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公开(公告)号：US20160100460A1
公开(公告)日：2016-04-07
申请号：US14873735
申请日：2015-10-02
Applicant: LG ELECTRONICS INC.
Inventor： Byeongwook PARK , Dooyong OH , Hyunwook MOON , Seungbok OK
CPC classification number: H05B6/065 , H05B6/1272
Abstract: An induction heat cooking apparatus includes a rectifier to rectify an input voltage and to output a DC voltage; a plurality of switching devices to switch the DC voltage output from the rectifier; a plurality of heating coils to heat a cooking container according to control of the plurality of switching devices; and a controller to control the plurality switching devices to simultaneously drive two heating coils connected in parallel with each other among the plurality of heating coils.
Abstract translation: 一种感应加热烹饪设备，包括整流器，用于对输入电压进行整流并输出直流电压; 多个切换装置，用于切换从整流器输出的直流电压; 多个加热线圈，用于根据所述多个开关装置的控制来加热烹饪容器; 以及控制器，用于控制所述多个开关装置，以同时驱动所述多个加热线圈中彼此并联连接的两个加热线圈。
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公开(公告)号：US20240114601A1
公开(公告)日：2024-04-04
申请号：US18270354
申请日：2021-02-03
Applicant: LG ELECTRONICS INC.
Inventor： Hojae SEONG , Dooyong OH , Oksun YU , Seungbok OK , Byeongwook PARK
CPC classification number: H05B6/062 , H05B6/1236 , H05B2213/04 , H05B2213/05 , H05B2213/07
Abstract: An induction cooktop includes an upper plate glass on which a cooking container is placed, a working coil generating a magnetic field to heat the cooking container, an inverter driven to flow a current through the working coil, an impedance calculation unit calculating the impedance of the cooking container on the basis of a parameter of the inverter, and an overheated state determination unit determining whether the cooking container is overheated, based on the impedance.
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13.发明公开公开(公告)号：US20230253834A1
公开(公告)日：2023-08-10
申请号：US18127193
申请日：2023-03-28
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok OK , Dooyong OH , Hyunwook MOON , Byeong Wook PARK
CPC classification number: H02J50/40 , H02J50/80 , H02J50/90 , H02J50/12 , H02J7/02 , H05B1/0266 , H05B6/065 , H05B6/44
Abstract: An induction heating and wireless power transmitting apparatus includes: a first working coil portion including first and second working coils that are connected in parallel; a first inverter configured to apply a resonant current to the first working coil and the second working coil by performing a switching operation; a first semiconductor switch connected to the first working coil and configured to turn the first working coil on or off; a second semiconduction switch connected to the second working coil and configured to turn the second working coil on or off; and a controller configured to detect whether an object is positioned above the first working coil or the second working coil based on controlling the first and second semiconductor switched and the first inverter.
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公开(公告)号：US20230119105A1
公开(公告)日：2023-04-20
申请号：US17914637
申请日：2020-04-28
Applicant: LG ELECTRONICS INC.
Inventor： Hyeunsik NAM , Dooyong OH , Hyunwook MOON , Yangkyeong KIM
Abstract: The present disclosure relates to a rotary roaster capable of uniformly heating the entire surface of a grill by means of an induction heating method. According to one embodiment, a rotary roaster operating on an induction heating device comprises a supporter, a grill rotatably coupled to the supporter, a motor configured to rotate the grill and a receiving coil provided on a bottom surface of the supporter and configured to provide a power induced by a working coil of the induction heating device to the motor.
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公开(公告)号：US20210136880A1
公开(公告)日：2021-05-06
申请号：US16488731
申请日：2018-02-23
Applicant: LG ELECTRONICS INC.
Inventor： Dooyong OH , Byeong Wook PARK , Seungbok OK
Abstract: The present invention relates to an induction heating cooker and, more specifically, to an induction heating cooker comprising triple heating coils which have the same center and operate by different power sources. The induction heating cooker of the present invention comprises a control unit for controlling first to third coil driving circuits so as to operate the first to third heating coils at the same frequency.
