AIR CONDITIONING DEVICE AND METHOD FOR DETERMINING WHETHER OPERATING STATUS THEREOF IS NORMAL

摘要

An air conditioning device and a method for determining whether an operating status thereof is normal are provided. The method comprises: after a compressor of an air conditioning device has operated stably for a first preset period of time at the maximum operating frequency permitted for a current operating condition, obtaining an air inlet temperature and an air outlet temperature of the air conditioning device; calculating the absolute value of a difference between the air outlet temperature and the air inlet temperature; and determining that an operating status of the air conditioning device is normal if the absolute value of the difference between the air outlet temperature and the air inlet temperature is greater than or equal to a preset temperature difference threshold. When the compressor operates stably at the maximum operating frequency, the air outlet temperature directly reflects a heating or cooling effect of the air conditioning device. Therefore, the absolute value of the difference between the air inlet temperature and the air outlet temperature accurately reflects the amount of a refrigerant in a cooling system of the air conditioning device in a timely manner, thereby improving accuracy and timeliness of determination. The air inlet temperature and the air outlet temperature are easily obtained, thereby simplifying an internal structure of the air conditioning device and reducing costs.