An intelligent defrosting method for a DC inverter air conditioner

Abstract

The invention provides an intelligent defrosting method for a direct current frequency conversion air conditioner. The outdoor environment temperature and the outdoor coil temperature are detected through an outdoor main control panel at any time, five defrosting starting conditions are set, and the defrosting motion is started as long as any condition is met; and meanwhile, two conditions are set, and the defrosting motion is stopped. By means of the intelligent defrosting method, whether an outdoor condenser of the air conditioner defrosts or not can be accurately judged, defrosting starting caused by frequent malfunction is avoided, defrosting can be stopped quickly and accurately, heating can be restored so as to enter in the defrosting condition, complete intelligence is achieved, and resources are saved; and meanwhile, the coverage ambient temperature range is wide, the defrosting state of the outdoor condenser can be accurately judged, and defrosting caused by malfunction when no frost exists can be avoided.

Description

technical field [0001] The invention relates to an intelligent defrosting method for a DC frequency conversion air conditioner. Background technique [0002] With the emergence of the global energy crisis, DC inverter air conditioners, which are energy-saving, environmentally friendly, and emission-reducing, have been favored by more and more customers, and countries all over the world are also vigorously promoting DC inverter air conditioners. The comparison between DC inverter air conditioners and ordinary fixed frequency air conditioners is shown in the following table: [0003] [0004] Through the above comparison, it can be seen that the DC inverter air conditioner has the incomparable excellence of conventional air conditioners. Its super low heating energy and defrosting performance effectively ensure that the DC inverter air conditioner can still heat well in the environment of minus 10 degrees. Although conventional air conditioners can judge whether the outdoo...

AI Technical Summary

Problems solved by technology

In low-temperature and dry areas, the temperature of the outdoor coil is very low, but there is no frost. At this time, the air conditioner will malfunction frequently and enter defrosting

And in coastal areas with low temperature and humidity, there will be a phenomenon that although the defrosting is carried out, the defrosting is not clean.

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