公开(公告)号：US10269238B2

公开(公告)日：2019-04-23

申请号：US15626316

申请日：2017-06-19

Applicant: LG ELECTRONICS INC.

Inventor： Hakrae Lee ,  Yugu Kim ,  Unsik Park ,  Donggi Eom ,  Hanbae Jeon

IPC: H04L12/707 ,  H04L12/26 ,  H04L12/835 ,  G08C19/00 ,  G08C19/34 ,  F24F11/54 ,  F24F11/88 ,  H04L1/00 ,  H04L12/815 ,  F24F11/30 ,  F24F11/62 ,  F24F1/0003 ,  F24F11/61 ,  F24F11/63 ,  F24F11/64

Abstract: An air conditioner and a communication method for an air conditioner are provided. The air conditioner may include an outdoor unit; an indoor unit; and a central controller connected to the indoor unit through a communication line. The indoor unit may perform periodic communication for transmitting a plurality of periodic packets to at least one of the outdoor unit or the central controller at predetermined periods, and change and transmit the plurality of periodic packets so as to decrease a load on the communication line.

公开(公告)号：US20170261246A1

公开(公告)日：2017-09-14

申请号：US15457439

申请日：2017-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Cheonsu PARK ,  Seunghyo Kim ,  Donggi Eom

IPC: F25B49/02 ,  H02P21/22 ,  H02P27/08

CPC classification number: F25B49/025 ,  F25B13/00 ,  F25B2500/26 ,  F25B2600/021 ,  F25B2700/151 ,  H02P21/22 ,  H02P27/08 ,  H02P29/62 ,  H02P2203/09 ,  Y02B30/741

Abstract: A compressor driving apparatus and an air conditioner including the same, whereby the compressor driving apparatus includes a capacitor connected to a DC terminal, an inverter, including a plurality of three-phase switching devices, to convert DC power from the capacitor into AC power to drive a compressor motor, an output current detector to detect output current flowing in the motor, and a controller to output a switching control signal for controlling the inverter based on the output current, wherein the controller performs control such that some of the three-phase switching devices in the inverter are turned on or off in a compressor preheating mode.

公开(公告)号：US10852024B2

公开(公告)日：2020-12-01

申请号：US16144044

申请日：2018-09-27

Applicant: LG ELECTRONICS INC. ,  Pusan National University Industry-University Cooperation Foundation

Inventor： Hakrae Lee ,  Jinho Kim ,  Chulmin Park ,  Donggi Eom ,  Seontae Yoon ,  Kyongdo Lee ,  Kwonhyung Lee ,  Sukchan Kim

IPC: H04W72/02 ,  H04W72/04 ,  H04Q9/02 ,  F24F11/00 ,  F24F11/58 ,  F24F11/62 ,  F24F1/0003 ,  H04W4/33 ,  F24F120/10 ,  G05B15/02

Abstract: A method for controlling an air conditioner system may include receiving, by one of an outdoor unit and a plurality of indoor units in a group, a command; transmitting, by the outdoor unit, a channel scan command to the plurality of indoor units; performing a channel scan by each of the outdoor unit and the plurality of indoor units; transmitting, by the plurality of indoor units, channel scan results to the outdoor unit; determining, by the outdoor unit, a channel to be used among a plurality of pre-set channels of a particular group based on a result of the channel scan performed by the outdoor unit and the channel scan results received from the plurality of indoor units; and outputting, by the outdoor unit, information on the channel to the plurality of indoor units. According to this method, an optimal wireless communication channel may be set.

公开(公告)号：US10760811B2

公开(公告)日：2020-09-01

申请号：US16144119

申请日：2018-09-27

Applicant: LG ELECTRONICS INC. ,  Pusan National University Industry—University Cooperation Foundation

Inventor： Hakrae Lee ,  Jinho Kim ,  Chulmin Park ,  Donggi Eom ,  Seontae Yoon ,  Kyongdo Lee ,  Kwonhyung Lee ,  Sukchan Kim

IPC: F24F11/58 ,  F24F1/0003 ,  G05B21/00 ,  F24F11/62 ,  F24F11/61 ,  F24F11/64 ,  F24F11/88 ,  F24F11/52 ,  F24F11/30 ,  F24F11/56 ,  H04W72/04 ,  H04W72/02

Abstract: A method for controlling an air conditioner system may include a preset reception rate degradation error occurs in one or more indoor unit, transmitting a channel switch request signal to an outdoor unit belonging to a particular group; performing a channel scan by each of the outdoor unit and the plurality of indoor units; transmitting, by the plurality of indoor units, channel scan results to the outdoor unit; determining, by the outdoor unit, a channel to be used by the particular group based on a result of a channel scan performed by the outdoor unit and the channel scan results received from the plurality of indoor units; and outputting, by the outdoor unit, information on the channel to the plurality of indoor units. Accordingly, the communication channel may be changed to an optimal communication channel according to a change a communication environment.

公开(公告)号：US10359223B2

公开(公告)日：2019-07-23

申请号：US15457439

申请日：2017-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Cheonsu Park ,  Seunghyo Kim ,  Donggi Eom

IPC: F25B49/02 ,  H02P21/22 ,  H02P27/08 ,  H02P29/62 ,  F25B13/00

Abstract: A compressor driving apparatus and an air conditioner including the same, whereby the compressor driving apparatus includes a capacitor connected to a DC terminal, an inverter, including a plurality of three-phase switching devices, to convert DC power from the capacitor into AC power to drive a compressor motor, an output current detector to detect output current flowing in the motor, and a controller to output a switching control signal for controlling the inverter based on the output current, wherein the controller performs control such that some of the three-phase switching devices in the inverter are turned on or off in a compressor preheating mode.