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    INDUCTION HEATING TYPE COOKTOP HAVING IMPROVED USABILITY
    32.
    发明公开
    INDUCTION HEATING TYPE COOKTOP HAVING IMPROVED USABILITY 审中-公开

    公开(公告)号：EP3869914A1

    公开(公告)日：2021-08-25

    申请号：EP21157882.8

    申请日：2021-02-18

    Applicant: LG Electronics Inc.

    Inventor： KIM, Juwon ,  JANG, Eunjin ,  HWANG, Jongwon ,  LEE, Yongsoo ,  JUN, Hyunwoo ,  YANG, Jaekyung

    IPC: H05B6/06 ,  H05B6/12

    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 arranged to receive a target object, a working coil that is disposed in the case and that is configured to heat the target object, a thermal insulation material disposed on the working coil, and a heating thin film coating that is disposed on a surface of the upper plate of the cover plate or a surface of the thermal insulation material and that has a stacked structure in which an adhesive layer and a heating layer are consecutively stacked.

    INDUCTION HEATING DEVICE HAVING IMPROVED ASSEMBLABILITY AND COOLING PERFORMANCE
    35.
    发明公开
    INDUCTION HEATING DEVICE HAVING IMPROVED ASSEMBLABILITY AND COOLING PERFORMANCE 审中-公开

    公开(公告)号：EP3737212A1

    公开(公告)日：2020-11-11

    申请号：EP20171275.9

    申请日：2020-04-24

    Applicant: LG Electronics Inc.

    Inventor： KIM, Seongjun ,  LEE, Yongsoo

    IPC: H05B6/12

    Abstract: An induction heating device includes a case, a working coil, a base plate that is disposed vertically below the working coil, an indicator substrate support that is coupled to the case and that is disposed vertically below the base plate, an indicator substrate that is disposed on an upper surface of the indicator substrate support, that is disposed vertically below the base plate, and that is spaced apart from the base plate, an inverter substrate that is disposed at a lower surface of the indicator substrate support and that includes an inverter configured to apply a resonance current to the working coil through a switching operation, and a resonance substrate that is disposed at the lower surface of the indicator substrate support, that is connected to the working coil, and that includes a resonance capacitor configured to generate the resonance current based on the switching operation of the inverter.

    INDUCTION HEATING DEVICE HAVING IMPROVED COOLING STRUCTURE
    36.
    发明公开
    INDUCTION HEATING DEVICE HAVING IMPROVED COOLING STRUCTURE 审中-公开

    公开(公告)号：EP3684142A2

    公开(公告)日：2020-07-22

    申请号：EP20160531.8

    申请日：2018-11-08

    Applicant: LG Electronics Inc.

    Inventor： SIM, Hoon Seob ,  YANG, Jaekyung ,  LEE, Se Mi ,  LEE, Yongsoo ,  LIM, Hakjoo

    IPC: H05B6/12 ,  F24C15/10

    Abstract: The present disclosure relates to an induction heating device with an improved cooling structure. An induction heating device includes a casing; a first induction heating module disposed within the casing; a first heat sink disposed below the first induction heating module to dissipate heat from the first induction heating module; a first heat pipe passing through the first heat sink and extending out of the first induction heating module to discharge the heat dissipated from the first heat sink out of the first induction heating module; an air-discharge fan disposed at one end of an inner edge of the casing to discharge air inside the casing out of the casing; and a cooling fan disposed at another end of the inner edge of the casing to blow air to the air-discharge fan, wherein the first end is opposite to the second end, wherein one end of the first heat pipe protruding out of the first induction heating module is disposed on an air-flow path between the cooling fan and the air-discharge fan.

    INDUCTION HEATING DEVICE HAVING NEGATIVE VOLTAGE PROTECTION CIRCUIT
    37.
    发明公开
    INDUCTION HEATING DEVICE HAVING NEGATIVE VOLTAGE PROTECTION CIRCUIT 审中-公开

    公开(公告)号：EP3651547A1

    公开(公告)日：2020-05-13

    申请号：EP19194342.2

    申请日：2019-08-29

    Applicant: LG Electronics Inc.

