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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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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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25.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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Patent Agency Ranking
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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公开(公告)号：US10681780B2
公开(公告)日：2020-06-09
申请号：US15189536
申请日：2016-06-22
Applicant: LG ELECTRONICS INC.
Inventor： Dooyong Oh , Hyunwook Moon , Seungbok Ok , Byeongwook Park
Abstract: An electronic induction heat cooking apparatus includes a rectifier for rectifying an input voltage and outputting a direct current (DC) voltage; a plurality of switching elements for switching the DC voltage output through the rectifier; a plurality of heating coils for heating a cooking utensil by controlling the plurality of switching elements; a controller for controlling the plurality of switching elements according to a plurality of operation modes; and a supporting member in which at least one of the plurality of heating coils is mounted. The supporting member includes a coil insertion part, into which the heating coils are inserted, and the magnetic member is inserted into the supporting member to directly face the heating coils at the lower side of the heating coils.
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公开(公告)号：US10555379B2
公开(公告)日：2020-02-04
申请号：US15471217
申请日：2017-03-28
Applicant: LG ELECTRONICS INC.
Inventor： Wansoo Kim , Hyunwook Moon , Byungkyu Park , Yangkyeong Kim
Abstract: A hanger-type cooking information providing device is disclosed. The hanger-type cooking information providing device includes a clip portion including a water level sensor and configured to be hung on a cooking container, a contact portion including a temperature sensor configured to contact one lateral surface of the cooking container and to measure temperature, and a main body portion including a wireless communication module configured to wirelessly transmit, to an external device, at least one of water level information sensed by the water level sensor, temperature information sensed by the temperature sensor, water boiling notification information, information on elapsed cooking time, and information on remaining cooking time.
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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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