公开(公告)号：US20180142928A1

公开(公告)日：2018-05-24

申请号：US15816300

申请日：2017-11-17

Applicant: LG Electronics Inc.

Inventor： Changmin Choi ,  Taekyu Ha ,  Sunghwan Kim

IPC: F25B45/00 ,  F25B30/02 ,  F25B49/02

CPC classification number: F25B45/00 ,  F25B30/02 ,  F25B43/006 ,  F25B49/02 ,  F25B2313/0294 ,  F25B2345/00 ,  F25B2345/001 ,  F25B2345/003 ,  F25B2345/006 ,  F25B2400/13 ,  F25B2600/0253 ,  F25B2700/21152 ,  Y02B30/741

Abstract: An air conditioner and a method of controlling an air conditioner are provided. The air conditioner may include a compressor, an accumulator that recovers a liquid refrigerant contained in a refrigerant flowing into the compressor, an outdoor heat exchanger that performs heat exchange of air using the refrigerant, an outdoor unit fan that supplies outside air to the outdoor heat exchanger and discharges heat-exchanged air, a refrigerant charging pipe connected to a refrigerant pipe and allowing the refrigerant to the additionally introduced from the outside, a refrigerant charging valve installed in the refrigerant sharping pipe to open and close the refrigerant charging pipe, and a controller that sets an operation mode so as to operate in a cooling operation or a heating operation upon setting of a refrigerant charging mode, sets an operation frequency of the compressor in accordance with a load of an indoor unit upon the setting of the refrigerant charging mode to allow the compressor to operate at the set operation frequency during the refrigerant charging, and calculates an amount of refrigerant in order to stop the refrigerant charging when a predetermined reference value is reached.

公开(公告)号：US20230116355A1

公开(公告)日：2023-04-13

申请号：US17958643

申请日：2022-10-03

Applicant: LG ELECTRONICS INC.

Inventor： Changmin Choi ,  Juntae Kim ,  Soonyong Choi ,  Hyuntak Lee ,  Daewoo Kim ,  Jinsik Kim

IPC: F24F11/46 ,  F24F11/64 ,  G05B13/02

Abstract: Disclosed is an air conditioner. The air conditioner includes: an outdoor unit having therein a compressor for compressing refrigerant; at least one indoor unit; a storage configured to store a database on a power quantity used by the air conditioner; and a controller. The controller is configured to: based on the database, calculate an estimated power quantity expected to be used by the air conditioner for at least a part of an entire period, based on a preset maximum power quantity for the entire period and the calculated estimated power quantity, determine a target power quantity for a specific unit time, which is expected to be used by the air conditioner for the specific unit time of the entire period; control the compressor for the specific unit time based on the target power quantity; and in response to arrival of a point in time to update the target power quantity, add, to the database, the power quantity used by the air conditioner for the specific unit time.

公开(公告)号：US10794621B2

公开(公告)日：2020-10-06

申请号：US15816300

申请日：2017-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Changmin Choi ,  Taekyu Ha ,  Sunghwan Kim

IPC: F25B45/00 ,  F25B49/02 ,  F25B30/02 ,  F25B43/00

Abstract: An air conditioner and a method of controlling an air conditioner are provided. The air conditioner may include a compressor, an accumulator that recovers a liquid refrigerant contained in a refrigerant flowing into the compressor, an outdoor heat exchanger that performs heat exchange of air using the refrigerant, an outdoor unit fan that supplies outside air to the outdoor heat exchanger and discharges heat-exchanged air, a refrigerant charging pipe connected to a refrigerant pipe and allowing the refrigerant to the additionally introduced from the outside, a refrigerant charging valve installed in the refrigerant charging pipe to open and close the refrigerant charging pipe, and a controller that sets an operation mode so as to operate in a cooling operation or a heating operation upon setting of a refrigerant charging mode, sets an operation frequency of the compressor in accordance with a load of an indoor unit upon the setting of the refrigerant charging mode to allow the compressor to operate at the set operation frequency during the refrigerant charging, and calculates an amount of refrigerant in order to stop the refrigerant charging when a predetermined reference value is reached.