| 摘要 |
<p>PURPOSE: An air conditioner is provided to appropriately obtain overcooling and perform efficient injection by controlling the amount of refrigerant injected by a compressor according to a driving mode of the air conditioner. CONSTITUTION: An air conditioner comprises overcooling devices (40,50), injection fluid path (80,90), a bypass fluid path (70), and fluid path opening and closing units (110,120). The overcooling devices excessively cools refrigerants condensed in an external heat exchanger (20) or an internal heat exchanger (60). The injection fluid path induces the refrigerant passing through the overcooling devices into an injection inlet of a compressor (10). The bypass fluid path is extended from the injection fluid path to a suction unit of the compressor and bypasses the refrigerant. The fluid path opening and closing unit is included in at least one fluid path among the injection fluid path and the bypass fluid path and selectively blocks the flow of the refrigerant.</p> |
