Working principle of outdoor unit of air conditioner

The working loop of air conditioner is divided into evaporation area (low pressure area) and condensation area (high pressure area). The indoor unit and outdoor unit of the air conditioner belong to the low pressure area or the high pressure area respectively (depending on the working state). Then, the refrigerant flows from the high pressure area to the low pressure area and is injected into the evaporator through the capillary tube. When the pressure drops suddenly, the liquid refrigerant immediately becomes gaseous, and absorbs a lot of heat in the air through the fins. In this way, the air-conditioning compressor constantly absorbs the heat at one end of the low-pressure area into the refrigerant when working, and then sends it to the high-pressure area to be radiated into the air, thus playing a role in regulating the temperature. The principle is the same as that of heating and refrigeration, that is, reverse Carnot cycle, while the principle of refrigeration is different from that of condenser and evaporator, that is, compressor-evaporator-throttle device-condenser.