    Inventor： KWACK, Younghwan ,  SO, Seongho ,  YANG, Jaekyung ,  LEE, Yongsoo

    IPC: H05B6/06

    Abstract: An induction heating device includes a working coil, an inverter including a first switching element and a second switching element; a gate driver including a first sub-gate driver and a second sub-gate driver; and a protection circuit disposed between the inverter and the gate driver. The protection circuit includes a first resistor disposed between a gate terminal of the first switching element and an output terminal of the first sub-gate driver, a second resistor connected electrically in parallel to the first resistor, a protection circuit resistor disposed between a reference voltage terminal of the first sub-gate driver and a first node between the first switching element and the second switching element, a protection circuit diode disposed between a ground and a second node between the protection circuit resistance and the reference voltage terminal, and a bootstrap circuit disposed between the second node and the external power supply.

    COOKING APPLIANCE
    38.
    发明公开
    COOKING APPLIANCE 审中-公开

    公开(公告)号：EP3627965A1

    公开(公告)日：2020-03-25

    申请号：EP18802257.8

    申请日：2018-05-16

    Applicant: LG Electronics Inc.

    Inventor： LIM, Hakjoo ,  YANG, Jaekyung ,  LEE, Soochan ,  LEE, Yongsoo

    IPC: H05B6/12 ,  A47J27/04 ,  H05B6/36

    Abstract: A cooking appliance according to an embodiment of the present invention may comprise: a case in which a cooking chamber is formed; a door for opening or closing the front opening of the case; a steam generating device mounted to the outer surface of the case; and a steam supply tube for connecting the steam generating device to the cooking chamber, wherein the steam generating device includes: a housing fixed to the case; a drawer which can be pushed into and pulled out of the housing and is filled with water for steam generation; and an induction unit installed at the bottom of the housing so as to heat water filled in the drawer by using electromagnetic induction.

    METHOD FOR SENSING CONTAINER USING RESONANT CURRENT
    39.
    发明公开
    METHOD FOR SENSING CONTAINER USING RESONANT CURRENT 审中-公开

    公开(公告)号：EP3598849A1

    公开(公告)日：2020-01-22

    申请号：EP19165194.2

    申请日：2019-03-26

    Applicant: LG Electronics Inc.

    Inventor： KWACK, Younghwan ,  SON, Seongho ,  YANG, Jaekyung ,  LEE, Yongsoo

    IPC: H05B6/06

    Abstract: A method for sensing a container includes: charging an induction heating circuit; sensing a current applied to the induction heating circuit, converting a current value of the current into a first voltage value; comparing the first voltage value with a resonance reference value; generating a resonance of the current; sensing a resonant current generated in the induction heating circuit; converting the resonant current into a second voltage value; comparing the second voltage value with a count reference value; generating one or more output pulses; comparing a count of the one or more output pulses with a reference count, or comparing an on-duty time of the one or more output pulses with a reference time; and based on (i) the comparison of the count with the reference count or (ii) the comparison of the on-duty time with the reference time, determining whether an object is present on a working coil.

    SHELF SUPPORT DEVICE AND COOKING APPLIANCE WITH THE SAME
    40.
    发明公开
    SHELF SUPPORT DEVICE AND COOKING APPLIANCE WITH THE SAME 审中-公开

    公开(公告)号：EP3591296A1

    公开(公告)日：2020-01-08

    申请号：EP19186740.7

    申请日：2018-07-30

    Applicant: LG ELECTRONICS INC.

    Inventor： PARK, Kyoung-Joon ,  SIM, Hoon Seob ,  YANG, Jaekyung ,  LEE, Suyong ,  LEE, Yongsoo ,  LEE, Yong Hyun

    IPC: F24C15/16 ,  A47B77/10 ,  A47B88/90

    Abstract: The present disclosure relates a shelf support device and a cooking appliance with the same. The shelf support device includes a rail extending in forward and backward directions to locate a front end portion over a rear end portion, including an upper surface portion and a lower surface portion; and a support unit at which a shelf is mounted at an upper portion of the support unit, coupled to the rail to be movable along the movement path formed by each of the upper surface portion and the lower surface portion, and configured to change a position of the shelf in an upward direction when being moved in the forward direction and the position of the shelf in a downward direction when being moved in the backward direction.

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