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公开(公告)号：US11658515B2
公开(公告)日：2023-05-23
申请号：US17178775
申请日：2021-02-18
Applicant: LG Electronics Inc.
Inventor： Hyunwook Moon , Euisung Kim , Jaewoo Lee
Abstract: A wireless power transmission apparatus includes: a transmission coil configured to transmit power to a wireless power reception apparatus, an inverter that includes a plurality of switching elements and that is configured to output a current of a predetermined frequency to the transmission coil through an operation of the plurality of switching elements, and a controller. The controller can be configured to calculate an output level of power transmitted through the transmission coil, determine a load state of the wireless power reception apparatus based on a target level of power transmitted through the transmission coil and the calculated output level, and control the inverter based on the determined load state of the wireless power reception apparatus.
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2.发明授权公开(公告)号：US11271441B2
公开(公告)日：2022-03-08
申请号：US17178629
申请日：2021-02-18
Applicant: LG Electronics Inc.
Inventor： Jaewoo Lee , Hyunwook Moon , Euisung Kim
IPC: H02J50/80 , H02J7/00 , H02J50/12 , A47J43/046
Abstract: A system includes a wireless power transfer apparatus and a wireless power reception apparatus. The wireless power transfer apparatus includes a transmitting coil, an inverter including switching elements, and a first controller configured to calculate an output level of power transmitted through the transmitting coil, receive data on a target level for power transmitted through the transmitting coil from the wireless power reception apparatus, and control the inverter based on comparing the output level and the target level. The wireless power reception apparatus includes a receiving coil, a rectifier configured to rectify power transmitted from the receiving coil, a capacitor connected to the rectifier, and a second controller configured to calculate a voltage applied to the capacitor, determine the target level based on comparing the calculated voltage and a first reference voltage, and transmit the target level to the wireless power transfer apparatus.
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公开(公告)号：US10926991B2
公开(公告)日：2021-02-23
申请号：US15559610
申请日：2015-09-30
Applicant: LG ELECTRONICS INC.
Inventor： Sungyong Shin , Euisung Kim , Sunyoung Park
Abstract: A water dispensing apparatus includes a dispensing hole through which hot water is dispensed, a heating passage unit communicating with the dispensing hole; a heating unit for heating water flowing through the heating passage unit, an input unit for inputting a hot water dispensing command for dispensing the hot water through the dispensing hole, a hot water valve for adjusting a flow of the hot water heated in the heating passage unit, and a controller for controlling the heating unit.
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公开(公告)号：US11949246B2
公开(公告)日：2024-04-02
申请号：US18139806
申请日：2023-04-26
Applicant: LG Electronics Inc.
Inventor： Hyunwook Moon , Euisung Kim , Jaewoo Lee
Abstract: A wireless power transmission apparatus includes: a transmission coil configured to transmit power to a wireless power reception apparatus, an inverter that includes a plurality of switching elements and that is configured to output a current of a predetermined frequency to the transmission coil through an operation of the plurality of switching elements, and a controller. The controller can be configured to calculate an output level of power transmitted through the transmission coil, determine a load state of the wireless power reception apparatus based on a target level of power transmitted through the transmission coil and the calculated output level, and control the inverter based on the determined load state of the wireless power reception apparatus.
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公开(公告)号：US11133710B2
公开(公告)日：2021-09-28
申请号：US17044302
申请日：2019-04-09
Applicant: LG ELECTRONICS INC.
Inventor： Hyunwook Moon , Yangkyeong Kim , Euisung Kim , Hojae Sung
IPC: H02J7/02 , H04B5/00 , H02J50/10 , H02J50/70 , H02J50/80 , H02J50/40 , H01F27/36 , H02J50/60 , H01F38/14
Abstract: The present disclosure relates to a wireless power reception device and method, and provides a wireless power reception device comprising: a secondary coil which is magnetically coupled to a primary coil disposed in a wireless power transmission device so as to receive wireless power from the wireless power transmission device; a shielding member for supporting the secondary coil; a power pickup unit including a rectifier circuit for rectifying an alternating current signal according to the wireless power received by the secondary coil into a direct current signal; and a communication/control unit for controlling transmission of the wireless power and communicating with the wireless power transmission device. On the basis of a secondary coil and a shielding member according to the present embodiment, slimming of an applied product can be achieved and, simultaneously, the same target performance index (which is required for the standard medium power level (for example, 60W)) can be implemented.
