3results about How to "Improve low temperature heating performance" patented technology

This invention discloses a control method, device, air conditioner, and medium for an air conditioner's outdoor fan, relating to the field of air conditioning technology. The method includes: if the air conditioner is in heating mode, determining the fan speed of the outdoor fan based on the acquired outdoor ambient temperature, compressor frequency, and current operating cycle; adjusting the fan speed of the outdoor fan based on the outdoor ambient temperature, the current operating cycle, and the acquired external pipe temperature; detecting whether a fan speed correction condition is met based on the outdoor ambient temperature, the acquired indoor ambient temperature, the internal pipe temperature, and the fan speed of the air conditioner's indoor fan; if the fan speed correction condition is met, correcting the operating correction value corresponding to the fan speed of the outdoor fan based on the decay rate of the external pipe temperature. This invention achieves precise control of the outdoor fan's fan speed when outdoor humidity is high, slowing down the rate of condenser frosting and improving low-temperature heating efficiency.

The application provides an air conditioner and a control method, device, storage medium and computer program product thereof, and belongs to energy-saving refrigeration and air conditioning equipment. The air conditioner comprises a compressor, a four-way valve, an indoor heat exchanger, a flash evaporator, an economizer and an outdoor heat exchanger; the indoor heat exchanger is connected with the flash evaporator; the flash evaporator is connected to a suction port of the compressor and the economizer; the economizer is connected to a charge port of the compressor; the outdoor heat exchanger is connected with the economizer; a third throttling device is arranged on a pipeline connecting the indoor heat exchanger with the flash evaporator; a first throttling device is arranged on a pipeline connecting the outdoor heat exchanger with the economizer; and a second throttling device is arranged on a heat exchange pipeline of the economizer. The method comprises the following steps: detecting the discharge pressure, discharge temperature, suction pressure, suction temperature and charge pressure of the compressor; and controlling the first, second and third throttling devices according to the detected discharge pressure, discharge temperature, suction pressure, suction temperature and charge pressure. The application can increase the refrigerant circulation amount.

The application discloses a control method of an air conditioner, which comprises the following steps: acquiring a current operation parameter of an indoor fan of the air conditioner, wherein the current operation parameter comprises a current wind speed or a wind baffle of the indoor fan; and adjusting a current through a winding of a compressor of the air conditioner according to the current operation parameter, so as to open a heating function of the winding and heat refrigerant in the compressor through the winding. The application further discloses an air conditioner and a computer storage medium. The indoor heating demand is determined according to the wind speed or the wind baffle of the indoor fan, and the current through the winding of the compressor is adjusted correspondingly, so as to adjust the low-temperature heating capacity of the air conditioner correspondingly, thereby avoiding improving the low-temperature heating capacity of the air conditioner by improving the rotating speed of the compressor, and improving the reliability of the air conditioner in low-temperature heating.