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

IPC: F24C7/08 ,  H05B3/74 ,  H05B6/10 ,  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 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.

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

IPC: H05B6/64 ,  H05B6/70 ,  H05B6/12 ,  H05B6/10 ,  H05B3/00

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.

公开(公告)号：US20210025596A1

公开(公告)日：2021-01-28

申请号：US17040442

申请日：2019-04-01

Applicant: LG Electronics Inc.

Inventor： Yonghyun LEE ,  Jaekyung YANG ,  Semi LEE ,  Yongsoo LEE ,  Yoojin JUNG

IPC: F24C15/16

Abstract: A cooking device according to the present invention may comprise: a frame forming a cooking chamber; and a rack support mechanism detachably installed to the frame and supporting a rack such that height of the rack can be adjusted.

公开(公告)号：US20200236743A1

公开(公告)日：2020-07-23

申请号：US16633458

申请日：2018-07-11

Applicant: LG ELECTRONICS INC.

Inventor： Jaekyung YANG ,  Hoonseob SIM ,  Soochan LEE ,  Yongsoo LEE

IPC: H05B6/64 ,  F27D21/02 ,  G03B21/56 ,  G03B21/14

Abstract: An oven and a method for controlling an oven are provided. The oven includes a case; a cooking chamber formed inside of the case; and a door installed at one side of the case so as to open and close the cooking chamber. The door includes an outer plate forming an exterior thereof; an inner plate spaced a predetermined distance apart from the outer plate and in contact with the cooking chamber, and a door display disposed between the outer plate and the inner plate so as to display predetermined information on the outer plate.

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

IPC: G01V3/10 ,  H05B6/06

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.

公开(公告)号：US20200146498A1

公开(公告)日：2020-05-14

申请号：US16614320

申请日：2018-05-16

Applicant: LG Electronics Inc.

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

IPC: A47J27/04 ,  H05B6/12 ,  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.

公开(公告)号：US20190327979A1

公开(公告)日：2019-10-31

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

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.

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

IPC: H05B6/06 ,  H05B6/12 ,  H05B6/40

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.

公开(公告)号：US20190307281A1

公开(公告)日：2019-10-10

申请号：US16269170

申请日：2019-02-06

Applicant: LG Electronics Inc.

Inventor： Yoojin JUNG ,  Hoonseob SIM ,  Jaekyung YANG ,  Yongsoo LEE ,  Hakjoo LIM

IPC: A47J27/04 ,  A47J36/24 ,  A47J36/32

Abstract: A cooking appliance includes a main body that defines a cooking chamber, a steam generator comprising a steam heater that is configured to heat food in the cooking chamber by generating steam, a lower heater located vertically below a bottom wall of the cooking chamber and configured to heat food in the cooking chamber, and a controller configured to control the steam heater and the lower heater. The controller is configured to: based on selection of a steam cooking mode, operate the steam heater to generate steam; and turn on the lower heater in a state in which steam cooking is performed.

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

IPC: H05B6/10 ,  H05B6/36

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.