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公开(公告)号：US09967923B2
公开(公告)日：2018-05-08
申请号：US14235360
申请日：2012-10-24
Applicant: LG Electronics Inc.
Inventor： Hyunwook Moon , Byeongwook Park , Yangkyeong Kim
CPC classification number: H05B6/065 , H05B1/0266 , H05B6/062 , H05B6/1209
Abstract: A cooker, a method for controlling power of a cooker, and a power control system including the same are provided. A high power cooking device can be used without making an additional power construction work or causing a power circuit breaker installed in an input terminal of a household power source to be opened. Driving power of a burner is controlled or distributed by using a current flowing in a power circuit breaker or an overcurrent breaker installed in a load end, whereby power operation efficiency of an input power source can be enhanced and the input power source cannot be broken.
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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：US11785676B2
公开(公告)日：2023-10-10
申请号：US17178764
申请日：2021-02-18
Applicant: LG Electronics Inc.
Inventor： Jaewoo Lee , Hyunwook Moon , Hojae Seong
CPC classification number: H05B6/04 , H05B6/062 , H05B6/1236 , H05B6/1281
Abstract: A cooking apparatus includes: a receiving coil configured to receive power wirelessly, a first rectifier configured to rectify power transmitted from the receiving coil, a first DC capacitor connected to an output terminal of the first rectifier, a working coil, an inverter, a second DC capacitor connected to an input terminal of the inverter, and a filter circuit connected between the first DC capacitor and the second DC capacitor and configured to block a noise current that flows between the first DC capacitor and the second DC capacitor and that is associated with a predetermined frequency or a frequency higher than the predetermined frequency. The inverter is configured to convert power from the second DC capacitor into an alternating current and transmit the converted alternating current to the working coil.
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Patent Agency Ranking
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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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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18.发明授权公开(公告)号：US11419188B2
公开(公告)日：2022-08-16
申请号：US16643474
申请日：2018-08-13
Applicant: LG Electronics Inc.
Inventor： Seungbok Ok , Dooyong Oh , Hyunwook Moon , Byeong Wook Park
Abstract: An induction heating and wireless power transmitting apparatus includes a first group of working coils including a first working coil and a second working coil connected to each other in parallel, a first inverter that supplies resonant currents to at least one of the first working coil or the second working coil by performing a switching operation, a first semiconductor switch connected to the first working coil configured to turn on and turn off the first working coil, a second semiconductor switch connected to the second working coil and configured to turn on and turn off the second working coil, an auxiliary power supply configured to supply power to the first semiconductor switch and the second semiconductor switch, and a controller that controls the first inverter, the first semiconductor switch, and the second semiconductor switches.
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公开(公告)号：US11265972B2
公开(公告)日：2022-03-01
申请号：US16145403
申请日：2018-09-28
Applicant: LG Electronics Inc.
Inventor： Hyunwook Moon , Eui Sung Kim , Byungkyu Park , Jae-Woo Lee
Abstract: Disclosed is a support structure for an induction heating device that includes a working coil configured to heat an object. The support structure includes: a housing including an upper surface that is recessed do inward and that is configured to seat the object; a repeating coil that is located inside of the housing, that is configured to generate magnetic induction or magnetic resonance with the working coil, and that is configured to heat the object on the upper surface of the housing based on magnetic induction or magnetic resonance with the working coil; and a compensation capacitor located inside of the housing and connected to the repeating coil, where the compensation capacitor is configured to control output of the repeating coil.
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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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