Adjustable high-voltage negative ion generating device

Abstract

The invention relates to an adjustable high-voltage negative-ion generation device, which comprises an input circuit, a discharge circuit and a pulse width modulation circuit, wherein the input circuit is used for providing power and at least includes a current limiting resistor and a power supply; the discharge circuit is used for generating negative ions and at least includes a switching tube, a storage capacitor, an autotransformer, a rectifier diode and a receptor; and the pulse width modulation circuit is used for controlling the switching tube. When the power supply is plugged in, the device can change pulse width modulation frequency according to the changes of environmental conditions. More electric energy can be stored through a charging circuit, then boosted to a stable high voltage by utilizing a boosting and rectifying circuit, and controlled through the pulse width modulation circuit; the production quantity can be adjusted according to the changes of the environmental conditions, so as to meet actual demands and avoid energy waste.

Description

technical field [0001] The invention relates to a negative ion generating device, and more specifically relates to an adjustable high-voltage negative ion generating device which can adjust the negative ion generating frequency according to different environmental conditions to reduce energy consumption. Background technique [0002] In the prior art, negative ions are generated through a high-voltage circuit to ionize gas molecules in the air, and then decompose harmful gas molecules in the air to achieve the effect of clearing the air. Such as figure 1 As shown, the circuit diagram of a general high-voltage negative ion generating device is rectified by a full-bridge converter and then boosted by an isolation transformer. The receptor only outputs negative ions in the form of negative discharge after the arc is generated. This negative ion generating device operates with a fixed voltage and frequency, which has the following disadvantages: [0003] (1) The amount of nega...

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Problems solved by technology

[0003] (1) The amount of negative ions generated is fixed, and it can only be applied to specific receptors to generate negative ions. Therefore, when the receptors change or the environmental conditions change, the negative ion output does not change, resulting in poor negative ion output efficiency or excessive energy. consumption, so that there is a problem of insufficient product efficiency or waste of energy

[0004] (2) Since the high voltage has not been rectified by a diode, although negative ions are output in the form of negative discharge, there will still be a positive half-cycle voltage during the boosting process of the high-voltage coil. Although the voltage energy of the positive half cycle is less than that of the negative half cycle energy, but it will still cause the consumption of negative ions, which will reduce the efficiency

[0005] Therefore, usually in the same environment, when there are many people, there may be more pollution sources, and the amount of negative ions that needs to be used is relatively large, and when there are few people, the amount of negative ions that needs to be used is relatively small; therefore, the above-mentioned prior art The device with fixed output of negative ions cannot adapt to different environments; if the device with fixed output of negative ions is used in larger or smaller space environmental conditions, there will be disadvantages of insufficient energy efficiency or energy waste

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