公开(公告)号：US11905637B2

公开(公告)日：2024-02-20

申请号：US17258330

申请日：2019-07-05

申请人： LG ELECTRONICS INC.

发明人： Sungwan Kim ,  Jieon Kim ,  Jongseok Jung

IPC分类号： D06F33/42 ,  D06F23/04 ,  D06F37/30 ,  H02M7/5387 ,  H02P27/08 ,  D06F103/48 ,  D06F105/08 ,  D06F105/48 ,  D06F39/08 ,  D06F105/46 ,  D06F103/18

CPC分类号： D06F33/42 ,  D06F23/04 ,  D06F37/304 ,  H02M7/53871 ,  H02P27/08 ,  D06F39/085 ,  D06F2103/18 ,  D06F2103/48 ,  D06F2105/08 ,  D06F2105/46 ,  D06F2105/48

摘要： The present disclosure relates to a laundry treatment machine. A drain laundry treatment machine according to an embodiment of the present disclosure: an inverter converting a direct current (DC) voltage from a converter into an alternating current (AC) voltage based on a switching operation and outputting the converted AC voltage to a drain motor; an output current detector to detect an output current flowing in the drain motor; and a controller to control the drain motor to rotate at a speed lower than a first speed when the output current flowing in the drain motor decreases in a state where a speed of the drain motor is the first speed. Accordingly, it is possible to reduce a pressure in a vortex chamber of the drain pump during dewatering.

公开(公告)号：US11718944B2

公开(公告)日：2023-08-08

申请号：US17048682

申请日：2019-04-19

申请人： LG ELECTRONICS INC.

发明人： Jungmoon Je ,  Kiwook Lee

IPC分类号： D06F33/32 ,  D06F33/48 ,  D06F33/42 ,  D06F34/14 ,  H02P6/17 ,  H02P6/28 ,  D06F103/48 ,  D06F103/26 ,  D06F103/42 ,  D06F34/08 ,  D06F105/08 ,  D06F23/02 ,  F04D25/06 ,  F04D27/00 ,  D06F103/46 ,  D06F103/68 ,  D06F105/48 ,  D06F37/30 ,  D06F39/08

CPC分类号： D06F33/32 ,  D06F33/42 ,  D06F33/48 ,  D06F34/14 ,  D06F23/02 ,  D06F34/08 ,  D06F37/304 ,  D06F39/082 ,  D06F2103/26 ,  D06F2103/42 ,  D06F2103/46 ,  D06F2103/48 ,  D06F2103/68 ,  D06F2105/08 ,  D06F2105/48 ,  F04D25/06 ,  F04D27/004 ,  H02P6/17 ,  H02P6/28

摘要： The present disclosure relates to a laundry treatment machine. According to an embodiment of the present disclosure, a laundry treatment machine includes a controller controlling a motor, during dewatering, to be driven at a first speed when a lift is at a first level and to drive the motor at a second speed greater than the first speed when the lift is at a second level greater than the first level, wherein the lift is a difference between a water level of a water introduction part through which water flows into a drain pump and a water level of a water discharge part through which the water is discharged out of the drain pump. Accordingly, noise or vibration can be reduced even if the lift is changed during the dewatering.

公开(公告)号：US12116713B2

公开(公告)日：2024-10-15

申请号：US17048927

申请日：2019-04-19

申请人： LG ELECTRONICS INC.

