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    Induction heating device having improved control algorithm and circuit structure
    4.
    发明授权
    Induction heating device having improved control algorithm and circuit structure 有权

    公开(公告)号：US11265973B2

    公开(公告)日：2022-03-01

    申请号：US16180593

    申请日：2018-11-05

    Applicant: LG Electronics Inc.

    Inventor： Younghwan Kwack ,  Seongho Son ,  Jaekyung Yang ,  Yongsoo Lee

    IPC: H05B6/06 ,  H05B6/12

    Abstract: An induction heating device includes: a first board including a first working coil, a first inverter configured to apply a resonant current to the first working coil, a first current transformer configured to adjusting a magnitude of the first resonant current, a first control unit configured to control the first inverter; and a second board including a second working coil, a second inverter configured to apply a resonant current to the second working coil, a second current transformer configured to adjust a magnitude of the second resonant current, a first relay configured to selectively connect the second working coil to the second current transformer or to the first working coil, a second relay configured to selectively connect the second working coil to the first working coil or to the second resonant capacitor, and a second control unit configure to control the second inverter, the first relay, and the second relay.

    Induction heating device having improved control algorithm and circuit structure
    5.
    发明授权
    Induction heating device having improved control algorithm and circuit structure 有权

    公开(公告)号：US11064577B2

    公开(公告)日：2021-07-13

    申请号：US16196559

    申请日：2018-11-20

    Applicant: LG Electronics Inc.

    Inventor： Younghwan Kwack ,  Seongho Son ,  Jaekyung Yang ,  Yongsoo Lee

    IPC: H05B6/06 ,  H05B6/12 ,  H05B6/40 ,  H02M3/24

    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.

    Shelf support device and cooking appliance with the same
    6.
    发明授权
    Shelf support device and cooking appliance with the same 有权

    公开(公告)号：US10852004B2

    公开(公告)日：2020-12-01

    申请号：US16052840

    申请日：2018-08-02

    Applicant: LG Electronics Inc.

    Inventor： Kyoung-Joon Park ,  Hoon Seob Sim ,  Jaekyung Yang ,  Suyong Lee ,  Yongsoo Lee ,  Yong Hyun Lee

    IPC: F24C15/16 ,  F25D25/02 ,  A47L15/50 ,  A47B88/90 ,  A47B77/10

    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.

    Steam generator and cooking apparatus including same
    8.
    发明授权
    Steam generator and cooking apparatus including same 有权

    公开(公告)号：US11466862B2

    公开(公告)日：2022-10-11

    申请号：US16482927

    申请日：2018-01-30

    Applicant: LG Electronics Inc.

    Inventor： Eunkyoung Yoon ,  Jaekyung Yang ,  Hakjoo Lim ,  Yongsoo Lee

    IPC: F24C15/00 ,  A47J27/04 ,  F22B1/28 ,  F22B37/26 ,  F22D5/34 ,  F24C7/08 ,  F22B37/38 ,  F22B37/70 ,  F22B37/30 ,  F24C15/02 ,  F22B35/10

    Abstract: A steam generator and a cooking device including the same, according to an embodiment of the present invention may include a water supply pipe into which steam water is introduced, a heating chamber having a chamber body and a chamber cover, and a steam heater configured to provide heat, wherein the steam heater is provided to be embedded in the chamber body and the chamber body includes a plurality of partition walls protruding in one direction along an inner peripheral surface to form a Z-shaped steam flow path through which supply water introduced into the chamber body and steam generated by heating the supply water flow. Therefore, the heat transfer, which had been concentrated only in a predetermined region, may be dispersed by the flow path formed in the chamber body, thereby stably generating the steam even in repetitive steam generation operation.

    Steam generator
    9.
    发明授权
    Steam generator 有权

    公开(公告)号：US11197571B2

    公开(公告)日：2021-12-14

    申请号：US16299945

    申请日：2019-03-12

    Applicant: LG ELECTRONICS INC.

    Inventor： Hakjoo Lim ,  Jaekyung Yang ,  Suyong Lee ,  Soochan Lee ,  Yongsoo Lee

    IPC: A47J27/04 ,  F22B1/28 ,  F22B37/60

    Abstract: A steam generator includes: a base module which has a water supply port for receiving steam water; and a steam module which is connected to an upper side of the base module, in which the steam module includes: a main body which has an upper surface and a lower surface; a flow pipe which is positioned at a central portion of the main body and into which the steam water flows; and a heater which supplies heat to the flow pipe, and in which another steam module is selectively coupled to an upper side of the steam module. According to this, the internal volume of the steam generator and the output of the heater provided in the steam generator can be selectively varied so as to provide an optimum output according to the volume of a cooking device in which the steam generator is installed.

    Cooking appliance
    10.
    发明授权
    Cooking appliance 有权

    公开(公告)号：US11166467B2

    公开(公告)日：2021-11-09

    申请号：US16354734

    申请日：2019-03-15

    Applicant: LG ELECTRONICS INC.

    Inventor： Haksoon Yang ,  Jaekyung Yang ,  Yongsoo Lee ,  Yonghyun Lee ,  Yoojin Jung

    IPC: A21B3/04 ,  A47J27/04 ,  H05B6/64 ,  A23L5/10 ,  A47J36/24 ,  F24C15/32

    Abstract: A cooking appliance includes a frame that defines a cooking chamber, a steam generator coupled to the frame and configured to generate steam, and a steam supply port that is connected to the steam generator, that extends through a sidewall of the frame to the cooking chamber, and that is configured to guide steam from the steam generator to the cooking chamber. The steam supply port includes a first pipe having a first diameter, a second pipe located inside of the cooking chamber, the second pipe having a second diameter that is less than the first diameter, and a connection pipe configured to connect the first pipe to the second pipe.

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