Atomizing sheet driving framework and driving method

Abstract

The invention discloses an atomizing sheet driving framework and a driving method. The atomizing sheet driving framework comprises a driving device and an atomizing sheet, the atomizing sheet drivingframework belongs to the technical field of atomizing sheet driving frameworks, the driving device pushes the atomizing sheet to reach the vibration frequency in an excitation vibration manner, the driving device adopts a single power supply to drive the atomizing sheet, and the atomizing sheet driving framework is scientific, reasonable, and safe and convenient to use. The driving device uses thesingle power supply without a built-in switching power supply transformer; the driving device comprises various voltage protection frameworks, a phase detection protection framework and an over-current protection framework, the voltage protection frameworks carry out voltage detection, the phase detection protection framework carries out phase detection, the over-current protection framework carries out potential monitoring and over-current protection, and the various voltage protection frameworks, the phase detection protection framework and the over-current protection frameworks can protecta humidifier.

Description

technical field [0001] The present invention relates to the technical field of atomizing sheet driving architecture, in particular to an atomizing sheet driving architecture and a driving method. Background technique [0002] Humidifiers have become necessary small household appliances in the product market, mainly to solve the dry climate in winter. The market products are very diverse, and the environment used is also changed. Therefore, there are many problems in the original technical structure of humidifiers. Now There are 2 old architectures: [0003] 1. The technical structure of general large-scale humidifiers is mostly a three-point self-excitation traditional separate component solution. The advantage of this three-point self-excitation is that the waveform output is close to the sine wave output, which makes the vibration of the atomizing sheet smooth, but the disadvantage is that there are many parts and large ,The power triode heats up seriously, and it needs t...

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Problems solved by technology

[0003] 1. The technical structure of general large-scale humidifiers is mostly a three-point self-excitation traditional separate component solution. The advantage of this three-point self-excitation is that the waveform output is close to the sine wave output, which makes the vibration of the atomizing sheet smooth, but the disadvantage is that there are many parts and large ,The power triode heats up seriously, and it needs to add a heat sink, and consider the position of the fan and the heat sink. Generally, large-scale humidifiers are driven by high voltage 30 to 36V, and the power conversion efficiency is poor. It is necessary to provide high-power dual power supply output, so the switching power supply transformer must be built into the humidifier, resulting in the need to pass the switching power supply safety regulations formulated by various countries, which consumes the certification time and certification costs of AC power supply safety regulations;

[0004] 2. Another humidifier architecture is a single-point external excitation detection voltage frequency tracking scheme, which is mainly used in small atomizers and fragrance machines. The drive is driven by a MOS tube MCU output PWM circuit. The disadvantage is that the waveform output is not normal. The positive phase voltage is too high, the negative phase voltage is low, the action of the atomizer tends to bend in the positive direction, and the positive phase voltage is higher than 100V, and it is easy to burn out, so it can only be used on small power and small atomizers;

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