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公开(公告)号：US20240215124A1
公开(公告)日：2024-06-27
申请号：US18288904
申请日：2022-03-21
Applicant: LG ELECTRONICS INC.
Inventor： Younghwan KWACK , Seongho SON , Seonho JEON , Chuhyoung CHO , Jongseong JI , Jaekyung YANG , Yongsoo LEE
CPC classification number: H05B6/1272 , H05B6/065
Abstract: An induction heating type cooktop can include an upper plate configured to support an object to be heated, an intermediate heating element overlapping with the upper plate, a plurality of working coils configured to generate magnetic fields that pass through at least one of the object or the intermediate heating element, and a resonance capacitor configured to resonate with one or more of the plurality of working coils. Also, the induction heating type cooktop can include an inverter configured to apply current to at least one of the plurality of working coils and a switch configured to selectively connect at least one of the plurality of working coils to the inverter.
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公开(公告)号：US20220373187A1
公开(公告)日：2022-11-24
申请号：US17881246
申请日：2022-08-04
Applicant: LG Electronics Inc.
Inventor： Wontae KIM , Seongho SON , Jaekyung YANG , Yongsoo LEE , Hyunwoo JUN
Abstract: An induction heating type cooktop includes a case, a cover plate that is coupled to an upper end of the case and that includes an upper plate configured to seat an object on an upper surface of the upper plate, a working coil disposed in the case and configured to heat the object, a thin film attached on the upper plate, and a thermal insulating member disposed vertically between a lower surface of the upper plate and the working coil.
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公开(公告)号：US20210267026A1
公开(公告)日：2021-08-26
申请号：US16903973
申请日：2020-06-17
Applicant: LG Electronics Inc.
Inventor： Wontae KIM , Hyunwoo JUN , Jaekyung YANG , Sunghun SIM , Seongho SON
Abstract: A cooking appliance includes a housing that defines a cavity therein, a door connected to the housing and configured to open and close the cavity, a microwave (MW) heating module configured to emit microwaves into the cavity, and an induction heating (IH) module configured to emit a magnetic field towards the cavity. The IH module includes a working coil that is configured to generate the magnetic field and a thin film that is disposed between the cavity and the working coil.
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14.发明申请公开(公告)号：US20200158905A1
公开(公告)日：2020-05-21
申请号：US16687940
申请日：2019-11-19
Applicant: LG Electronics Inc.
Inventor： Younghwan KWACK , Seongho SON , Jaekyung YANG , Yongsoo LEE
Abstract: A method controls an induction heating device that is configured to operate based on a multi-phase power supply and that includes a working coil configured to heat an object and a controller configured to detect the object. The method includes: receiving voltage information related to a first input voltage and a second input voltage that are supplied by the multi-phase power supply and that have different phases from each other; selecting a reference voltage among the first input voltage and the second input voltage based on the voltage information; determining a detection time point, which corresponds to a time instant at which a detection operation is to be performed for detecting the object on the working coil, based on the reference voltage; and performing the detection operation at the detection time point.
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公开(公告)号：US20190327794A1
公开(公告)日：2019-10-24
申请号：US16196559
申请日：2018-11-20
Applicant: LG Electronics Inc.
Inventor： Younghwan KWACK , Seongho SON , Jaekyung YANG , Yongsoo LEE
Abstract: An induction heating device includes: a working coil set including a first working coil connected to a first resonant capacitor and a second working coil connected to a second resonant capacitor; an inverter that performs a switching operation to apply a resonant current to at least one of the first or second working coil; a current transformer that adjusts a magnitude of the resonant current and that transmits the resonant current having the adjusted magnitude to the working coil set; a first relay that selectively connects a first end of the second working coil to the current transformer or the second resonant capacitor; a second relay that selectively connects a to second end of the second working coil to an end of the first working coil or the second resonant capacitor; and a control unit configured to control operations of the inverter and the first and second relays, respectively.
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Patent Agency Ranking
公开(公告)号：US20190306929A1
公开(公告)日：2019-10-03
申请号：US16198168
申请日：2018-11-21
Applicant: LG Electronics Inc.
Inventor： Seongjun KIM , Seongho SON , Jaekyung YANG , Yongsoo LEE
Abstract: An induction heating device includes: a working coil that includes an annularly-coiled conductive wire and that defines an annular coil hole at a central region of the working coil; a ferrite core that is located vertically below the working coil and that defines a core hole at a central region of the ferrite core corresponding to the annular coil hole; and an indicator board support that is located vertically below the ferrite core. The indicator board support includes a hook that extends to the core hole in a vertical direction and that is configured to insert into the core hole.
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公开(公告)号：US20250098039A1
公开(公告)日：2025-03-20
申请号：US18726554
申请日：2022-05-25
Applicant: LG Electronics Inc.
Inventor： Chuhyoung CHO , Seongho SON , Younghwan KWACK , Seonho JEON , Jongseong JI
Abstract: Provided is an induction heating type cooktop provided with an intermediate heating body to improve heating efficiency with respect to a magnetic body and a nonmagnetic body. The induction heating type cooktop includes an upper plate, on which an object to be heated is disposed, an intermediate heating body installed on the upper plate, a working coil configured to generate magnetic fields for heating the object to be heated, an inverter driven to supply current to the working coil, and a shielding coil in which the current is selectively induced according to kinds of object to be heated.
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公开(公告)号：US20230363061A1
公开(公告)日：2023-11-09
申请号：US18142826
申请日：2023-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Younghwan KWACK , Seongho SON
CPC classification number: H05B6/1272 , H05B6/062 , H05B2206/022
Abstract: A cooking appliance includes a coil height adjustor configured to adjust a height of a working coil or a plurality of working coils located at different height and an inverter configured to control the current flow through the working coil or at least one working coil of the plurality of working coils.
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公开(公告)号：US20230354484A1
公开(公告)日：2023-11-02
申请号：US18142346
申请日：2023-05-02
Applicant: LG ELECTRONICS INC.
Inventor： Younghwan KWACK , Seongho SON
CPC classification number: H05B6/065 , H05B6/1272
Abstract: A cooking appliance includes an upper plate configured to support an object to be heated, a first intermediate heating body located at the upper plate, a plurality of working coils configured to generate magnetic fields coupled to at least one of the object to be heated and the first intermediate heating body, an inverter configured to apply current to the plurality of working coils, and a controller configured to control the inverter so that at least one of the plurality of working coils does not operate in a portion of a cycle in a first heating mode.
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20.发明公开公开(公告)号：US20230292411A1
公开(公告)日：2023-09-14
申请号：US18020387
申请日：2020-12-15
Applicant: LG ELECTRONICS INC.
Inventor： Younghwan KWACK , Seongho SON , Seonho JEON , Chuhyoung CHO , Jongseong JI
IPC: H05B6/12
CPC classification number: H05B6/1218 , H05B6/1236 , H02M5/4585
Abstract: The present disclosure includes an induction heating cooktop and a wireless indicator for indicating an operation state of the cooktop, the wireless indicator comprising: a closed loop coil; and a light-emitting device driven by a voltage which is induced in the closed loop coil through an induced magnetic field generated by a working coil of the cooktop.
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