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1.发明授权公开(公告)号：US11419188B2
公开(公告)日：2022-08-16
申请号：US16643474
申请日：2018-08-13
Applicant: LG Electronics Inc.
Inventor： Seungbok Ok , Dooyong Oh , Hyunwook Moon , Byeong Wook Park
Abstract: An induction heating and wireless power transmitting apparatus includes a first group of working coils including a first working coil and a second working coil connected to each other in parallel, a first inverter that supplies resonant currents to at least one of the first working coil or the second working coil by performing a switching operation, a first semiconductor switch connected to the first working coil configured to turn on and turn off the first working coil, a second semiconductor switch connected to the second working coil and configured to turn on and turn off the second working coil, an auxiliary power supply configured to supply power to the first semiconductor switch and the second semiconductor switch, and a controller that controls the first inverter, the first semiconductor switch, and the second semiconductor switches.
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公开(公告)号：US10681780B2
公开(公告)日：2020-06-09
申请号：US15189536
申请日：2016-06-22
Applicant: LG ELECTRONICS INC.
Inventor： Dooyong Oh , Hyunwook Moon , Seungbok Ok , Byeongwook Park
Abstract: An electronic induction heat cooking apparatus includes a rectifier for rectifying an input voltage and outputting a direct current (DC) voltage; a plurality of switching elements for switching the DC voltage output through the rectifier; a plurality of heating coils for heating a cooking utensil by controlling the plurality of switching elements; a controller for controlling the plurality of switching elements according to a plurality of operation modes; and a supporting member in which at least one of the plurality of heating coils is mounted. The supporting member includes a coil insertion part, into which the heating coils are inserted, and the magnetic member is inserted into the supporting member to directly face the heating coils at the lower side of the heating coils.
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公开(公告)号：US11304267B2
公开(公告)日：2022-04-12
申请号：US16353655
申请日：2019-03-14
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok Ok , Dooyong Oh , Jae-Woo Lee
Abstract: An induction heating device includes first and second working coils connected electrically in parallel, an inverter unit configured to switch at least one of the first working coil or the second working coil, an inverter driving unit connected to the inverter unit; a first semiconductor switch connected to the first working coil, a first semiconductor switch driving unit connected to the first semiconductor switch, an over-current protection unit connected to the first semiconductor switch, configured to generate information based on a current that flows in the first semiconductor switch, and configured to, based on the information, determine whether to turn off the inverter driving unit, and a control unit that is configured to receive the information, and determine, based on the information, whether to block a pulse signal to the inverter driving unit and whether to turn off the first semiconductor switch driving unit.
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公开(公告)号：US10667332B2
公开(公告)日：2020-05-26
申请号：US15189395
申请日：2016-06-22
Applicant: LG ELECTRONICS INC.
Inventor： Dooyong Oh , Oksun Yu , Seungbok Ok , Byeongwook Park
Abstract: An electronic induction heat cooking apparatus includes first and second cooker modules including at least one heating coil and a dual heating coil, the first cooker module includes any one of an inner coil and an outer coil included in the dual heating coil, switching elements for operating the coil and a first microcontroller unit for controlling the switching elements, the second cooker module includes the other of the inner coil and the outer coil included in the dual heating coil, switching elements for operating the other coil and a second microcontroller unit for controlling the switching elements, and the first microcontroller unit and the second microcontroller unit share an oscillator.
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公开(公告)号：US11445578B2
公开(公告)日：2022-09-13
申请号：US16598642
申请日：2019-10-10
Applicant: LG Electronics Inc.
Inventor： Seungbok Ok , Wongyu Park , Byeong Wook Park
Abstract: An induction heating device includes a case, a working coil, a cover plate, a luminous element, a light guide disposed around the working coil, an input interface that is flush with an upper surface of the cover plate, a first controller configured to control driving of the working coil and the luminous element and to detect a position of one or more objects disposed on the upper surface and an arrangement sequence of the one or more objects placed on the upper surface, and a second controller configured to receive, from the first controller, information on the position and the arrangement sequence of the one or more objects, and control the input interface to display an image corresponding to a heating zone for the one or more objects based on the information on the position and the arrangement sequence of the one or more objects.
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Patent Agency Ranking
公开(公告)号：US10667333B2
公开(公告)日：2020-05-26
申请号：US15189566
申请日：2016-06-22
Applicant: LG ELECTRONICS INC.
Inventor： Dooyong Oh , Hyunwook Moon , Seungbok Ok , Byeongwook Park
Abstract: An electronic induction heat cooking apparatus includes a rectifier for rectifying an input voltage and outputting a direct current (DC) voltage, a plurality of switching elements for switching the DC voltage output through the rectifier, a plurality of heating coils for heating a cooking utensil by controlling the plurality of switching elements, a controller for controlling the plurality of switching elements, and a support member including grooves, into which the heating coils are inserted. A width of a cross section of each of the grooves decreases toward an entrance of each of the grooves.
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公开(公告)号：US10582574B2
公开(公告)日：2020-03-03
申请号：US15048371
申请日：2016-02-19
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok Ok , Dooyong Oh , Oksun Yu , Hyunwook Moon
Abstract: An induction heat cooking apparatus includes a rectifier to rectify an input voltage and to output a DC voltage; a plurality of switching elements to switch the DC voltage output from the rectifier; a plurality of heating coils to heat a cooking container according to an operation of the plurality of switching elements; and a control part to control the plurality of switching elements, wherein the control part controls a time at which a switching element between a heating coil which is operated and a heating coil which is not operated among the plurality of heating coils is opened to be earlier than that of another switching element, such that power is not applied to the heating coil which is not operated.
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公开(公告)号：US11979963B2
公开(公告)日：2024-05-07
申请号：US16487611
申请日：2018-02-23
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok Ok , Byeong Wook Park , Dooyong Oh
CPC classification number: H05B6/065 , H05B1/0266
Abstract: Disclosed herein is an induction-heating cooking apparatus that includes a sensing circuit for controlling an output of a heating coil, and more specifically, to an induction-heating cooking apparatus capable of enhancing accuracy in measuring electric currents of a heating coil by simply modifying a circuit. The induction-heating cooking apparatus includes a control unit calculating an output of a heating coil on the basis of electric currents measured by a sensor supplying alternating current power.
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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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10.发明授权公开(公告)号：US11064576B2
公开(公告)日：2021-07-13
申请号：US16165061
申请日：2018-10-19
Applicant: LG Electronics Inc.
Inventor： Hyunwook Moon , Eui Sung Kim , Seungbok Ok
IPC: H05B6/06 , H05B6/12 , H05B6/04 , H02M1/42 , H02J50/12 , H02J7/02 , H02J50/90 , H02J50/40 , H01F38/14
Abstract: Disclosed is a device configured to inductively heat one or more objects and to wirelessly transfer power to one or more objects. The device includes a first working coil, an inverter unit configured to cause a resonant current to flow in the first working coil by performing a switching operation, a first detection unit connected to the first working coil and configured to detect the resonant current applied to the first working coil, and a control unit configured to: determine whether a target object is located at a location corresponding to the first working coil by controlling operation of the inverter unit and the first detection unit; or to control output of the first working coil.
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