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公开(公告)号：US09899951B2
公开(公告)日：2018-02-20
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.
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公开(公告)号：US11025122B2
公开(公告)日：2021-06-01
申请号：US16482304
申请日：2018-02-01
Applicant: LG ELECTRONICS INC.
Inventor： Taekyung Kim , Sungbae Song , Younggyu Jung , Joongkeun Choi
Abstract: A fan motor is provided that includes an inner housing having an inner space formed therein; a rotational shaft assembly supported in the inner housing and having a rotor and a bearing mounted on a rotational shaft thereof; a stator disposed to surround the rotor in the inner housing; an impeller connected to the rotational shaft; and an outer housing that surrounds an outer periphery of the inner housing and having an inlet body that guides air to the impeller. At least one heat dissipation vane is provided on an 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 at least one heat dissipation vane, the air having been moved by the impeller may efficiently absorb heat transferred from the stator to the at least one heat dissipation vane and more stably flow than when colliding against the stator and the rotor, and thus, may be quickly discharged.
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Patent Agency Ranking
公开(公告)号：US09713204B2
公开(公告)日：2017-07-18
申请号：US13835832
申请日：2013-03-15
Applicant: LG ELECTRONICS INC.
Inventor： Wontae Kim , Sungbae Song , Taeho Ji
CPC classification number: H05B6/80 , F24C15/2092 , H05B6/6423
Abstract: Provided is a microwave oven having a hood. The microwave oven having the hood includes a main body having a cooking chamber in which foods are cooked and a passage through which air containing contaminants flows, a hood casing disposed on a lower portion of the main body, a first hood taken out of the hood casing, a second hood tilted at a position different from that of the first hood, the second hood being taken out of the hood casing, and a tilting control device allowing or restricting tilting of the second hood due to a self-weight of the second hood.
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公开(公告)号：US11306730B2
公开(公告)日：2022-04-19
申请号：US16608047
申请日：2018-04-19
Applicant: LG Electronics Inc.
Inventor： Taekyung Kim , Seungjo Baek , Sungbae Song , Jeongho Lee , Younggyu Jung , Seongho Cho
Abstract: A fan motor includes: a motor housing; a rotating shaft; a rotor; a stator disposed outside the rotor; an impeller having at least one blade and a hub; and an impeller cover surrounding an outer circumference of the impeller and defining an air suction inlet. The impeller cover includes: a shroud having an inner diameter that expands in an air flow direction; and a non-metallic coating layer coated on an inner circumferential surface of the shroud and having a lower strength than the blade. The non-metallic coating layer includes: a first area having a first thickness; a second area having a second thickness thinner than the first thickness and defining a stepped portion with the first area, thereby minimizing leakage flow caused by the pressure difference from a pressure-side surface to a suction-side surface of the blade to reduce flow path loss and improving efficiency of the fan motor.
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公开(公告)号：US11230159B2
公开(公告)日：2022-01-25
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：US09998059B2
公开(公告)日：2018-06-12
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：US09526131B2
公开(公告)日：2016-12-20
申请号：US13929913
申请日：2013-06-28
Applicant: LG ELECTRONICS INC.
Inventor： Wontae Kim , Sungbae Song , Taeho Ji
IPC: H05B6/64
CPC classification number: H05B6/6423
Abstract: A microwave oven having a hood is provided. The microwave oven may more efficiently suction air containing contaminants, thereby more efficiently preventing diffusion of air containing contaminants. In addition, the microwave oven may tilt a tilting hood using a simplified construction.
Abstract translation: 提供具有罩的微波炉。 微波炉可以更有效地吸入含有污染物的空气，从而更有效地防止含有污染物的空气的扩散。 此外，微波炉可以使用简化的结构倾斜倾斜罩。
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