| 摘要 |
An air conditioning system is provided to prevent defrosting of an outdoor heat exchanger by streaming high pressure and temperature refrigerant to an outdoor heat exchanger through the conversion for a cooling driving mode. An air conditioning system comprises a bypass pipe(19), a passage conversion pipe(22), a pressure controller(14), a bypass valve(20), and a valve member. The bypass pipe, which is connected to inlets of an indoor heat exchanger and an outdoor heat exchanger, streams a portion of refrigerant to the inlet of the indoor heat exchanger in condensation prevention driving into the inlet of the outdoor heat exchanger. The passage conversion pipe, which is connected to outlets of an expansion member and the outdoor heat exchanger, streams the refrigerant discharged from the expansion member in condensation prevention driving to the outlet of the outdoor heat exchanger. The pressure controller is placed at one position of the bypass pipe. The bypass valve is positioned at the inlet of the bypass pipe. The valve member selectively streams the refrigerant to the inlet of the outdoor heat exchanger and the passage conversion pipe, and also includes a three-way valve(13).
|
