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    INDUCTION HEATING DEVICE WITH IMPROVED CONTROL ALGORITHM
    1.
    发明申请
    INDUCTION HEATING DEVICE WITH IMPROVED CONTROL ALGORITHM 有权

    公开(公告)号：US20210127459A1

    公开(公告)日：2021-04-29

    申请号：US16766595

    申请日：2018-11-28

    Applicant: LG Electronics Inc.

    Inventor： Seungbok OK ,  Byeong Wook PARK ,  Jae-Woo LEE

    IPC: H05B6/06 ,  H05B6/12

    Abstract: An induction heating device includes a working coil group including a first working coil and a second working coil that are electrically connected in parallel to each other, an inverter configured to perform a switching operation to supply resonance current to at least one of the first or second working coil; a first semiconductor switch electrically connected to the first working coil to turn on and turn off the first working coil; a second semiconductor switch electrically connected to the second working coil to turn on and turn off the second working coil; and a controller configured to control operation of the inverter and the first and second semiconductor switches, respectively. The controller turns off the inverter before turning off at least one of the first semiconductor switch or the second semiconductor switch.

    SUPPORT STRUCTURE FOR OBJECT TO BE HEATED
    2.
    发明申请
    SUPPORT STRUCTURE FOR OBJECT TO BE HEATED 审中-公开

    公开(公告)号：US20190104570A1

    公开(公告)日：2019-04-04

    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

    IPC: H05B6/06 ,  H02J50/10 ,  H05B6/12 ,  H05B6/36

    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.

    INDUCTION HEATING DEVICE HAVING IMPROVED USER EXPERIENCE AND USER INTERFACE
    3.
    发明申请
    INDUCTION HEATING DEVICE HAVING IMPROVED USER EXPERIENCE AND USER INTERFACE 审中-公开

    公开(公告)号：US20200337121A1

    公开(公告)日：2020-10-22

    申请号：US16712016

    申请日：2019-12-12

    Applicant: LG Electronics Inc.

    Inventor： Jae-Woo LEE ,  Seongjun KIM ,  Seungbok OK

    IPC: H05B6/06 ,  H05B6/44 ,  H05B6/12 ,  H05B1/02 ,  G06F3/0488

    Abstract: An induction heating device includes a case, working coils, a cover plate, an input interface, a first control module configured to detect one or more of the working coils at a position of an object seated on the cover plate, a second control module configured to receive information on the position of the object and control the input interface to display an image of a heating zone, and light emitting elements disposed below a periphery of each of the plurality of working coils. The second control module is configured to analyze an arrangement form of the one or more of the working coils based on the information on the position of the object, and control driving of at least one of the light emitting elements based on a result of analyzing the arrangement form.

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