Patent ID: 11953242
Assignee: LG ELECTRONICS INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. An air conditioner comprising:
an outdoor unit including a compressor configured to compress a refrigerant and an outdoor heat exchanger configured to exchange heat between the refrigerant and outside air; and
a ventilation device connected to the outdoor unit through a liquid refrigerant pipe, a high-pressure refrigerant pipe, and a low-pressure refrigerant pipe, and configured to supply the outside air to an indoor space, and discharge indoor air to an outside,
wherein the ventilation device comprises:
a case defining a supply flow path through which the outside air is supplied to the indoor space, and a discharge flow path through which the indoor air is discharged to the outside;
a main heat exchanger disposed in the supply flow path, and configured to exchange heat between air flowing in the supply flow path and the refrigerant;
a recovery heat exchanger disposed in the discharge flow path, and configured to exchange heat between air flowing in the discharge flow path and the refrigerant;
a refrigerant distributor connected to the liquid refrigerant pipe, the high-pressure refrigerant pipe, and the low-pressure refrigerant pipe, the refrigerant distributor being configured to supply the refrigerant from the outdoor unit to each of the main heat exchanger and the recovery heat exchanger, and discharge the refrigerant from each of the main heat exchanger and the recovery heat exchanger to the outdoor unit;
a re-heat heat exchanger disposed in the supply flow path and configured to heat air flowing through the supply flow path, the re-heat heat exchanger being connected to each of the high-pressure refrigerant pipe and the liquid refrigerant pipe,
wherein a liquid pipe control valve is disposed in the liquid refrigerant pipe and configured to control an amount of refrigerant supplied from the outdoor unit to the refrigerant distributor, and
wherein the re-heat heat exchanger is connected to the liquid refrigerant pipe at a position between the refrigerant distributor and the liquid pipe control valve.