?
A negative ion generator is a device to generates negative air ions, the device will input DC or AC power by an EMI processing circuit and lightning protection circuit processing, through the pulse circuit, over-voltage current limiting; high and low voltage isolation, and other lines up to AC high voltage, and then through a special grade of electronic materials rectifier filtering to get the pure DC negative high voltage, DC negative high voltage connected to the release of the tip of the metal or carbon elements made. The DC negative high voltage is connected to a release tip made of metal or carbon.
Using the tip of the DC high voltage to produce high corona, high-speed discharge of a large number of electrons (e-), and the electrons can not exist in the air for a long time (the existence of the electronic life of only nS level), will immediately be captured by the oxygen molecules in the air (O2), thus generating negative air ions. Experimental research shows that: the ecological level of small particle-size anions is easier to pass through the human blood-brain barrier and plays a role in health care.
Negative air ions generator is the use of high-voltage corona to increase the negative ions in the air, thereby improving air quality, which can promote health, known as the air "vitamins". Medical clinical practice has proved that it is on the respiratory system. Circulatory systems and neurological diseases have auxiliary therapeutic effects, and thus widely used in life and medical circles. This is a kind of high-efficiency open negative ion generator, which adopts a silicon-controlled inverter with high voltage, suspended discharge needle, simple structure, good effect, safety, and reliability. The mains voltage in 160V ~ 250V can work normally, and power consumption is extremely low, only 1W or so, so it can work continuously for a long time.
Negative ion generator working principle
The negative ion generator circuit is shown in the figure. 220V mains voltage by VD1.VD2 and R1.R2 rectifier. Current limiting, unidirectional pulsating current control VS on and off, generating oscillation, after transformer T boost, rectified by VD3 to about 10,000 volts of negative high voltage, the discharge by the discharge needle to the air discharge, ionization, the production of negative ions.
Component selection and production
C1 for 0.1μ/400V polyester or metal dielectric capacitors, R1 for the 22k1/2W resistor, R2 for the 27k.1/4w resistor; VS for the 1A/400V plastic silicon controlled; VD1.VD2 selection of 1N4004 rectifier diodes. VD3 for the 18kV high-voltage silicon pile. T can be used for 35cm black and white TV line output transformer modification of the low-voltage winding coils removed. Remove all the low voltage winding coil, with φ0.3mm enameled wire or wire wound 28 turns for L1.
The original high-voltage package for L2, L3 is the anti-electrocution protection resistor, a resistance value of 2 ~ 4MΩ. three discharge needles available ordinary nickel-plated needles, high-voltage leads to be used in black and white line output high-voltage electricity. The circuit as long as the components are good, welded without error, and debugging can work normally.