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Patent Agency Ranking
公开(公告)号：US10424940B2
公开(公告)日：2019-09-24
申请号：US15470100
申请日：2017-03-27
Applicant: LG ELECTRONICS INC.
Inventor： Hyeunsik Nam , Euisung Kim , Wonchul Choi , Hyunwook Moon , Byungkyu Park
IPC: H02J7/02 , H02J5/00 , A47B31/02 , G06K9/00 , G07F17/32 , H01F38/14 , H02J7/00 , H05B6/06 , H05B6/12 , H02J50/10
Abstract: A smart table is disclosed. The smart table includes a plate, an inverter configured to convert direct current (DC) power into alternative current (AC) power and to supply the AC power, a coil unit disposed below the plate and including a plurality of working coils heated by the AC power, a radio frequency identification (RFID) reader configured to recognize an RFID tag of a home appliance placed on the plate and to receive information on the home appliance from the RFID tag, and a processor configured to drive one or more of the plurality of working coils as wireless power transmission coils to perform control to transmit wireless power to the home appliance based on the received information.
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公开(公告)号：US12232243B2
公开(公告)日：2025-02-18
申请号：US17186747
申请日：2021-02-26
Applicant: LG Electronics Inc.
Inventor： Hyunwook Moon , Euisung Kim , Yangkyeong Kim
Abstract: A wireless power transmission apparatus for induction heating includes: a working coil that is configured to change operation based on selection of a mode of operation from among a plurality of operating modes, the plurality of operating modes including a wireless power transmission mode configured to wirelessly transmit power and a heating mode configured to heat one or more objects, an inverter that is configured to output, to the working coil, current at an operation frequency, and a controller. The controller is configured to calculate an eccentricity degree between the working coil and a reception coil of a target object and control, in the wireless power transmission mode, the operation frequency based on the calculated eccentricity degree in a preparation period prior to wireless power transmission to the target object.
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公开(公告)号：US12213235B2
公开(公告)日：2025-01-28
申请号：US17186923
申请日：2021-02-26
Applicant: LG Electronics Inc.
Inventor： Hyunwook Moon , Euisung Kim , Yangkyeong Kim
Abstract: A wireless power transmission apparatus for induction heating includes: a working coil that is configured to change operation based on selection of a mode of operation from among a plurality of operating modes, the plurality of operating modes including a wireless power transmission mode configured to wirelessly transmit power and a heating mode configured to heat one or more objects, an inverter that is configured to output, to the working coil, current at an operation frequency, and a controller. The controller is configured to detect a target object, and determine, in the wireless power transmission mode, whether the target object is (i) a device from among a first group of devices including a device with a reception coil or (ii) an induction heating device.
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公开(公告)号：US11895758B2
公开(公告)日：2024-02-06
申请号：US17178991
申请日：2021-02-18
Applicant: LG Electronics Inc.
Inventor： Euisung Kim , Jaewoo Lee , Hyunwook Moon
CPC classification number: H05B6/04 , H05B6/062 , H05B6/08 , H05B6/1281
Abstract: A cooking apparatus includes: a working coil, an inverter configured to output a resonant current to the working coil, a current detector configured to detect the resonant current and output a detection value corresponding to the resonant current, and a controller. The controller is configured to control the inverter to flow a first resonant current through the working coil, control the inverter to flow, through the working coil, a second resonant current having a frequency different from the first resonant current, and determine, based on a difference between a first detection value for the first resonant current and a second detection value for the second resonant current, whether a target object that is located adjacent to the working coil is a predetermined object.
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公开(公告)号：US10727675B2
公开(公告)日：2020-07-28
申请号：US16579199
申请日：2019-09-23
Applicant: LG ELECTRONICS INC.
Inventor： Hyeunsik Nam , Euisung Kim , Wonchul Choi , Hyunwook Moon , Byungkyu Park
IPC: H02J5/00 , H02J50/10 , H05B6/06 , H05B6/12 , A47B31/02 , G06K9/00 , G07F17/32 , H01F38/14 , H02J7/00 , H02J7/02
Abstract: A smart table is disclosed. The smart table includes a plate, an inverter configured to convert direct current (DC) power into alternative current (AC) power and to supply the AC power, a coil unit disposed below the plate and including a plurality of working coils heated by the AC power, a radio frequency identification (RFID) reader configured to recognize an RFID tag of a home appliance placed on the plate and to receive information on the home appliance from the RFID tag, and a processor configured to drive one or more of the plurality of working coils as wireless power transmission coils to perform control to transmit wireless power to the home appliance based on the received information.
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