Features of various ion fans
Abstract: The electronics industry is the production of high-precision components. The impact of static electricity on the electronics industry is the most fundamental and most lethal.
Nowadays, the function of the ion fan is no longer single, so various ion fans have appeared on the market. The following small series introduces the characteristics of various types of ion fans:
First, the AC type ion fan:
1. Simple design and low cost;
2, stable
3. The ionization efficiency of the sine wave is low, which is not suitable for occasions requiring rapid neutralization;
4. Different positive page ionization energies make ionization balance difficult;
5. The natural neutralization of positive and negative ions alternately producing 1/100 or 1/120 second (50 or 60 Hz) ions will further reduce efficiency and require high wind compensation;
6, due to low efficiency, the need for a larger voltage to generate enough ions, will cause a lot of particles, is not conducive to a strict dust-free environment.
Second, DC type ion fan
1. Continuous high pressure uses high ionization efficiency and can handle rapid neutralization needs;
2, can use a lower voltage, suitable for clean room use;
3. Ability to use automatic measurement and feedback to control ionization balance;
4. Complex control circuits are needed to ensure the balance of positive and negative ions.
Third, pulsed DC ion fan
1. The ion population generated by the pulse reduces the natural neutralization. Allow the ionizer to leave the protected object farther (can pass 5 meters);
2, most commonly used in dust-free workshops where low air flow may be required;
3, the pulse time can be adjusted to suit the airflow or distance requirements of the environment;
4. Pulse waves cause "voltageswing" voltage changes that may be detrimental to some devices.
Fourth, high frequency AC ion fan
1, high frequency communication mode above 3000HZ can greatly improve the AC ionization efficiency;
2. A lower ionization voltage can be used;
3. Good ion balance;
4, the discharge needle does not need to be grouped, the size can be made very small
5, suitable for use in clean rooms
6. Short acting distance and wind compensation.
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