Patent ID: 7308800
Filing Date: 2007-12-18
Classification: F24F,F25B

Abstract:
1. A multi-type air conditioner comprising: an outdoor unit installed outdoors, comprising a compressor, a refrigerant flow controller for selectively guiding the refrigerant according to operation conditions, an outdoor heat exchanger, a defrosting device positioned at a side of the outdoor heat exchanger for removing frost from the outdoor heat exchanger during a heating operation mode of the multi-type air conditioner, and a piping system for connecting the compressor, the refrigerant flow controller, the outdoor heat exchanger and the defrosting device; a plurality of indoor units each installed in a room and having an indoor heat exchanger and an electronic expansion valve having one end connected to one end of the indoor heat exchanger; and a distributor between the outdoor unit and the indoor units for selectively guiding refrigerant from the outdoor unit to the plurality of indoor units according to operation conditions, and guiding the refrigerant passed through the indoor units to the outdoor unit again, wherein the piping system comprises; a first connection pipeline for connecting the discharge end of the compressor, the refrigerant flow controller, the outdoor hear exchanger and the distributor in this order, a second connection pipeline for guiding compressed refrigerant discharged from the discharge end of the compressor to the distributor, and a third connection pipeline for connecting the refrigerant flow controller, a suction end of the compressor and the distributor.