发明人： Jungmoon Je ,  Chungill Lee ,  Kiwook Lee

IPC分类号： D06F33/42 ,  D06F39/08 ,  F04D27/00 ,  D06F34/08 ,  D06F34/14 ,  D06F103/42 ,  D06F103/46 ,  D06F103/48 ,  D06F105/08 ,  F04D25/06 ,  H02P6/17 ,  H02P6/28

CPC分类号： D06F33/42 ,  D06F39/085 ,  F04D27/004 ,  D06F34/08 ,  D06F34/14 ,  D06F2103/42 ,  D06F2103/46 ,  D06F2103/48 ,  D06F2105/08 ,  F04D25/06 ,  H02P6/17 ,  H02P6/28

摘要： The present disclosure relates to a drain pump driving apparatus and a laundry treatment machine including the same. A drain pump driving apparatus according to an embodiment of the present disclosure includes a controller configured to drive a motor, during drainage, based on an output current and a direct current (DC) terminal voltage with a first power when a lift is at a first level and to drive the motor with the first power when the lift is at a second level that is greater than the first level, wherein the lift is a difference between a water level of a water introduction part through which water flows into a drain pump and a water level of a water discharge part through which the water is discharged out of the drain pump. Accordingly, water pumping can be performed smoothly even if the lift is changed during the drainage.

公开(公告)号：US12006616B2

公开(公告)日：2024-06-11

申请号：US17258149

申请日：2019-07-05

申请人： LG ELECTRONICS INC.

发明人： Jieon Kim ,  Jeongbin Rew ,  Junho Lee

IPC分类号： D06F34/10 ,  D06F33/42 ,  D06F33/47 ,  D06F37/30 ,  D06F39/08 ,  F04D13/06 ,  F04D15/00 ,  H02P27/08 ,  H02P29/024 ,  D06F103/48 ,  D06F105/08 ,  D06F105/46 ,  D06F105/58 ,  D06F105/62 ,  F04D1/00

CPC分类号： D06F34/10 ,  D06F33/42 ,  D06F33/47 ,  D06F37/30 ,  D06F39/085 ,  F04D13/06 ,  F04D15/00 ,  H02P27/08 ,  H02P29/026 ,  D06F2103/48 ,  D06F2105/08 ,  D06F2105/46 ,  D06F2105/58 ,  D06F2105/62 ,  F04D1/00 ,  H02P2201/09 ,  H02P2201/15

摘要： The present disclosure relates to a drain pump driving apparatus and a laundry treatment machine including the same. A drain pump driving apparatus according to an embodiment of the present disclosure includes: a converter; an inverter to output converted AC voltage to a drain pump motor; an output current detector to detect an output current flowing in the motor; and a controller to control the inverter, wherein in case in which the speed of the motor increases and the output current flowing in the motor decreases during a predetermined period among an operation period of the drain motor, the controller controls the inverter to be turned off. Accordingly, it is possible to protect internal circuit elements in case the motor loses its synchronism.

公开(公告)号：US11885065B2

公开(公告)日：2024-01-30

申请号：US18075050

申请日：2022-12-05

申请人： LG Electronics Inc.

发明人： Hansu Jung ,  Jaemin Kim ,  Sangwoo Park ,  Junho Lee ,  Lisuel Lim

IPC分类号： D06F58/50 ,  D06F34/10 ,  D06F58/20 ,  D06F58/34 ,  H02P5/74 ,  D06F103/04 ,  D06F103/44 ,  D06F103/46 ,  D06F103/48 ,  D06F105/26 ,  D06F105/30 ,  D06F105/46 ,  D06F101/00 ,  D06F101/14 ,  D06F101/20

CPC分类号： D06F58/50 ,  D06F34/10 ,  D06F58/20 ,  D06F58/206 ,  D06F58/34 ,  H02P5/74 ,  D06F2101/00 ,  D06F2101/14 ,  D06F2101/20 ,  D06F2103/04 ,  D06F2103/44 ,  D06F2103/46 ,  D06F2103/48 ,  D06F2105/26 ,  D06F2105/30 ,  D06F2105/46

摘要： The present specification relates to a clothing treatment apparatus and a control method therefor, the clothing treatment apparatus comprising: a plurality of inverters for controlling the motors of a drum, a compressor, and a blowing fan; a converter for converting input power input from an external source and outputting the converted power to the inverters; and a control unit for controlling the plurality of inverters and the converter.