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公开(公告)号:US20210127461A1
公开(公告)日:2021-04-29
申请号:US17142819
申请日:2021-01-06
Inventor: Younghwan KWACK , Jaekyung YANG , Seongho SON , Yongsoo LEE , Jeehoon JUNG , Hwapyeong PARK , Mina KIM
Abstract: An induction heat cooking apparatus that includes: a rectifier that is configured to convert alternating current (AC) voltage supplied from an external power source into direct current (DC) voltage; an inverter that is configured to generate current based on DC voltage received from the rectifier and provide the current to output nodes; heating coils that are configured to, based on the current generated by the inverter, generate magnetic fields for providing heat; a first capacitive unit that includes one or more resonance capacitors and that is coupled between the output nodes; a second capacitive unit that includes one or more wireless power transfer (WPT) capacitors and that is configured to be coupled between the output nodes; and a mode conversion switch that is configured to couple the second capacitive unit to the first capacitive unit in parallel is disclosed.
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公开(公告)号:US20200154532A1
公开(公告)日:2020-05-14
申请号:US16678775
申请日:2019-11-08
Applicant: LG Electronics Inc.
Inventor: Seongjun KIM , Jaekyung YANG , Yongsoo LEE
Abstract: An induction heating device includes: a working coil including a conducting wire that is wound in an annular shape and that is connected to a plurality of electric terminals; a ferrite core disposed vertically below the working coil and configured to direct upward an alternating magnetic field generated by the working coil, the ferrite core defining a stepped portion at each corner of the ferrite core; a base plate that supports the ferrite core on an upper surface of the base plate and that defines a connection hole having a shape corresponding to the corner of the ferrite core; and an indicator substrate disposed vertically below the base plate. The indicator substrate includes a connector that is disposed on an upper surface of the indicator substrate, that is coupled to one or more of the plurality of electric terminals, and that protrudes upward through the connection hole.
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公开(公告)号:US20190387913A1
公开(公告)日:2019-12-26
申请号:US16481044
申请日:2018-01-23
Applicant: LG ELECTRONICS INC.
Inventor: Soochan LEE , Jaekyung YANG , Haksoon YANG , Yongsoo LEE
Abstract: A steam generator and a cooking apparatus having a steam generator are provided. The steam generator may include a steam generation tube; an inflow tube configured to provide a passage so that water is introduced into the steam generation tube; at least one heater disposed on an outer surface of the steam generation tube to heat the water and generate steam; a discharge tube disposed above the steam generation tube to provide a passage so that the steam is discharged; and an adaptor unit configured to branch discharge water and the steam discharged from the discharge tube. The discharge tube may have an inner diameter that gradually increases in an upward direction.
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公开(公告)号:US20190357317A1
公开(公告)日:2019-11-21
申请号:US16216166
申请日:2018-12-11
Applicant: LG Electronics Inc.
Inventor: Younghwan KWACK , Seongho SON , Jaekyung YANG , Yongsoo LEE
Abstract: The present disclosure relates to an induction heating device having an improved control algorithm and an improved circuit structure. In one embodiment of the present disclosure, an induction heating device includes: a first board having, thereon: a first working coil; a first inverter for performing a switching operation to apply a resonant current to the first working coil; and a first control unit configured for controlling an operation of the first inverter; and a second board having, thereon: a second working coil; a second inverter for performing a switching operation to apply a resonant current to the second working coil; and a second control unit configured for controlling an operation of the second inverter, wherein the first control unit is configured for enabling the first and second working coils to operate concurrently at an in-phase or 180-degrees out-of-phase.
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公开(公告)号:US20180192479A1
公开(公告)日:2018-07-05
申请号:US15862537
申请日:2018-01-04
Inventor: Younghwan KWACK , Jaekyung YANG , Seongho SON , Yongsoo LEE , Jeehoon JUNG , Hwapyeong PARK , Mina KIM
CPC classification number: H05B6/065 , F24C15/106 , H02M3/06 , H02M7/103 , H05B1/0202 , H05B6/062 , H05B6/1236 , Y02B40/123
Abstract: An induction heat cooking apparatus that includes: a rectifier that is configured to convert alternating current (AC) voltage supplied from an external power source into direct current (DC) voltage; an inverter that is configured to generate current based on DC voltage received from the rectifier and provide the current to output nodes; heating coils that are configured to, based on the current generated by the inverter, generate magnetic fields for providing heat; a first capacitive unit that includes one or more resonance capacitors and that is coupled between the output nodes; a second capacitive unit that includes one or more wireless power transfer (WPT) capacitors and that is configured to be coupled between the output nodes; and a mode conversion switch that is configured to couple the second capacitive unit to the first capacitive unit in parallel is disclosed.
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公开(公告)号:US20240295326A1
公开(公告)日:2024-09-05
申请号:US18662139
申请日:2024-05-13
Applicant: LG Electronics Inc.
Inventor: Wontae KIM , Seongho SON , Jaekyung YANG , Yongsoo LEE , Hyunwoo JUN
CPC classification number: F24C7/087 , H05B3/748 , H05B6/105 , H05B6/1209 , H05B6/1263
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:US20240260147A1
公开(公告)日:2024-08-01
申请号:US18290425
申请日:2021-06-01
Applicant: LG Electronics Inc.
Inventor: Soochan LEE , Jaekyung YANG , Hak Soon YANG , Hakjoo LIM , Suyong LEE
IPC: H05B6/64
CPC classification number: H05B6/6461
Abstract: A cooking apparatus and a method for controlling a cooking apparatus, the cooking apparatus determining whether or not food is overcooked regardless of the type and weight of the food to be cooked, on the basis of a change in the amount of carbon monoxide generated during cooking, and to minimize the possibility of an overcook determination error.
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公开(公告)号:US20240260146A1
公开(公告)日:2024-08-01
申请号:US18290434
申请日:2021-05-31
Applicant: LG Electronics Inc.
Inventor: Sangcheol LEE , Kyoung-Joon PARK , Jaekyung YANG , Wontae KIM
CPC classification number: H05B6/6423 , F24C15/2042 , H05B6/6414
Abstract: A cooking appliance including a door, a display, a camera, and a blower module disposed inside the door to cool the electrical components and creating an air flow that functions as an air curtain and is separate from an air flow path suctioning contaminants, to prevent the contaminants from adhering to the display and the camera.
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公开(公告)号:US20240200787A1
公开(公告)日:2024-06-20
申请号:US18287569
申请日:2021-06-01
Applicant: LG Electronics Inc.
Inventor: Yong Hyun LEE , Kyoung-Joon PARK , Jaekyung YANG , Sangcheol LEE
CPC classification number: F24C15/006 , F24C7/085 , G03B17/55 , G03B30/00
Abstract: A cooking appliance in which a plurality of transparent plates, which block heat generated in the cavity to protect a camera, are disposed not to be in direct contact with a camera module, and individual transparent plates are spaced apart from each other to form air layers so that the direct conduction of heat from the cavity to the camera can be prevented.
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公开(公告)号:US20210259062A1
公开(公告)日:2021-08-19
申请号:US17179925
申请日:2021-02-19
Applicant: LG Electronics Inc.
Inventor: Juwon KIM , Eunjin JANG , Jongwon HWANG , Yongsoo LEE , Hyunwoo JUN , Jaekyung YANG
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.
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