Fresh air machine and control method thereof

Abstract

The invention relates to a fresh air machine and a control method of the fresh air machine. Layout of channels in a cabinet is reasonably arranged, an indoor and outdoor air opening and closing plate is controlled to be opened and closed through a first stepping motor, a fresh air bypass channel is controlled to be opened and closed through a second stepping motor, the suitable ventilation channel is selected according to data fed back by a sensing mechanism, and the fresh air machine operates without a heat exchanger on the condition of small difference between indoor temperature and outdoor temperature; a dust removal and sterilization mechanism, an air purification mechanism and a negative ion generator are arranged in the cabinet, bacteria and viruses can be efficiently killed, peculiar smell can be removed, and air entering a room can be purified. According to the control method, a circuit control panel is adopted for controlling an indoor temperature sensor and an outdoor temperature sensor in real time to detect indoor temperature values and outdoor temperature values to obtain the difference value between the indoor temperature and the outdoor temperature, a carbon dioxide sensor is controlled to detect the concentration value of carbon dioxide in the room, three intelligent control operation modes of the fresh air machine are provided, and while the service life of the heat exchanger serving as a key component is prolonged, the requirement for selecting the different air purification modes of a user is met. The fresh air machine is good in purification effect and fresh air effect.

Description

technical field [0001] The invention belongs to the technical field of air conditioning; air humidification; ventilation; and the application of air flow as a screen, and particularly relates to a device that can control the wind direction through a stepping motor to provide different purification modes and prolong the service life of the heat exchanger Fresh air blower and its control method. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for indoor air quality. A fresh air blower that can efficiently clean the air, have a high energy efficiency ratio, and is intelligent and easy to use is what consumers need. [0003] The fresh air fan is an effective air purification equipment, which can circulate the indoor air. On the one hand, the indoor dirty air is discharged outside, and on the other hand, the outdoor fresh air is sterilized, disinfected, filtered and other measures, and then input into the Indoor...

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is that in the prior art, functions such as turning on and off of the fresh air fan are limited to remote control or button control on the fresh air fan, which is not intelligent, has a low degree of automation, and only has the fresh air fan operating mode. As a result, the fresh air fan cannot be used by remote control, and the indoor air quality cannot be learned and improved in real time. At the same time, the fresh air fan still needs to be operated through the heat exchanger when the indoor and outdoor temperature difference is not large in spring and autumn, and the system resistance cannot be controlled by heat exchange. According to the actual demand, the air duct resistance is changed, so that the service life of the heat exchanger is greatly shortened; and the indoor air cannot be purified alone, which consumes energy and is not environmentally friendly, thus providing an optimized fresh air fan and its control method

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