Intelligent thermostatic control method and device for an air conditioner blowing cold and hot air

摘要

An intelligent thermostatic method for an air conditioner blowing cold and hot air has steps of calculating an estimated thermal load according to an indoor temperature, an outdoor temperature, a configured temperature, a sunlight intensity, and a cooling/heating capacity corresponding to the estimated thermal load; adjusting the air conditioner according to the estimated thermal load and providing an estimated cooling/heating capacity; and determining a difference value between an actual cooling/heating capacity and the estimated cooling/heating capacity and adjusting the air conditioner according to the difference value for thermostatic control. Accordingly, the air conditioner of the present invention has enhanced power utilization efficiency of the air conditioner without having to repeatedly turn on and off the electric compressor of the air conditioner.

主权项

1. An intelligent thermostatic control method for an air conditioner blowing cold and hot air, wherein the air conditioner includes an electric compressor, a condenser, an expansion valve and an evaporator, the condenser has a cooling fan mounted outside the condenser and the evaporator has a blower mounted outside the evaporator, the method is performed by the air conditioner and comprises steps of:
calculating an estimated thermal load according to an indoor temperature, an outdoor temperature, a configured temperature, and a sunlight intensity, and an estimated cooling/heating capacity corresponding to the estimated thermal load; adjusting the air conditioner according to the estimated thermal load and providing the estimated cooling/heating capacity; determining a difference value between an actual cooling/heating capacity and the estimated cooling/heating capacity and adjusting the air conditioner according to the difference value for thermostatic control, wherein the actual cooling/heating capacity is calculated according to an input power of the electric compressor and enthalpy values at the electric compressor, the condenser, the expansion valve and the evaporator of the air conditioner; lowering a speed of the blower of the evaporator or the cooling fan of the condenser for the actual cooling/heating capacity to approach the estimated cooling/heating capacity when the actual cooling/heating capacity is greater than the estimated cooling/heating capacity; and increasing the speed of the electric compressor for the actual cooling/heating capacity to approach the estimated cooling/heating capacity when the actual cooling/heating capacity is smaller than the estimated cooling/heating capacity.