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公开(公告)号：AU2021230235A1
公开(公告)日：2022-10-13
申请号：AU2021230235
申请日：2021-03-03
Applicant: LG ELECTRONICS INC
Inventor： HAN SANGCHUL , JUN CHASEUNG , LEE SANGJU , KONG TAEWOONG , CHOI HYOJIN , PARK JINWOO
IPC: H02M7/48
Abstract: The present invention relates to a power conversion device and a home appliance having same. A power conversion device according to an embodiment of the present invention comprises: a first capacitor that stores a first voltage; a first switching element that is turned on to output, to a first node that is one end of an inductive load, the first voltage stored in the first capacitor; a second switching element that has one end connected to the first switching element and is turned on to decrease the voltage of the first node to the first voltage; a third switching element that is turned on to output, to the first node that is the one end of the inductive load, a second voltage greater than the first voltage; and a fourth switching element that is connected to one end of the third switching element and is turned on to decrease the voltage of the first node to the ground voltage. Accordingly, switching loss can be reduced when supplying power to the inductive load.
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公开(公告)号：AU2020202160A1
公开(公告)日：2020-10-15
申请号：AU2020202160
申请日：2020-03-26
Applicant: LG ELECTRONICS INC
Inventor： KWON SUNKU , JUN CHASEUNG
IPC: H02P5/00
Abstract: A motor driving device configured to control a three-phase motor and a single-phase motor to operate 5 in parallel through an inverter including three pairs of upper switching elements and lower switching elements and connected to a dc terminal in which upper and lower DC-link capacitors are located, wherein there is a neutral terminal between the upper and lower DC 10 link capacitors, wherein two pairs of upper switching elements and lower switching elements among three pairs are connected to a-phase terminal and b-phase terminal of the three-phase motor, respectively, the other pair of upper switching elements and lower switching 15 elements among three pairs is connected to a first terminal of the single-phase motor, and the neutral terminal is connected to c-phase terminal of the three phase motor and a second terminal of the single-phase motor. A c FIG. 2 CbCo Tb T+Rr. ici
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公开(公告)号：AU2012329770B2
公开(公告)日：2016-05-12
申请号：AU2012329770
申请日：2012-10-24
Applicant: LG ELECTRONICS INC
Inventor： JUN CHASEUNG , CHOI BYUNGKEOL , KIM YOUNGMIN , KIM DONGWON , KIM HYUNDONG , JUNG HWANJIN , MIN BYUNGWOOK , KIM KYEONGHWAN , KIM JINWOONG , SON CHANGWOO , SEO HYUNSEOK
Abstract: Disclosed is a washing machine comprising a main drum rotatably mounted in the tub, a sub drum mounted inside the main drum to be relatively rotatable with respect to the main drum, an outer shaft for rotating the main drum, an inner shaft for rotating the sub drum and disposed inside the outer shaft, and a driving motor. The driving means is configured to rotate the main drum and the sub drum in different directions and/or with different rotational speeds. The washing machine further comprises a main drum spider to connect the main drum to the outer shaft to transfer a driving force of the driving means to the main drum, and a sub drum spider to connect the sub drum to the inner shaft to transfer a driving force of the driving means to the sub drum, wherein the two spiders are arranged to be independently rotatable.
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公开(公告)号：AU2012329770A1
公开(公告)日：2014-06-05
申请号：AU2012329770
申请日：2012-10-24
Applicant: LG ELECTRONICS INC
Inventor： JUN CHASEUNG , CHOI BYUNGKEOL , KIM YOUNGMIN , KIM DONGWON , KIM HYUNDONG , JUNG HWANJIN , MIN BYUNGWOOK , KIM KYEONGHWAN , KIM JINWOONG , SON CHANGWOO , SEO HYUNSEOK
Abstract: Disclosed is a washing machine comprising a main drum rotatably mounted in the tub, a sub drum mounted inside the main drum to be relatively rotatable with respect to the main drum, an outer shaft for rotating the main drum, an inner shaft for rotating the sub drum and disposed inside the outer shaft, and a driving motor. The driving means is configured to rotate the main drum and the sub drum in different directions and/or with different rotational speeds. The washing machine further comprises a main drum spider to connect the main drum to the outer shaft to transfer a driving force of the driving means to the main drum, and a sub drum spider to connect the sub drum to the inner shaft to transfer a driving force of the driving means to the sub drum, wherein the two spiders are arranged to be independently rotatable.
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公开(公告)号：AU2012329769A1
公开(公告)日：2014-05-15
申请号：AU2012329769
申请日：2012-10-24
Applicant: LG ELECTRONICS INC
Inventor： JUN CHASEUNG , CHOI BYUNGKEOL , KIM YOUNGMIN , KIM DONGWON , KIM HYUNDONG , JUNG HWANJIN , MIN BYUNGWOOK , KIM KYEONGHWAN , KIM JINWOONG , SON CHANGWOO , SEO HYUNSEOK
Abstract: Disclosed is a washing machine comprising a main body defining an outer appearance, a tub disposed within the main body, a main drum rotatably mounted in the tub, a sub drum mounted inside the main drum to be relatively rotatable with respect to the main drum, an outer shaft for rotating the main drum, an inner shaft for rotating the sub drum and disposed inside the outer shaft, and a driving motor. The driving motor has a stator, an outer rotor connected to the inner shaft and disposed outside the stator and, an inner rotor connected to the outer shaft and disposed inside the stator, wherein the driving motor is configured to rotate the main drum and the sub drum in different directions and/or with different rotational speeds.
