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公开(公告)号：US20210176832A1
公开(公告)日：2021-06-10
申请号：US17116537
申请日：2020-12-09
Applicant: LG Electronics Inc.
Inventor： Dooyong OH , Seungbok OK , Kyunghoon JUNG , Byeongwook PARK
Abstract: A cooking apparatus includes: a working coil, an inverter including a plurality of switching elements and configured to apply, by operating the plurality of switching elements, a resonant current of a predetermined frequency to the working coil, a phase detector configured to detect a phase difference between the resonant current and a voltage applied to an output terminal of the inverter, and a controller configured to calculate, based on the detected phase difference, a temperature of a target object that is placed above the working coil.
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公开(公告)号：US20210127459A1
公开(公告)日：2021-04-29
申请号：US16766595
申请日：2018-11-28
Applicant: LG Electronics Inc.
Inventor： Seungbok OK , Byeong Wook PARK , Jae-Woo LEE
Abstract: An induction heating device includes a working coil group including a first working coil and a second working coil that are electrically connected in parallel to each other, an inverter configured to perform a switching operation to supply resonance current to at least one of the first or second working coil; a first semiconductor switch electrically connected to the first working coil to turn on and turn off the first working coil; a second semiconductor switch electrically connected to the second working coil to turn on and turn off the second working coil; and a controller configured to control operation of the inverter and the first and second semiconductor switches, respectively. The controller turns off the inverter before turning off at least one of the first semiconductor switch or the second semiconductor switch.
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公开(公告)号：US20240215122A1
公开(公告)日：2024-06-27
申请号：US18525634
申请日：2023-11-30
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok OK , Seonho JEON , Chuhyoung CHO
CPC classification number: H05B6/062 , H05B6/1209 , H05B2213/07
Abstract: A cooking appliance can include a first temperature sensor; a second temperature sensor; an analog switch configured to select one of a sensing value of the first temperature sensor and a sensing value of the second temperature sensor as a selected sensing value; and a processor configured to receive the selected sensing value from the analog switch, and apply the selected sensing value to at least one temperature prediction function and generate a predicted temperature based on an output of the at least one temperature prediction function. Also, the cooking appliance can include an upper plate configured to support an object to be heated, and a working coil configured to generate magnetic fields for heating the object.
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公开(公告)号：US20240060653A1
公开(公告)日：2024-02-22
申请号：US18270337
申请日：2021-01-29
Applicant: LG ELECTRONICS INC.
Inventor： Seungbok OK , Dooyong OH , Hojae SEONG , Byeongwook PARK
CPC classification number: F24C15/102 , F24C7/087 , H05B6/1209 , H05B2213/07
Abstract: A cooktop can include a top plate glass configured to support placement of a cooking container; a memory configured to store a plurality of regression models indicating a relationship between a temperature of the top plate glass and a cooking temperature of the cooking container; a temperature sensor configured to sense the temperature of the top plate glass when operating in a heating mode and output a sensing value; and a processor. Also, the processor can be configured to select a regression model from among the plurality of regression models based on the sensing value of the temperature sensor, and calculate the cooking temperature of the cooking container based on the regression model.
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5.发明公开公开(公告)号：US20230284346A1
公开(公告)日：2023-09-07
申请号：US18196840
申请日：2023-05-12
Applicant: LG Electronics Inc.
Inventor： Dooyong OH , Byeong Wook PARK , Seungbok OK , Jae-Woo LEE
Abstract: An induction heating device includes a working coil and a resonance capacitor, an inverter that performs a switching operation to supply a resonance current to the working coil, a plurality of snubber capacitors electrically connected to the inverter, a direct current (DC) link capacitor electrically connected to the inverter, and a relay configured to electrically connect one of the plurality of snubber capacitors to the DC link capacitor or the resonance.
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Patent Agency Ranking
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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公开(公告)号：US20250031284A1
公开(公告)日：2025-01-23
申请号：US18713906
申请日：2022-03-29
Applicant: LG ELECTRONICS INC.
Inventor： Hojae SEONG , Dooyong OH , Seungbok OK , Byeongwook PARK
Abstract: The present disclosure is intended to provide an induction heating type cooktop that detects overheating of a cooking vessel regardless of the amount of water or the material of the vessel, comprising an upper plate part on which a cooking vessel is placed, a working coil configured to generate a magnetic field passing through the cooking vessel, an inverter configured to supply current to the working coil, and a controller configured to detect whether the cooking vessel is overheated, wherein the controller is configured to detect whether the cooking vessel is overheated using load impedance.
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公开(公告)号：US20210274607A1
公开(公告)日：2021-09-02
申请号：US17185663
申请日：2021-02-25
Applicant: LG Electronics Inc.
Inventor： Hojae SEONG , Hyunwook MOON , Seungbok OK
Abstract: A wireless power transmission apparatus for induction heating includes: a working coil 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 configured to output, to the working coil, current at an operation frequency, and a controller. The controller is configured to receive, in the wireless power transmission mode, a load voltage from a target object, compensate for the load voltage, and determine, in the wireless power transmission mode, whether a foreign object is present in the working coil based on the compensated load voltage.
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10.发明申请公开(公告)号：US20210204367A1
公开(公告)日：2021-07-01
申请号：US16757718
申请日：2018-11-28
Applicant: LG Electronics Inc.
Inventor： Jae-Woo LEE , Byeong Wook PARK , Dooyong OH , Seungbok OK
Abstract: An induction heating apparatus includes a working coil; an inverter configured to perform switching operation to thereby apply a resonance current to the working coil; and a controller configured to provide a control signal with a fixed frequency to the inverter to thereby control the switching operation. The controller changes a pulse width of the control signal based on a predetermined cycle that is set based on a temperature of the inverter.
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