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公开(公告)号：US20240060653A1
公开(公告)日：2024-02-22
申请号：US18270337
申请日：2021-01-29
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok OK , Dooyong OH , Hojae SEONG , Byeongwook PARK
CPC classification number: F24C15/102 , F24C7/087 , H05B6/1209 , H05B2213/07
Abstract: A cooktop can include a top plate glass configured to support placement of a cooking container; a memory configured to store a plurality of regression models indicating a relationship between a temperature of the top plate glass and a cooking temperature of the cooking container; a temperature sensor configured to sense the temperature of the top plate glass when operating in a heating mode and output a sensing value; and a processor. Also, the processor can be configured to select a regression model from among the plurality of regression models based on the sensing value of the temperature sensor, and calculate the cooking temperature of the cooking container based on the regression model.
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2.发明公开公开(公告)号：US20230284346A1
公开(公告)日：2023-09-07
申请号：US18196840
申请日：2023-05-12
Applicant: LG Electronics Inc.
Inventor： Dooyong OH , Byeong Wook PARK , Seungbok OK , Jae-Woo LEE
Abstract: An induction heating device includes a working coil and a resonance capacitor, an inverter that performs a switching operation to supply a resonance current to the working coil, a plurality of snubber capacitors electrically connected to the inverter, a direct current (DC) link capacitor electrically connected to the inverter, and a relay configured to electrically connect one of the plurality of snubber capacitors to the DC link capacitor or the resonance.
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3.发明申请公开(公告)号：US20210084721A1
公开(公告)日：2021-03-18
申请号：US16934891
申请日：2020-07-21
Applicant: LG Electronics Inc.
Inventor： Kyung Hoon JUNG , Dooyong OH , Byeong Wook PARK
Abstract: An induction heating device includes: a working coil, an inverter, a current transformer, a current detecting circuit, a voltage detecting circuit, an AND circuit, and a controller. The induction heating device may detect presence or absence of an object and a material of the object based on a magnitude of resonance current applied to the working coil and a phase difference between the resonance current and a voltage applied to a switching element of the inverter.
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公开(公告)号：US20210195698A1
公开(公告)日：2021-06-24
申请号：US16768528
申请日：2019-01-09
Applicant: LG Electronics Inc.
Inventor： Hyunwook MOON , Eui Sung KIM , Dooyong OH
Abstract: A cooking apparatus includes an upper plate configured to support a cooking vessel, a heating module that is movably disposed in a space under the upper plate and that includes a coil, a substrate that is disposed between the upper plate and the heating module and that includes a plurality of coil patterns, an inverter configured to supply a resonance current to each of the plurality of coil patterns, and a controller configured to control the heating module, the substrate, and the inverter. The controller determines a position of the cooking vessel on the upper plate based on the number or a frequency of pulses of resonance current supplied to each of the plurality of coil patterns. The cooking apparatus recognizes the position of the cooking vessel disposed on the cooking apparatus and moves the heating module to the recognized position.
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公开(公告)号：US20210176832A1
公开(公告)日：2021-06-10
申请号：US17116537
申请日：2020-12-09
Applicant: LG Electronics Inc.
Inventor： Dooyong OH , Seungbok OK , Kyunghoon JUNG , Byeongwook PARK
Abstract: A cooking apparatus includes: a working coil, an inverter including a plurality of switching elements and configured to apply, by operating the plurality of switching elements, a resonant current of a predetermined frequency to the working coil, a phase detector configured to detect a phase difference between the resonant current and a voltage applied to an output terminal of the inverter, and a controller configured to calculate, based on the detected phase difference, a temperature of a target object that is placed above the working coil.
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Patent Agency Ranking
公开(公告)号：US20210084722A1
公开(公告)日：2021-03-18
申请号：US17018842
申请日：2020-09-11
Applicant: LG Electronics Inc.
Inventor： Kyung Hoon JUNG , Dooyong OH , Byeong Wook PARK
Abstract: An induction heating device includes a working coil, an inverter including a first switching element and a second switching element that are configured to perform a switching operation and to apply a resonance current to the working coil, a snubber capacitor including a first snubber capacitor connected to the first switching element, and a second snubber capacitor connected to the second switching element, a phase detector configured to detect a phase difference between the resonance current applied to the working coil and a switching voltage applied to the second switching element, and a controller configured to receive, from the phase detector, phase information including the phase difference, provide the inverter with a switching signal to thereby control the switching operation, and adjust an operating frequency of the switching signal based on the phase information to thereby control an output of the working coil.
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公开(公告)号：US20250031284A1
公开(公告)日：2025-01-23
申请号：US18713906
申请日：2022-03-29
Applicant: LG ELECTRONICS INC.
Inventor： Hojae SEONG , Dooyong OH , Seungbok OK , Byeongwook PARK
Abstract: The present disclosure is intended to provide an induction heating type cooktop that detects overheating of a cooking vessel regardless of the amount of water or the material of the vessel, comprising an upper plate part on which a cooking vessel is placed, a working coil configured to generate a magnetic field passing through the cooking vessel, an inverter configured to supply current to the working coil, and a controller configured to detect whether the cooking vessel is overheated, wherein the controller is configured to detect whether the cooking vessel is overheated using load impedance.
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公开(公告)号：US20210204367A1
公开(公告)日：2021-07-01
申请号：US16757718
申请日：2018-11-28
Applicant: LG Electronics Inc.
Inventor： Jae-Woo LEE , Byeong Wook PARK , Dooyong OH , Seungbok OK
Abstract: An induction heating apparatus includes a working coil; an inverter configured to perform switching operation to thereby apply a resonance current to the working coil; and a controller configured to provide a control signal with a fixed frequency to the inverter to thereby control the switching operation. The controller changes a pulse width of the control signal based on a predetermined cycle that is set based on a temperature of the inverter.
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9.发明申请公开(公告)号：US20200337120A1
公开(公告)日：2020-10-22
申请号：US16956311
申请日：2018-11-28
Applicant: LG Electronics Inc.
Inventor： Dooyong OH , Byeong Wook PARK , Seungbok OK , Jae-Woo LEE
Abstract: An induction heating device includes a working coil and a resonance capacitor, an inverter that performs a switching operation to supply a resonance current to the working coil, a plurality of snubber capacitors electrically connected to the inverter, a direct current (DC) link capacitor electrically connected to the inverter, and a relay configured to electrically connect one of the plurality of snubber capacitors to the DC link capacitor or the resonance capacitor.
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公开(公告)号：US20200059996A1
公开(公告)日：2020-02-20
申请号：US16487611
申请日：2018-02-23
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok OK , Byeong Wook PARK , Dooyong OH
Abstract: Disclosed herein is an induction-heating cooking apparatus that includes a sensing circuit for controlling an output of a heating coil, and more specifically, to an induction-heating cooking apparatus capable of enhancing accuracy in measuring electric currents of a heating coil by simply modifying a circuit. The induction-heating cooking apparatus includes a control unit calculating an output of a heating coil on the basis of electric currents measured by a sensor supplying alternating current power.
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