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公开(公告)号：US20170331408A1
公开(公告)日：2017-11-16
申请号：US15667455
申请日：2017-08-02
Applicant: LG ELECTRONICS INC.
Inventor： Gilsu LEE , Naechun PARK , Kyunghoon LEE , Sungbae SONG
CPC classification number: H02P27/08 , H02P1/04 , H02P6/16 , H02P21/18 , H02P21/22 , H02P21/24 , H02P21/34
Abstract: A motor driving apparatus including a motor including a stator and a rotor rotating in the stator, an inverter configured to supply a driving voltage to a stator coil wound on the stator so as to rotate the rotor, and a control unit configured to, when a target command value is received, change a predetermined reference start-up time point to a start-up time point corresponding to an electrical angle position of the rotor in correspondence with the target command value per rotation of the rotor and to control the inverter to supply the driving voltage at the start-up time point.
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公开(公告)号：US20240175502A1
公开(公告)日：2024-05-30
申请号：US18284841
申请日：2022-03-25
Applicant: LG Electronics Inc.
Inventor： Junho MIN , Sungbae SONG , Moonkee CHUNG
IPC: F16K11/085 , F25B41/20 , F16K11/22
CPC classification number: F16K11/0856 , F25B41/20 , F16K11/22
Abstract: Disclosed is a flow path switching device including: a case including a first nozzle into which fluid is introduced, a second nozzle through which fluid is discharged, a plurality of inner outflow pipes through which fluid supplied from the first nozzle flows, a plurality of inner inflow pipes through which the fluid supplied to the second nozzle flows, and a flow path connection portion in which a space is formed to communicate the plurality of inner outflow pipes with the first nozzle or to communicate the plurality of inner inflow pipes with the second nozzle; a valve rotatably disposed in the space of the flow path connection portion, and having a first chamber connecting one of the plurality of inner inflow pipes and the first nozzle according to placement, and a second chamber connecting one of the plurality of inner outflow pipes and the second nozzle; and a motor disposed in one side of the valve and rotating the valve. Each of the first nozzle, the inner outflow pipe, and the flow path connection portion forms a flow path perpendicular to each other inside. A first chamber hole connecting the first chamber and a nozzle flow path formed inside the first nozzle is formed in the valve. A cross-sectional area of the nozzle flow path is reduced to a size corresponding to the first chamber hole from an inlet portion of the first nozzle towards the flow connection portion.
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公开(公告)号：US20160233812A1
公开(公告)日：2016-08-11
申请号：US15041659
申请日：2016-02-11
Applicant: LG ELECTRONICS INC.
Inventor： Gilsu LEE , Naechun PARK , Kyunghoon LEE , Sungbae SONG
CPC classification number: H02P27/08 , H02P1/04 , H02P6/16 , H02P21/18 , H02P21/22 , H02P21/24 , H02P21/34
Abstract: A motor driving apparatus including a motor including a stator and a rotor rotating in the stator, an inverter configured to supply a driving voltage to a stator coil wound on the stator so as to rotate the rotor, and a control unit configured to, when a target command value is received, change a predetermined reference start-up time point to a start-up time point corresponding to an electrical angle position of the rotor in correspondence with the target command value per rotation of the rotor and to control the inverter to supply the driving voltage at the start-up time point.
Abstract translation: 一种电动机驱动装置，包括：电动机，其包括定子和在所述定子中旋转的转子;反相器，被配置为向缠绕在所述定子上的定子线圈提供驱动电压以使所述转子旋转;以及控制单元， 接收目标指令值，将预定的基准起动时间点改变为对应于转子的每个旋转目标指令值对应于转子的电气角度位置的启动时间点，并控制逆变器供应 启动时间点的驱动电压。
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Patent Agency Ranking
公开(公告)号：US20200231020A1
公开(公告)日：2020-07-23
申请号：US16482958
申请日：2018-02-01
Applicant: LG Electronics Inc.
Inventor： Taekyung KIM , Sungbae SONG , Younggyu JUNG , Joongkeun CHOI
Abstract: A cooling and heating cabinet according to an embodiment of the present invention may comprise: an inner case having a storage space provided therein; an outer case which is disposed surrounding the inner case and forms an insulation cavity between the outer case and the inner case; a thermoelectric element module disposed in the insulation cavity; a separation panel disposed inside the inner case and having a plurality of through-holes; an agitating part disposed between the separation panel and the bottom surface of the inner case, and having a magnet and an agitating fan that rotates with the magnet; and a magnetic field-generating part disposed outside the outer case, and generating a magnetic field to rotate the magnet.
