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公开(公告)号：US11083321B2
公开(公告)日：2021-08-10
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
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.
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公开(公告)号：US12060999B2
公开(公告)日：2024-08-13
申请号：US17152000
申请日：2021-01-19
Applicant: LG ELECTRONICS INC.
Inventor： Sangcheol Lee , Kyoungjoon Park , Yonghyun Lee , Jaekyung Yang
CPC classification number: F24C15/006 , H05K7/20145
Abstract: An oven range is provided that may include a main body that forms an exterior of the oven range; a cavity that forms a space for cooking an item within the main body; a door coupled to the main body to selectively open and close the cavity; a cooktop provided over the main body; and a controller located over the door and at a front end of the cooktop and having an electronic component installed therein, a cooling flow path being formed in the controller to cool the electronic component.
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公开(公告)号：US12016104B2
公开(公告)日：2024-06-18
申请号：US17141749
申请日：2021-01-05
Applicant: LG Electronics Inc.
Inventor： Seongho Son , Jaekyung Yang , Hyojin Choi , Yongsoo Lee
Abstract: An induction heat cooking apparatus includes a rectifier configured to convert an AC voltage supplied from a power source into a DC voltage, a battery configured to store power, a switch configured to connect to at least one of the rectifier or the battery, an inverter connected to the switch and configured to receive a first voltage from at least one of the rectifier or the battery and convert the first voltage to a second voltage, and a heating coil configured to receive the second voltage from the inverter and generate magnetic fields in which the heating coil is configured to heat a cooking device based on the generated magnetic fields.
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公开(公告)号：US11950347B2
公开(公告)日：2024-04-02
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
CPC classification number: H05B6/065 , F24C15/106 , H02M3/06 , H02M7/103 , H05B1/0202 , H05B6/062 , H05B6/1236 , Y02B40/00
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：US11585540B2
公开(公告)日：2023-02-21
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.
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Patent Agency Ranking
公开(公告)号：US11528782B2
公开(公告)日：2022-12-13
申请号：US16678781
申请日：2019-11-08
Applicant: LG Electronics Inc.
Inventor： Younghwan Kwack , Seongho Son , Jaekyung Yang , Yongsoo Lee
IPC: H05B6/06
Abstract: Described is a method for controlling an induction heating device having one or more working coils and a controller configured to perform pre-testing based on a single pulse. The method includes: selecting a working coil to be tested, performing a detection operation to detect a vessel disposed on the working coil and generate a first output pulse; comparing at least one of: a count of the first output pulse to a predetermined reference count range, or an on-duty time of the first output pulse to a predetermined reference time range; and adjusting, by the controller, a duration of an on-state of the single pulse based on (i) a result of the comparison of the count of the first output pulse to the predetermined reference count range or (ii) a result of the comparison of the on-duty time of the first output pulse to the predetermined reference time range.
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公开(公告)号：US11525582B2
公开(公告)日：2022-12-13
申请号：US16614256
申请日：2018-05-16
Applicant: LG Electronics Inc.
Inventor： Suyong Lee , Jaekyung Yang , Yongsoo Lee , Yonghyun Lee
Abstract: A cooking appliance according to an embodiment of the present invention comprises: a case having a cooking chamber formed therein; a door for opening/closing a front opening of the case; a steam generation device mounted on the exterior of the case; and a steam supply pipe for connecting the steam generation device and the cooking chamber, wherein the steam generation device can comprise: a housing fixed to the case; a drawer provided so as to be able to be withdrawn from and put into the housing, and into which water for generating steam is filled; and a heating unit mounted on the lower surface of the drawer so as to heat the water filled inside the drawer.
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公开(公告)号：US11337279B2
公开(公告)日：2022-05-17
申请号：US16390686
申请日：2019-04-22
Applicant: LG ELECTRONICS INC.
Inventor： Younghwan Kwack , Seongho Son , Jaekyung Yang , Yongsoo Lee
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.
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公开(公告)号：US11304270B2
公开(公告)日：2022-04-12
申请号：US16678803
申请日：2019-11-08
Applicant: LG Electronics Inc.
Inventor： Younghwan Kwack , Seongho Son , Jaekyung Yang , Yongsoo Lee
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.
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公开(公告)号：US11178731B2
公开(公告)日：2021-11-16
申请号：US16198168
申请日：2018-11-21
Applicant: LG Electronics Inc.
Inventor： Seongjun Kim , Seongho Son , Jaekyung Yang , Yongsoo Lee
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.
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