Energy-saving air supply method for portable air purification device

Abstract

An energy-saving air supply method for a portable air purification device, comprising at least a main body, a fan, and a power supply, the fan is a hollow cup fan using a hollow cup motor, the structural part of the air purification device located on the face has a touch switch, and the air The electric drive system of the purification device adopts an intermittent operation mode. When a person is inhaling, the airflow or negative pressure generated by inhalation touches the touch switch, so that the fan starts to run, and when the inhalation is stopped or when the exhalation is triggered, the touch switch is touched. The control switch is restored or reversed, and the fan stops running. The electric drive system has a control module, which can automatically output multi-level voltage or current to the fan according to the contact state of different contacts of the touch switch. The control module has a voltage stabilizing module. When inside, the voltage stabilizing module outputs a regulated output voltage to the motor, and when the battery voltage is lower than the set minimum regulated input voltage threshold, it switches to the battery directly outputting current to the motor.

Description

technical field [0001] The invention relates to the field of air purification devices, in particular to an energy-saving air supply method for a portable air purification device. Background technique [0002] Air pollution has led to the use of a large number of masks, but not many use portable air purifiers, because the existing various portable air purification devices are not convenient to use, some are not effective, and some are uncomfortable to wear. Some are because the battery life is too short, and some are hard to be popularized because they are ugly, so the applicant proposed the previous application "A Rear Head Air Purifying Breathing Device" with the application number 2016208328930, hereinafter referred to as "Back Breathing Device" 》, with a large filter area, is an air purification device that can be used normally without electric drive. [0003] At present, most of the portable air purification devices on the market still use electric-driven air-supply air...

AI Technical Summary

Problems solved by technology

[0020] Let’s go back and say that in the actual production and use of the said revolving spring 32, it is difficult to play a regulating role at all, because the battery is used, not to mention that the patent has no control function, even if there is, no matter how it is controlled, The wind pressure generated by the fan will be different for different battery life periods. Returning to the first point above, if the pressure of the revolving spring 32 is small, the "cavity pressure" caused by the excessive wind pressure of the fan will appear. If the pressure of the revolving spring 32 is too small, and the wind pressure generated by the fan is greater than the pressure of the revolving spring 32 plus the inhalation, there will be problems even during inhalation. The problem of frequent start-up will also affect normal breathing; if the pressure of the revolving spring 32 is too large, even when exhaling, the fan will not stop working, and the exhaled gas may flow from the mask. Leak out around

[0021] What's more, even if the same person is in different states, the positive pressure and negative pressure generated by breathing will be different. Moreover, the pressure itself generated by exhaling and inhaling is not very large. We have all used breathing valve masks, so A very simple circular diaphragm breathing valve can sometimes not be opened when exhaling normally, which makes people feel uncomfortable. Although the patent may use a sealing mask, the pressure generated by the convoluted spring 32 is very large. It is difficult to adapt to different breathing states of people and different battery life at the same time. Too much pressure and too little pressure will make people uncomfortable. It seems to be a very simple spring to adjust the pressure. The key is that the wind pressure generated by this fan cannot be controlled by the technical solution of this patent.

[0022] Therefore, the practicability of the above-mentioned patents is actually relatively limited, there are certain logical errors, and the energy-saving effect is not high, so there is a lot of room for change

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