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Patent Agency Ranking
公开(公告)号：US20160374151A1
公开(公告)日：2016-12-22
申请号：US15048371
申请日：2016-02-19
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok OK , Dooyong OH , Oksun YU , Hyunwook MOON
CPC classification number: H05B6/065 , H05B1/0202 , H05B1/0266 , H05B6/1236
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.
Abstract translation: 一种感应加热烹饪设备，包括整流器，用于对输入电压进行整流并输出直流电压; 多个开关元件，用于切换从整流器输出的直流电压; 多个加热线圈，用于根据多个开关元件的操作加热烹饪容器; 以及用于控制所述多个开关元件的控制部分，其中所述控制部分控制在所述多个加热线圈之间的被操作的加热线圈与未操作的加热线圈之间的开关元件打开的时间较早 比另一个开关元件的功率高，使得不对没有工作的加热线圈施加电力。
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公开(公告)号：US20160100461A1
公开(公告)日：2016-04-07
申请号：US14873737
申请日：2015-10-02
Applicant: LG ELECTRONICS INC.
Inventor： Byeongwook PARK , Dooyong OH , Hyunwook MOON , Seungbok OK , Byungkyu PARK
CPC classification number: H05B6/065 , H05B6/1272 , H05B2206/02
Abstract: An induction heat cooking apparatus in which a first terminal of a first resonant capacitor of which a second terminal is connected to a second heating coil is connected to one of a positive power supply terminal and a negative power supply terminal of a rectifier, and a first terminal of a second resonant capacitor of which a second terminal is connected to a third heating coil is connected to the other one of the positive power supply terminal and the negative power supply terminal of the rectifier not connected to the first resonant capacitor, and a controller controls a plurality of switching devices to simultaneously drive the second heating coil and the third heating coil which are connected in parallel.
Abstract translation: 一种感应加热烹饪设备，其中第一端子连接到第二加热线圈的第一谐振电容器的第一端子连接到整流器的正电源端子和负电源端子中的一个，并且第一 将第二端子连接到第三加热线圈的第二谐振电容器的端子连接到未连接到第一谐振电容器的整流器的正电源端子和负电源端子中的另一个，以及控制器 控制多个开关装置以同时驱动并联连接的第二加热线圈和第三加热线圈。
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公开(公告)号：US20240107634A1
公开(公告)日：2024-03-28
申请号：US18270332
申请日：2021-01-29
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok OK , Dooyong OH , Hojae SEONG , Byeongwook PARK
IPC: H05B6/06
CPC classification number: H05B6/062
Abstract: A cooktop includes a memory that stores material classification data; a measurement unit that acquires output values for each frequency in a search frequency range; and a material determination unit that compares the output values with the material classification data so as to obtain the material information of the cooking container.
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公开(公告)号：US20190182908A1
公开(公告)日：2019-06-13
申请号：US16308170
申请日：2017-05-31
Applicant: LG Electronics Inc.
Inventor： Dooyong OH , Byeong Wook PARK
Abstract: An induction heating device includes a first coil that is wound about an axis by a first number of rotations, a second coil that is spaced apart from the first coil in a radial direction and that is disposed radially outward of the first coil, the second coil being wound about the axis by a second number of rotations, and a power supply unit configured to convert alternating current (AC) power and to supply a high-frequency AC to the first coil and to the second coil based on conversion of the AC power. The induction heating device is configured to output a maximum output level in a range from 6500 W to 7500 W based on a ratio between the first number of rotations and the second number of rotations.
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20.发明申请公开(公告)号：US20190124726A1
公开(公告)日：2019-04-25
申请号：US16165015
申请日：2018-10-19
Applicant: LG Electronics Inc.
Inventor： Hyunwook MOON , Eui Sung KIM , Dooyong OH
Abstract: An induction heating device includes first and second working coils connected to each other electrically in parallel, an inverter unit configured to cause a resonant current to flow in at least one of the first working coil or the second working coil, a first semiconductor switch configured to turn on and off the first working coil; a second semiconductor switch configured to turn on and off the second working coil; and a control unit configured to apply the resonant current to the first working coil or the second working coil by controlling the inverter unit, the first semiconductor switch, and the second semiconductor switch, and, based on a number of pulses or a frequency of the resonant current, to detect whether a target object is located at a location corresponding to the first working coil or the second working coil.
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