Back to results
US 11,629,864 B2Granted
Multi-type air conditioner
AssigneeLG Electronics Inc.
InventorsChiwoo Song, Yongcheol Sa, Ilyoong Shin, Ahrae Jo
Life of this patent
Estimating the term…
Abstract
A multi-type air conditioner may include three pipes, including a high-pressure pipe, a low-pressure pipe, and a liquid line which may be connected to a plurality of indoor units, in which some of the indoor units may be operated in a cooling mode and the rest of the indoor units may be operated in a heating mode, such that waste heat from the indoor units operated in the heating mode may be recovered to be used for the indoor units operated in the cooling mode.
Claims19
A multi-type air conditioner, comprising:
- a case connected to an outdoor unit through a high-pressure pipe, a low-pressure pipe, and a liquid line;
- a first indoor heat exchanger and a second indoor heat exchanger disposed in the case;
- a high-pressure valve connected to the high-pressure pipe and controlling a flow of refrigerant;
- a low-pressure valve connected to the low-pressure pipe and controlling a flow of refrigerant;
- an indoor high-pressure pipe that connects the high-pressure valve and the high-pressure pipe;
- an indoor high-pressure bypass pipe that connects the indoor high-pressure pipe and the first indoor heat exchanger;
- an indoor low-pressure pipe that connects the low-pressure valve and the low-pressure pipe;
- a connection pipe that connects the high-pressure valve and the low-pressure valve to the second indoor heat exchanger;
- an indoor supercooler-liquid line connection pipe connected to the liquid line and causing refrigerant to flow;
- an indoor supercooler connected to the indoor supercooler-liquid line connection pipe;
- a first supercooler connection pipe that connects the indoor supercooler and the first indoor heat exchanger;
- and
- a second supercooler connection pipe that connects the indoor supercooler and the second indoor heat exchanger.
10 more elements
A multi-type air conditioner, comprising:
- an outdoor unit;
- at least one indoor unit, including:
- a case connected to the outdoor unit through a high-pressure pipe, a low-pressure pipe, and a liquid line;
- a first indoor heat exchanger and a second indoor heat exchanger disposed in the case;
- a high-pressure valve connected to the high-pressure pipe and controlling a flow of refrigerant;
- a low-pressure valve connected to the low-pressure pipe and controlling a flow of refrigerant;
- an indoor high-pressure pipe that connects the high-pressure valve and the high-pressure pipe;
- an indoor high-pressure bypass pipe that connects the indoor high-pressure pipe and the first indoor heat exchanger;
- an indoor low-pressure pipe that connects the low-pressure valve and the low-pressure pipe;
- a connection pipe that connects the high-pressure valve and the low-pressure valve to the second indoor heat exchanger;
- a first inlet through which outside air is drawn in;
- a first outlet through which air, having passed through the first indoor heat exchanger and the second heat exchanger, is discharged into a room;
- a second inlet through which indoor air is drawn in;
- and
- a second outlet through which the indoor air, drawn in through the second inlet, is discharged outside;
- a first indoor unit passage that connects the first inlet and the first outlet;
- a second indoor unit passage that connects the second inlet and the second outlet;
- an indoor unit bypass passage that connects the first indoor unit passage and the second indoor unit passage;
- a damper disposed in the indoor unit bypass passage, and controlling an air flow amount bypassed from the second indoor unit passage to the first indoor unit passage;
- an indoor supercooler-liquid line connection pipe connected to the liquid line and causing refrigerant to flow;
- an indoor supercooler connected to the indoor supercooler-liquid line connection pipe;
- a first supercooler connection pipe that connects the indoor supercooler and the first indoor heat exchanger;
- and
- a second supercooler connection pipe that connects the indoor supercooler and the second indoor heat exchanger.
21 more elements
A multi-type air conditioner, comprising:
- an outdoor unit;
- at least one indoor unit, including:
- a case connected to an outdoor unit through a high-pressure pipe, a low-pressure pipe, and a liquid line;
- a first indoor heat exchanger and a second indoor heat exchanger disposed in the case;
- a high-pressure valve connected to the high-pressure pipe and controlling a flow of refrigerant;
- a low-pressure valve connected to the low-pressure pipe and controlling a flow of refrigerant;
- an indoor high-pressure pipe that connects the high-pressure valve and the high-pressure pipe;
- an indoor high-pressure bypass pipe that connects the indoor high-pressure pipe and the first indoor heat exchanger;
- an indoor low-pressure pipe that connects the low-pressure valve and the low-pressure pipe;
- an indoor supercooler-liquid line connection pipe connected to the liquid line and causing refrigerant to flow;
- an indoor supercooler connected to the indoor supercooler-liquid line connection pipe;
- a first supercooler connection pipe that connects the indoor supercooler and the first indoor heat exchanger;
- a second supercooler connection pipe that connects the indoor supercooler and the second indoor heat exchanger;
- and
- a connection pipe that connects the high-pressure valve and the low-pressure valve to the second indoor heat exchanger, wherein the connection pipe comprises:
- a high-pressure valve-second indoor heat exchanger connection pipe that connects the high-pressure valve and the second indoor heat exchanger;
- a low-pressure valve-second indoor heat exchanger connection pipe that connects the low-pressure valve and the second indoor heat exchanger.
14 more elements
Dependencies are inferred from the claim text.