Defrosting method and device for full-quality air conditioner

Abstract

The invention provides a defrosting method and device for a full-quality air conditioner, and relates to the technical field of air conditioners. The method comprises the following steps of acquiring an outdoor environment temperature value and an outdoor environment humidity value; calculating a dew point temperature value according to the outdoor environment temperature value and the outdoor environment humidity value; determining whether to enter a first defrosting mode or not; determining whether to enter an automatic defrosting mode or not; controlling the full-quality air conditioner to enter a refrigeration mode; and determining whether the automatic defrosting mode is quitted or not. According to the defrosting method for the full-quality air conditioner, accumulation of frost on a surface air cooler is avoided, and defrosting is clean and thorough; whether the full-quality air conditioner needs to be controlled to enter the defrosting mode or not can be accurately judged, a unit is prevented from frequently entering the defrosting mode, a defrosting interval and a defrosting operation time of each time are judged according to actual operation working conditions instead of fixed values, and therefore intelligent judgment and automatic adjustment of the defrosting time and the defrosting interval are achieved. The heating effect of the full-quality air conditioner is improved, and energy consumption is low.

Description

technical field [0001] The present disclosure relates to the technical field of air conditioners, in particular to a defrosting method and device for a full-quality air conditioner. Background technique [0002] At present, the existing full-quality air conditioner judges whether the full-quality air conditioner enters defrosting according to the outdoor ambient temperature, fin temperature, and defrosting interval. The defrosting process does not heat. At this time, if the exhaust gas temperature is low and the weather is too cold, the defrosting will often operate, which will make the indoor heating effect worse. [0003] The current full-quality air conditioners have worse heating effects in areas with high humidity. In areas with high humidity, after several defrosting cycles of the full-quality air conditioner, when the ambient temperature is close to 2°C, since the ambient temperature is related to the defrosting interval, the high ambient temperature will lengthen th...

AI Technical Summary

Problems solved by technology

Repeatedly, the defrosting on the surface cooler is not clean and thorough. Due to the unclean defrosting, the frosting on the surface cooler is uneven

When the ambient temperature continues to drop (less than -5°C), the humidity of the general environment will be greatly reduced. Although the temperature is low, frost may not necessarily form. At this time, the full-quality air conditioner will frequently enter defrosting, which will affect the heating effect of the unit.

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