US 2020/0240682 A1Published application

Air conditioner

AssigneeLG Electronics Inc.

InventorsByoungjin RYU, Sangil PARK, Yoonho YOO

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Abstract

An air conditioner including: a continuous refrigeration apparatus comprising a first gas control unit connected to a first indoor heat exchanger of the plurality of indoor heat exchangers, a second gas control unit connected to a second indoor heat exchanger of the plurality of indoor heat exchangers, a first pipe connecting a liquid pipe of the outdoor unit and a liquid of the indoor unit, and a second pipe which is branched from the first pipe and connected to the first gas control unit and the second gas control unit, wherein the first gas control unit comprises: a first-first flow path connecting the first gas control unit to the second pipe; a first-second flow path which is connected to the first-first flow path, and through which the refrigerant discharged from the first indoor heat exchanger flows during a refrigeration operation of the first indoor heat exchanger; and a first-third flow path which is connected in parallel with the first-second flow path, and guides the refrigerant discharged from the compressor to the first indoor heat exchanger during a defrosting operation of the first indoor heat exchanger, and connects a gas pipe of the outdoor unit and the first indoor heat exchanger.

Claims13

Dependent claims

An air conditioner comprising:

an outdoor unit comprising a compressor for compressing a refrigerant, and an outdoor heat exchanger for heat-exchanging outdoor air with the refrigerant;
an indoor unit comprising a plurality of indoor heat exchangers for heat-exchanging indoor air with the refrigerant, and an indoor expansion valve which is connected to the plurality of indoor heat exchangers and expands the refrigerant;
and
a continuous refrigeration apparatus comprising a first gas control unit connected to a first indoor heat exchanger of the plurality of indoor heat exchangers, a second gas control unit connected to a second indoor heat exchanger of the plurality of indoor heat exchangers, a first pipe connecting a liquid pipe of the outdoor unit and a liquid pipe of the indoor unit, and a second pipe which is branched from the first pipe and connected to the first gas control unit and the second gas control unit,
wherein the first gas control unit comprises:
a first-first flow path connecting the first gas control unit to the second pipe;
a first-second flow path which is connected to the first-first flow path, and through which the refrigerant discharged from the first indoor heat exchanger flows during a refrigeration operation of the first indoor heat exchanger;
and
a first-third flow path which is connected in parallel with the first-second flow path, and guides the refrigerant discharged from the compressor to the first indoor heat exchanger during a defrosting operation of the first indoor heat exchanger, and connects a gas pipe of the outdoor unit and the first indoor heat exchanger,
wherein the second gas control unit comprises:
a second-first flow path connecting the second gas control unit to the second pipe;
a second-second flow path which is connected to the second-first flow path, and through which the refrigerant discharged from the second indoor heat exchanger flows during a refrigeration operation of the second indoor heat exchanger;
and
a second-third flow path which is connected in parallel with the second-second flow path, and guides the refrigerant discharged from the compressor to the second indoor heat exchanger during a defrosting operation of the second indoor heat exchanger, and connects the gas pipe of the outdoor unit and the second indoor heat exchanger.

11 more elements

An air conditioner comprising:

an outdoor unit comprising a compressor for compressing a refrigerant, an outdoor heat exchanger for heat-exchanging outdoor air with the refrigerant, an outdoor unit gas pipe connected to the compressor, and an outdoor unit liquid pipe connected to the outdoor heat exchanger;
an indoor unit comprising a plurality of indoor heat exchangers for heat-exchanging indoor air with the refrigerant, a plurality of indoor unit gas pipes connected to one end of the plurality of indoor heat exchangers respectively, an indoor unit liquid pipe connected to the other end of the plurality of indoor heat exchangers, and a plurality of indoor expansion valves installed in a flow path connecting the indoor unit liquid pipe and the plurality of indoor heat exchangers respectively;
and
a continuous refrigeration apparatus which is disposed between the outdoor unit and the indoor unit, connects the outdoor unit gas pipe and the plurality of indoor unit gas pipes, and connects the outdoor unit liquid pipe and the indoor unit liquid pipe,
wherein the continuous refrigeration apparatus comprises:
a plurality of gas control units which are connected to the outdoor unit gas pipe, and branched to be connected to the plurality of indoor unit gas pipes respectively;
a first pipe having one end connected to the outdoor unit liquid pipe, and the other end connected to the indoor unit liquid pipe;
and
a second pipe connecting the first pipe and the plurality of gas control units,
wherein each of the plurality of gas control units comprises:
a first flow path connecting the gas control unit and the second pipe;
a second flow path which is connected to the first flow path, and connects the outdoor unit gas pipe and the indoor unit gas pipe;
and
a third flow path connected in parallel with the second flow path.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/748,982Filed 22 Jan 2020
Priority: KR 10-2019-000971125 Jan 2019
Published: 30 Jul 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

F25B 13/00
Compression machines, plants or systems, with reversible cycle
F25B 41/20
Fluid-circulation arrangements: disposition of valves, e.g. of on-off valves or flow control valves
F25B 41/31
Expansion means; Dispositions thereof: expansion valves
F25B 41/34
Expansion valves: with the valve member being actuated by electric means, e.g. by piezoelectric actuators