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公开(公告)号：EP3570637B1
公开(公告)日：2020-08-19
申请号：EP19178496.6
申请日：2018-01-03
发明人： KWACK, Younghwan , YANG, Jaekyung , SON, Seongho , LEE, Yongsoo , JUNG, Jeehoon , PARK, Hwapyeong , KIM, Mina
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公开(公告)号：EP3570637A1
公开(公告)日：2019-11-20
申请号：EP19178496.6
申请日：2018-01-03
发明人： KWACK, Younghwan , YANG, Jaekyung , SON, Seongho , LEE, Yongsoo , JUNG, Jeehoon , PARK, Hwapyeong , KIM, Mina
摘要： Provided is an induction heat cooking apparatus. The induction heat cooking apparatus includes a rectifier configured to convert an AC voltage supplied from an external power source into a DC voltage, an inverter configured to receive the voltage from the rectifier to supply current to heating coils, the heating coils configured to generate magnetic fields when the current flows through the inverter, a resonance capacitor including both DC terminals through which the voltage is outputted from rectifier and a plurality of capacitors connected in series to each other between the heating coils, a wireless power transfer (WPT) capacitor connected in parallel to the resonance capacitor, and a mode conversion switch configured to determine whether to connect the resonance capacitor to the WPT capacitor in parallel.
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公开(公告)号：EP3346799B1
公开(公告)日：2019-07-31
申请号：EP18150131.3
申请日：2018-01-03
发明人： KWACK, Younghwan , YANG, Jaekyung , SON, Seongho , LEE, Yongsoo , JUNG, Jeehoon , PARK, Hwapyeong , KIM, Mina
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公开(公告)号：EP3346799A1
公开(公告)日：2018-07-11
申请号：EP18150131.3
申请日：2018-01-03
发明人： KWACK, Younghwan , YANG, Jaekyung , SON, Seongho , LEE, Yongsoo , JUNG, Jeehoon , PARK, Hwapyeong , KIM, Mina
CPC分类号： H05B6/065 , F24C15/106 , H02M3/06 , H02M7/103 , H05B1/0202 , H05B6/062 , H05B6/1236 , Y02B40/123
摘要： Provided is an induction heat cooking apparatus. The induction heat cooking apparatus includes a rectifier configured to convert an AC voltage supplied from an external power source into a DC voltage, an inverter configured to receive the voltage from the rectifier to supply current to heating coils, the heating coils configured to generate magnetic fields when the current flows through the inverter, a resonance capacitor including both DC terminals through which the voltage is outputted from rectifier and a plurality of capacitors connected in series to each other between the heating coils, a wireless power transfer (WPT) capacitor connected in parallel to the resonance capacitor, and a mode conversion switch configured to determine whether to connect the resonance capacitor to the WPT capacitor in parallel.
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公开(公告)号：EP4333562A1
公开(公告)日：2024-03-06
申请号：EP21939444.2
申请日：2021-07-13
申请人： LG Electronics Inc.
发明人： KWACK, Younghwan , SON, Seongho , LEE, Yongsoo , YANG, Jaekyung
摘要： An induction heating type cooktop according to an embodiment of the present disclosure comprises: an upper part on which an object to be heated is placed; an intermediate heating element installed on the upper plate; a first working coil and a second working coil for generating a magnetic field passing through at least the object to be heated or the intermediate heating element; and an inverter unit for controlling a first direction of a first current flowing through the first working coil and a second direction of a second current flowing through the second working coil, wherein according to the type of the object to be heated, the area of a loop formed by the current induced by the intermediate heating element may be changed.
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公开(公告)号：EP4164334A1
公开(公告)日：2023-04-12
申请号：EP22193896.2
申请日：2021-01-27
申请人： LG Electronics, Inc.
发明人： KWACK, Younghwan , SON, Seongho , JEON, Seonho , CHO, Chuhyoung , JI, Jongseong
IPC分类号： H05B6/12
摘要： An induction heating type cooktop includes a case, an upper plate coupled to a top of the case and configured to support a target heating object, a working coil disposed inside the case and configured to heat the target heating object, a thin film disposed at a top surface of the upper plate or a bottom surface of the upper plate, and an insulator disposed between the bottom surface of the upper plate and the working coil. The thin film includes a plurality of sub-thin films that are arranged about a central portion of the working coil. Each of the plurality of sub-thin films defines a closed loop surrounding the central portion of the working coil. The thin firm further includes a heat conduction member that is arranged in a predetermined pattern and contacts at least one of the plurality of sub-thin films.
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公开(公告)号：EP4138296A1
公开(公告)日：2023-02-22
申请号：EP21789003.7
申请日：2021-04-08
申请人： LG Electronics, Inc.
发明人： KWACK, Younghwan , SON, Seongho , JEON, Seonho , CHO, Chuhyoung , JI, Jongseong
摘要： A protection circuit of a resonant converter according to an embodiment of the present disclosure may include a comparator configured to compare a DC link voltage of the resonant converter with a voltage across both ends of one of first and second switches, and a microcomputer configured to detect whether zero voltage switching is performed, based on output signals of the comparator.
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公开(公告)号：EP4132222A1
公开(公告)日：2023-02-08
申请号：EP21776779.7
申请日：2021-03-19
发明人： KWACK, Younghwan , SON, Seongho , JEON, Seonho , CHO, Chuhyoung , JI, Jongseong , SON, Keeyoung , SIM, Boogyo
摘要： The present disclosure relates to an induction heating type cooktop and includes a case; a cover plate configured to be coupled to the upper end of the case and provided with an upper plate portion on which an object to be heated is disposed; a working coil provided inside the case; a thin film configured to be coated on the upper plate portion and to be inductively heated by the working coil; and an adiabatic material provided between the upper plate portion and the working coil, in which the thin film may be formed to have at least one closed loop that does not include a central region of the working coil.
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公开(公告)号：EP3890436A1
公开(公告)日：2021-10-06
申请号：EP21151620.8
申请日：2021-01-14
申请人： LG Electronics, Inc.
发明人： KWACK, Younghwan , SON, Seongho , JEON, Seonho , CHO, Chuhyoung , JI, Jongseong
IPC分类号： H05B6/06
摘要： A method is provided for operating a resonant power conversion apparatus. The method may include charging a capacitor connected to a power source in parallel, and determining a discharge time point and a discharge period of a discharge circuit, where the discharge circuit includes a resistor and a switch connected in series and is connected to the capacitor in parallel. The method may also include outputting, by a switch control circuit, a switch control signal by determining the switch control signal based on the discharge time point and the discharge period, and discharging the charged capacitor through the resistor based on the switch control signal applied to the switch. A resonant power conversion apparatus for performing the above-described method is provided.
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公开(公告)号：EP3557944B1
公开(公告)日：2020-07-15
申请号：EP18203030.4
申请日：2018-10-29
申请人： LG Electronics Inc.
发明人： KWACK, Younghwan , SON, Seongho , YANG, Jaekyung , LEE, Yongsoo
IPC分类号： H05B6/06
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