US 9,810,457 B2
Air conditioner
Heewoong Park, Changwon-si (KR); and Noma Park, Changwon-si (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Dec. 30, 2014, as Appl. No. 14/585,881.
Claims priority of application No. 10-2013-0168799 (KR), filed on Dec. 31, 2013.
Prior Publication US 2015/0184905 A1, Jul. 2, 2015
Int. Cl. F25B 30/02 (2006.01); F25B 41/00 (2006.01); F25B 13/00 (2006.01); F25B 40/00 (2006.01); F25B 43/00 (2006.01)
CPC F25B 30/02 (2013.01) [F25B 13/00 (2013.01); F25B 40/00 (2013.01); F25B 41/00 (2013.01); F25B 43/006 (2013.01); F25B 2400/051 (2013.01); F25B 2400/13 (2013.01); F25B 2400/23 (2013.01); F25B 2400/24 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An air conditioner, comprising:
a compressor that compresses a refrigerant;
an outdoor heat-exchanger that performs heat exchange of the refrigerant with outdoor air;
an indoor heat-exchanger that performs heat exchange of the refrigerant with indoor air;
a converter valve that guides the refrigerant discharged from the compressor to the outdoor heat-exchanger in a cooling operation and guides the refrigerant to the indoor heat-exchanger in a heating operation;
an accumulator disposed between the compressor and the converter valve to separate the refrigerant into a liquid-phase refrigerant and a gas-phase refrigerant;
an accumulator jacket disposed on a surface of the accumulator and configured to contain a refrigerating fluid flowing therein to heat exchange with the accumulator to thereby be cooled;
a supercooling heat-exchange hub configured to store the refrigerating fluid cooled at the accumulator jacket and to overcool the refrigerant flowing between the outdoor heat-exchanger and the indoor heat-exchanger;
an injection module, disposed between the outdoor heat-exchanger and the indoor heat-exchanger, that injects a portion of the refrigerant flowing between the outdoor heat-exchanger and the indoor heat-exchanger to the compressor; and
a circulating pump configured to forcibly circulate the refrigerating fluid flowing in the supercooling heat-exchange hub and the accumulator jacket, wherein the injection module comprises;
an injection expansion valve that expands a first portion of the refrigerant flowing between the indoor heat-exchanger and the outdoor heat-exchanger; and
an injection heat-exchanger that performs heat exchange between a second portion of the refrigerant flowing between the indoor heat-exchanger and the outdoor heat-exchanger and the refrigerant expanded in the injection expansion valve, wherein the circulating pump is configured to operate in the cooling operation, and not to operate in the heating operation, and wherein the injection valve is configured to be open in the heating operation, and to be closed in the cooling operation.