Defrosting apparatus of air conditioner outdoor machine and control method thereof

The invention relates to a defrost device of outdoor machine of air conditioner, and relative control method, wherein the invention is characterized in that: the outdoor heat exchanger is divided into two parts, while each part is connected with electromagnetic valve and expander; and the defrost co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	ZHUJUN GE
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING RANGES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a defrost device of outdoor machine of air conditioner, and relative control method, wherein the invention is characterized in that: the outdoor heat exchanger is divided into two parts, while each part is connected with electromagnetic valve and expander; and the defrost control method comprises: entering into heating step; judging the operating time; judging if the air conditioner has entered into outdoor distribute tube temperature step; if it has reached preset time and temperature, entering into defrosting step; judging if the defrosting is ended and if it is ended, returning to heating step. The invention can avoid auxiliary electric heater, and switching into refrigerating mode periodically, to defrost automatically.