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公开(公告)号：US11678411B2
公开(公告)日：2023-06-13
申请号：US16849558
申请日：2020-04-15
Applicant: LG Electronics Inc.
Inventor： Seongjun Kim , Wontae Kim , Seonghoon Hwang
CPC classification number: H05B6/1272 , C03C17/3655 , H05B3/74 , H05B6/062 , H05B6/1254
Abstract: An induction heating type cooktop includes a cover plate that is coupled to a top of a case and that includes an upper plate configured to seat an object to be heated, a working coil disposed inside the case and configured to heat the object, an insulator disposed between a bottom surface of the upper plate and the working coil, and a thin film that is disposed on at least one of a top surface of the upper plate or the bottom surface of the upper plate and that includes a plurality of sub-films that are arranged about a central portion of the thin film. An outer boundary of one of the plurality of sub-films is positioned radially outward of an outer boundary of another of the plurality of sub-films relative to the central portion of the thin film.
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公开(公告)号：US10856369B2
公开(公告)日：2020-12-01
申请号：US15941876
申请日：2018-03-30
Applicant: LG Electronics Inc.
Inventor： Seongjun Kim , Hoon Kim , Yongsoo Lee
Abstract: An induction heating device includes a case, a cover plate, a working coil, a base plate, a light guide that is located around the working coil and includes a light-emitting surface that indicates an output intensity of the working coil or an operation state of the working coil, and a light-emitting element that emits light toward the light guide. The light guide includes a light-guiding portion that has a lower surface having a parabolic shape and an upper surface including the light-emitting surface in which the upper surface extends in a first direction farther than the lower surface, and a light-guiding support that couples to the base plate, that surrounds at least a portion of the light-guiding portion, and that reflects, toward the light-guiding portion, at least one of light that has been emitted from the light-emitting element or light that has been guided through the light-guiding portion.
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公开(公告)号：US12144089B2
公开(公告)日：2024-11-12
申请号：US18197446
申请日：2023-05-15
Applicant: LG Electronics Inc.
Inventor： Seongjun Kim , Wontae Kim , Seonghoon Hwang
Abstract: An induction heating type cooktop includes a cover plate that is coupled to a top of a case and that includes an upper plate configured to seat an object to be heated, a working coil disposed inside the case and configured to heat the object, an insulator disposed between a bottom surface of the upper plate and the working coil, and a thin film that is disposed on at least one of a top surface of the upper plate or the bottom surface of the upper plate and that includes a plurality of sub-films that are arranged about a central portion of the thin film. An outer boundary of one of the plurality of sub-films is positioned radially outward of an outer boundary of another of the plurality of sub-films relative to the central portion of the thin film.
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公开(公告)号：US11653422B2
公开(公告)日：2023-05-16
申请号：US16712016
申请日：2019-12-12
Applicant: LG Electronics Inc.
Inventor： Jae-Woo Lee , Seongjun Kim , Seungbok Ok
IPC: H05B6/06 , H05B6/44 , G06F3/04883 , H05B1/02 , H05B6/12
CPC classification number: H05B6/062 , G06F3/04883 , H05B1/0258 , H05B6/1218 , H05B6/1272 , H05B6/44 , H05B2206/02
Abstract: An induction heating device includes a case, working coils, a cover plate, an input interface, a first control module configured to detect one or more of the working coils at a position of an object seated on the cover plate, a second control module configured to receive information on the position of the object and control the input interface to display an image of a heating zone, and light emitting elements disposed below a periphery of each of the plurality of working coils. The second control module is configured to analyze an arrangement form of the one or more of the working coils based on the information on the position of the object, and control driving of at least one of the light emitting elements based on a result of analyzing the arrangement form.
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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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Patent Agency Ranking
公开(公告)号：US12089320B2
公开(公告)日：2024-09-10
申请号：US16838229
申请日：2020-04-02
Applicant: LG Electronics Inc.
Inventor： Seongjun Kim , Yongsoo Lee
CPC classification number: H05B6/1209 , F24C15/006 , H02M1/44 , H05B6/04 , H05B6/062 , H05B6/1218 , H05B6/1245 , H05B6/1254 , H05B6/1263 , H05B6/1272 , H05B6/365 , H05B2206/022 , H05B2213/07
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.
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公开(公告)号：US11672055B2
公开(公告)日：2023-06-06
申请号：US16678775
申请日：2019-11-08
Applicant: LG Electronics Inc.
Inventor： Seongjun Kim , Jaekyung Yang , Yongsoo Lee
CPC classification number: H05B6/365 , H05B6/1245
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：US11612021B2
公开(公告)日：2023-03-21
申请号：US16678795
申请日：2019-11-08
Applicant: LG Electronics Inc.
Inventor： Seongjun Kim , Jaekyung Yang , Yongsoo Lee
Abstract: An induction heating device includes: a base plate; a working coil disposed vertically above the base plate, the working coil including a conducting wire that is annularly wound; a ferrite core that is disposed on an upper surface of the base plate, that is disposed vertically below the working coil, and that is configured to direct upward an alternating magnetic field generated by the working coil; and an insulating member attached to an outer portion of the ferrite core and configured to electrically insulate the working coil from the base plate.
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公开(公告)号：US11277887B2
公开(公告)日：2022-03-15
申请号：US16182783
申请日：2018-11-07
Applicant: LG Electronics Inc.
Inventor： Seongjun Kim , Jaekyung Yang
Abstract: An induction heating device includes: a casing; a cover plate coupled to a top of the casing and configured to seat an object on a top surface of the cover plate; a working coil located within the casing and configured to heat the object on the top surface of the cover plate; a base plate configured to support the working coil; an indicator board that is located vertically below the base plate and that is spaced apart from the base plate to define an air-flow path between the base plate and the indicator board, where the indicator board includes a plurality of light emitting elements; and a blowing fan located at a first side of a bottom surface of the casing and configured to suction air into the casing from an outside of the casing and to discharge air into the air-flow path.
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公开(公告)号：US12127321B2
公开(公告)日：2024-10-22
申请号：US18220644
申请日：2023-07-11
Applicant: LG Electronics Inc.
Inventor： Seongjun Kim , Wontae Kim , Seonghoon Hwang
CPC classification number: H05B6/1263 , H05B6/062
Abstract: An induction heating type cooktop includes a case, a cover plate that is connected to an upper end of the case and that has an upper surface configured to support an object to be heated, a working coil disposed inside the case, a thin layer disposed at the cover plate and configured to be heated by the working coil through induction, and a working coil cooling fan configured to blow air toward the working coil.
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