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公开(公告)号：US20200032744A1
公开(公告)日：2020-01-30
申请号：US16518004
申请日：2019-07-22
Applicant: LG ELECTRONICS INC.
Inventor： Sungbae SONG , Taekyung KIM , Younggyu JUNG
Abstract: There is disclosed an engine drive apparatus comprising an engine configured to generate a power by combusting mixed gas of air and gas fuel; a fan assembly arranged in an upstream of the engine and configured to super-charge the mixed gas towards the engine; and a mixer provided in an upstream of the fan assembly and configured to mix the air and the fuel with each other, wherein the fan assembly comprises a motor; and a fan connected with the motor via a shaft to drive, and the air is supplied to the mixer after passing through the motor.
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公开(公告)号：US20230332698A1
公开(公告)日：2023-10-19
申请号：US18028871
申请日：2021-09-28
Applicant: LG ELECTRONICS INC.
Inventor： Sungbae SONG , Junho MIN , Moonkee CHUNG
IPC: F25B41/20 , F16K11/085 , F16K27/06
CPC classification number: F16K11/0856 , F16K27/065 , F25B41/20 , F25B2600/2507
Abstract: A flow path switching device of the present disclosure includes a case including a first nozzle into which fluid flows from an indoor unit, a second nozzle which sends fluid to the indoor unit, a plurality of inner outflow pipes through which fluid supplied from the first nozzle flows, a plurality of inner inflow pipes through which fluid supplied to the second nozzle flows, and a flow path connection portion in which a space is formed to connect the plurality of inner outflow pipes with the first nozzle or to connect the plurality of inner inflow pipes with the second nozzle; a valve which is rotatably disposed in the space, connects one of the plurality of outflow pipes and the first nozzle, and connects one of the plurality of inflow pipes and the second nozzle; and a motor which is disposed in one side of the valve, and rotates the valve, wherein the plurality of inner outflow pipes are disposed in the opposite direction to the plurality of inner inflow pipes based on a rotation shaft of the valve.
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公开(公告)号：US20230228336A1
公开(公告)日：2023-07-20
申请号：US18028339
申请日：2021-09-28
Applicant: LG ELECTRONICS INC
Inventor： Junho MIN , Sungbae SONG , Moonkee CHUNG
IPC: F16K11/076 , F16K27/00 , F16K31/04 , F25B25/00 , F25B41/20
CPC classification number: F16K11/076 , F16K27/003 , F16K31/041 , F25B25/005 , F25B41/20 , F25B2600/2507
Abstract: A flow path switching device of the present disclosure includes a case comprising a first nozzle into which fluid flows from an indoor unit, a second nozzle which sends fluid to the indoor unit, a plurality of inner outflow pipes through which fluid supplied from the first nozzle flows, a plurality of inner inflow pipes through which the fluid supplied to the second nozzle flows, and a flow path connection portion in which a space is formed to communicate the plurality of inner outflow pipes with the first nozzle or to communicate the plurality of inner inflow pipes with the second nozzle; a valve which is rotatably disposed in the space of the flow path connection portion, and has a first chamber connecting one of the plurality of inner inflow pipes and the first nozzle according to disposition, and a second chamber connecting one of the plurality of inner outflow pipes and the second nozzle according to disposition; and a motor which is disposed in one side of the valve, and rotates the valve, wherein the plurality of inner outflow pipes and the plurality of inner inflow pipes are disposed in the same one side direction of the flow path connection portion and are spaced apart from each other in a direction in which a rotation shaft around which the valve rotates is formed.
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公开(公告)号：US20200006997A1
公开(公告)日：2020-01-02
申请号：US16482304
申请日：2018-02-01
Applicant: LG ELECTRONICS INC.
Inventor： Taekyung KIM , Sungbae SONG , Younggyu JUNG , Joongkeun CHOI
Abstract: The present embodiment comprise: an inner housing having an inner space formed therein; a rotation shaft assembly supported in the inner housing and having a rotor and a bearing mounted on a rotation shaft thereof; a stator disposed to surround the rotor in the inner housing; an impeller connected to the rotation shaft; an outer housing surrounding the outer periphery of the inner housing and having an inlet body, formed thereat, for guiding air to the impeller. The present embodiment is advantageous in that a heat dissipation vane is provided on the outer peripheral surface of the inner housing to guide air which passes between the inner housing and the outer housing after being suctioned into the inlet body, and thus when being guided by the heat dissipation vane, the air having been moved by the impeller can efficiently absorb heat transferred from the stator to the heat dissipation vane and more stable flow than when colliding against the stator and the rotor, and thus can be quickly discharged.
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