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公开(公告)号：US20210298136A1
公开(公告)日：2021-09-23
申请号：US17186923
申请日：2021-02-26
Applicant: LG Electronics Inc.
Inventor： Hyunwook MOON , Euisung KIM , Yangkyeong KIM
Abstract: A wireless power transmission apparatus for induction heating includes: a working coil that is configured to change operation based on selection of a mode of operation from among a plurality of operating modes, the plurality of operating modes including a wireless power transmission mode configured to wirelessly transmit power and a heating mode configured to heat one or more objects, an inverter that is configured to output, to the working coil, current at an operation frequency, and a controller. The controller is configured to detect a target object, and determine, in the wireless power transmission mode, whether the target object is (i) a device from among a first group of devices including a device with a reception coil or (ii) an induction heating device.
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公开(公告)号：US20210259058A1
公开(公告)日：2021-08-19
申请号：US17178764
申请日：2021-02-18
Applicant: LG Electronics Inc.
Inventor： Jaewoo LEE , Hyunwook MOON , Hojae Seong
Abstract: A cooking apparatus includes: a receiving coil configured to receive power wirelessly, a first rectifier configured to rectify power transmitted from the receiving coil, a first DC capacitor connected to an output terminal of the first rectifier, a working coil, an inverter, a second DC capacitor connected to an input terminal of the inverter, and a filter circuit connected between the first DC capacitor and the second DC capacitor and configured to block a noise current that flows between the first DC capacitor and the second DC capacitor and that is associated with a predetermined frequency or a frequency higher than the predetermined frequency. The inverter is configured to convert power from the second DC capacitor into an alternating current and transmit the converted alternating current to the working coil.
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3.发明申请公开(公告)号：US20200267806A1
公开(公告)日：2020-08-20
申请号：US16796613
申请日：2020-02-20
Applicant: LG Electronics Inc.
Inventor： Hyeunsik NAM , Wan Soo KIM , Hyunwook MOON , Byungkyu PARK , Yangkyeong KIM
Abstract: A wireless induction heating cooker includes a main body, a lid coupled to the main body, an internal pot stored in the main body, a first power receiving coil placed at a lower portion of an edge area of the internal pot, a lateral surface heating coil placed on an outer circumferential surface of the internal pot and connected with the first power receiving coil, a power transmitting coil provided on one lateral surface of an upper portion of the main body and supplied with electric currents induced to the first power receiving coil, and a second power receiving coil provided on one lateral surface of the lid and supplying electric currents induced by a magnetic field generated in the power transmitting coil to at least one of electronic devices.
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公开(公告)号：US20160381738A1
公开(公告)日：2016-12-29
申请号：US15189375
申请日：2016-06-22
Applicant: LG ELECTRONICS INC.
Inventor： Hyunwook MOON , Byungkyu PARK , Seungbok OK
CPC classification number: H05B6/1263 , H05B6/065 , H05B2206/022
Abstract: An electronic induction heat cooking apparatus is provided. The 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 cooling fan for cooling the plurality of switching elements, a plurality of heating coils for heating a cooking utensil by controlling the plurality of switching elements, and a controller for controlling the plurality of switching elements according to a plurality of operation modes. In an operation mode for generating maximum heat among the plurality of operation modes, a switching element for generating maximum heat among the plurality of switching elements is arranged closer to the cooling fan than at least one of the other switching elements.
Abstract translation: 提供一种电子感应加热烹调设备。 电子感应加热烹调装置包括整流器，用于整流输入电压并输出直流（DC）电压;多个开关元件，用于切换通过整流器输出的直流电压;冷却风扇，用于冷却多个开关元件; 多个加热线圈，用于通过控制多个开关元件来加热烹饪器具;以及控制器，用于根据多种操作模式来控制多个开关元件。 在多种操作模式中产生最大热量的操作模式中，在多个开关元件之间产生最大热量的开关元件比其它开关元件中的至少一个更靠近冷却风扇布置。
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公开(公告)号：US20160374155A1
公开(公告)日：2016-12-22
申请号：US15189342
申请日：2016-06-22
Applicant: LG ELECTRONICS INC.
Inventor： Byungkyu PARK , Hyunwook MOON , Seungbok OK , Byeongwook PARK
CPC classification number: H05B6/1263 , H05B6/065 , H05B2206/022
Abstract: An electronic induction heat cooking apparatus includes a rectifier including a bridge diode, 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 controller for controlling the plurality of switching elements; a plurality of heating coils for heating a cooking utensil by controlling the plurality of switching elements; a heat sink having the plurality of switching elements mounted thereon, for cooling the plurality of switching elements; a cover covering the plurality of switching elements; and coupling members for coupling the heat sink to the cover. A radiation fin for cooling the plurality of switching elements is formed on the cover.
Abstract translation: 一种电子感应加热烹饪设备，包括：整流器，包括桥二极管，用于整流输入电压并输出直流（DC）电压; 多个开关元件，用于切换通过整流器输出的直流电压; 用于控制所述多个开关元件的控制器; 多个加热线圈，用于通过控制多个开关元件来加热炊具; 散热器，其具有安装在其上的多个开关元件，用于冷却所述多个开关元件; 覆盖所述多个开关元件的盖; 以及用于将散热器耦合到盖的联接构件。 用于冷却多个开关元件的散热片形成在盖上。
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Patent Agency Ranking
公开(公告)号：US20240098854A1
公开(公告)日：2024-03-21
申请号：US18276506
申请日：2021-04-09
Applicant: LG ELECTRONICS INC.
Inventor： Hyunwook MOON , Kyunghoon JUNG , Jaewoo LEE , Yangkyeong KIM
IPC: H05B6/12
CPC classification number: H05B6/1245
Abstract: An induction heating type cooktop can include first and second working coils configured to generate a magnetic field for heating a cooking container; an inverter configured to supply current to one or more of the first working coil and the second working coil; and first and second resonance capacitors configured to resonate with the first and second working coils. Also, the induction heating type cooktop can further include a switching part configured to selectively direct current through one of the first and second working coils or through both of the first and second working coils based on a type of the cooking container.
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公开(公告)号：US20240098852A1
公开(公告)日：2024-03-21
申请号：US18277194
申请日：2021-04-09
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghoon JUNG , Euisung KlM , Hyunwook MOON
CPC classification number: H05B6/062 , H05B6/1236 , H05B2206/02
Abstract: An induction heating cooktop includes a working coil; an inverter including a plurality of switching elements, the inverter being configured to supply current to the working coil; and a controller configured to adjust a dead time of the inverter by changing a duty cycle of each of the plurality of switching in the inverter.
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8.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：US20210159730A1
公开(公告)日：2021-05-27
申请号：US17044302
申请日：2019-04-09
Applicant: LG ELECTRONICS INC.
Inventor： Hyunwook MOON , Yangkyeong KIM , Euisung KIM , Hojae SUNG
Abstract: The present disclosure relates to a wireless power reception device and method, and provides a wireless power reception device comprising: a secondary coil which is magnetically coupled to a primary coil disposed in a wireless power transmission device so as to receive wireless power from the wireless power transmission device; a shielding member for supporting the secondary coil; a power pickup unit including a rectifier circuit for rectifying an alternating current signal according to the wireless power received by the secondary coil into a direct current signal; and a communication/control unit for controlling transmission of the wireless power and communicating with the wireless power transmission device. On the basis of a secondary coil and a shielding member according to the present embodiment, slimming of an applied product can be achieved and, simultaneously, the same target performance index (which is required for the standard medium power level (for example, 60 W)) can be implemented.
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