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Patent Agency Ranking
公开(公告)号：AU2020318643A1
公开(公告)日：2022-02-24
申请号：AU2020318643
申请日：2020-06-18
Applicant: LG ELECTRONICS INC
Inventor： KWON SUNKU , CHOE SEHWA , LIM DONGHYUN , JUN CHASEUNG
Abstract: The present disclosure provides a control method for automatically detecting what kind of nozzle is a nozzle mounted on a cleaner by using different starting current profiles. The cleaner may include a suction unit for suctioning dust, and various nozzles which are detachable from the suction unit. The nozzle may include a rotation cleaning unit which is accommodated in the nozzle to clean a surface to be cleaned, and a nozzle driving unit for driving the rotation cleaning unit. The nozzle may exhibit different starting current profiles depending on the number of rotations or reduction ratio of the nozzle driving unit, or whether an auxiliary control unit is included.
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公开(公告)号：AU2020202160B2
公开(公告)日：2021-12-23
申请号：AU2020202160
申请日：2020-03-26
Applicant: LG ELECTRONICS INC
Inventor： KWON SUNKU , JUN CHASEUNG
Abstract: A motor driving device configured to control a three-phase motor and a single-phase motor to operate 5 in parallel through an inverter including three pairs of upper switching elements and lower switching elements and connected to a dc terminal in which upper and lower DC-link capacitors are located, wherein there is a neutral terminal between the upper and lower DC 10 link capacitors, wherein two pairs of upper switching elements and lower switching elements among three pairs are connected to a-phase terminal and b-phase terminal of the three-phase motor, respectively, the other pair of upper switching elements and lower switching 15 elements among three pairs is connected to a first terminal of the single-phase motor, and the neutral terminal is connected to c-phase terminal of the three phase motor and a second terminal of the single-phase motor. A c FIG. 2 CbCo Tb T+Rr. ici
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公开(公告)号：AU2020264301A1
公开(公告)日：2021-05-20
申请号：AU2020264301
申请日：2020-11-04
Applicant: LG ELECTRONICS INC
Inventor： KWON SUNKU , JUN CHASEUNG , JEONG JAEHOON , CHOE SEHWA
Abstract: A device for driving a plurality of motors and an electric apparatus having the same include a first 5 capacitor and a second capacitor; an inverter connected to a DC terminal; a multi-phase motor connected to the inverter; a single-phase motor serially connected with the multi-phase motor; and a controller to control the inverter, wherein, for 10 starting the single phase motor during operation of the multi-phase motor, the controller controls to perform an alignment period for alignment of a rotor of the single-phase motor and a voltage compensation period for compensating a voltage change of a DC 15 terminal neutral point between the first capacitor and the second capacitor based on the alignment of the rotor of the single-phase motor. Accordingly, it is possible to stably start the single-phase motor while reducing the rotational torque ripple of the multi 20 phase motor during the multi-phase motor operation. 220x 420a 420b 420c 420d INVERTER INVERTER INVERTER [INVERTER Ma Mb Mc Md COMPRESSOR DRUM FAN PUMP MOTOR M OTOR MOTOR MOTOR
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公开(公告)号：AU2020445869A1
公开(公告)日：2023-01-05
申请号：AU2020445869
申请日：2020-09-16
Applicant: LG ELECTRONICS INC
Inventor： CHA JINWOOK , JUN CHASEUNG , JEONG JAEHOON , PARK CHARYEOM
Abstract: The present invention relates to a motor assembly comprising a core with an improved structure. An embodiment of the present invention provides a motor assembly comprising: a shaft forming a rotational axis of a motor; a rotor coupled to the shaft; and a plurality of cores provided along the circumference of the rotor and forming a magnetic path. The cores are spaced apart from the outer circumferential surface of the rotor by a predetermined distance and surround at least a portion of the outer circumferential surface of the rotor, and each comprise: a pole shoe having a first surface parallel to the radial direction of the rotor; and a pole arm extending from the pole shoe toward the radially outer side of the rotor. Among the plurality of cores, the first surfaces formed on the pole shoes of adjacent cores are symmetrical with respect to the radial direction of the rotor.
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公开(公告)号：AU2020213391B2
公开(公告)日：2022-03-10
申请号：AU2020213391
申请日：2020-08-07
Applicant: LG ELECTRONICS INC
Inventor： KWON SUNKU , JUN CHASEUNG , CHOE SEHWA , LEE WOOKJIN
Abstract: A device for driving a plurality of motors and an electric apparatus having the same according to an 5 embodiment of the present disclosure include an inverter connected to a DC terminal, a multi-phase motor connected to the inverter, a single-phase motor serially connected to the multi-phase motor, and a first capacitor and a second capacitor serially 10 connected to both ends of the DC terminal, wherein the single-phase motor is connected to the multi-phase motor, and a node between the first capacitor and the second capacitor. Accordingly, a plurality of motors serially connected with each other can be driven by 15 using a single inverter. 220x 420a 420b 420c 420d IVTER INVERTER INVERTER INVERTER Ma Mb Mc Md COMPRESSOR DRUM FAN FAN MOTOR MOTOR MOTOR MOTOR
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