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公开(公告)号：US20230300956A1
公开(公告)日：2023-09-21
申请号：US18143464
申请日：2023-05-04
Applicant: LG ELECTRONICS INC.
Inventor： Hag Soo KIM , Eui Sung KIM , Sung Mun YOON
CPC classification number: H05B6/1245 , F24C7/08 , H05B6/062 , H05B2206/02 , H05B2213/03
Abstract: Disclosed herein is a cooking appliance. A working coil is provided at a lower portion of the cooking appliance. The working coil heats a tray disposed in a cooking compartment in an IH mode. A receiver coil wirelessly receiving external power is stacked below the working coil. An electromagnetic shielding plate is installed between the working coil and the receiver coil to partition a space in which the two coils are installed. The electromagnetic shielding plate shields an electromagnetic field or electromagnetic waves such that the electromagnetic field or electromagnetic waves in one of the two partitioned spaces does not leak to the other space located across the electromagnetic shielding plate.
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公开(公告)号：US20220039218A1
公开(公告)日：2022-02-03
申请号：US16769199
申请日：2019-01-09
Applicant: LG Electronics Inc.
Inventor： Eui Sung KIM , Yangkyeong KIM , Hyunwook MOON
Abstract: The present disclosure relates to a cooking apparatus having a heating module capable of moving in a two-dimensional space and, particularly, to a cooking apparatus comprising: an upper plate configured to support a cooking vessel, a heating module disposed movably in a space provided under the upper plate and included a coil, and a rail disposed under the heating module to guide movements of the heating module, wherein electric current is supplied to the rail and the heating module supplies an alternating current through the rail. According to the present disclosure, the heating module supplies a current through the rail rather than receiving a current through a separate connection coil or wiring from an external power supply, thereby enabling shorting or disconnection of a current to be prevented even if the heating module moves.
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公开(公告)号：US20200229276A1
公开(公告)日：2020-07-16
申请号：US16739495
申请日：2020-01-10
Applicant: LG ELECTRONICS INC.
Inventor： Hag Soo KIM , Eui Sung KIM , Sung Mun YOON
Abstract: Disclosed herein is a cooking appliance. A working coil is provided at a lower portion of the cooking appliance. The working coil heats a tray disposed in a cooking compartment in an IH mode. A receiver coil wirelessly receiving external power is stacked below the working coil. An electromagnetic shielding plate is installed between the working coil and the receiver coil to partition a space in which the two coils are installed. The electromagnetic shielding plate shields an electromagnetic field or electromagnetic waves such that the electromagnetic field or electromagnetic waves in one of the two partitioned spaces does not leak to the other space located across the electromagnetic shielding plate.
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4.发明申请公开(公告)号：US20190104569A1
公开(公告)日：2019-04-04
申请号：US16145298
申请日：2018-09-28
Applicant: LG Electronics Inc.
Inventor： Hyunwook MOON , Eui Sung KIM , Byeong Wook PARK
Abstract: An induction heating and wireless power transferring device that includes: a first working coil and a second working coil that are coupled in parallel; a rectification unit configured to rectify alternating current (AC) power to direct current (DC) power; a first inverter unit configured to convert the DC power into resonant current, and apply the converted resonant current to the first working coil or the second working coil; a first switch coupled to the first working coil and configured to turn on or off the first working coil; a second switch coupled to the second working coil and configured to turn on or off the second working coil; and a control unit configured to control the first inverter unit, the first switch, or the second switch to detect whether a target object is located on the first working coil or the second working coil.
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公开(公告)号：US20210195698A1
公开(公告)日：2021-06-24
申请号：US16768528
申请日：2019-01-09
Applicant: LG Electronics Inc.
Inventor： Hyunwook MOON , Eui Sung KIM , Dooyong OH
Abstract: A cooking apparatus includes an upper plate configured to support a cooking vessel, a heating module that is movably disposed in a space under the upper plate and that includes a coil, a substrate that is disposed between the upper plate and the heating module and that includes a plurality of coil patterns, an inverter configured to supply a resonance current to each of the plurality of coil patterns, and a controller configured to control the heating module, the substrate, and the inverter. The controller determines a position of the cooking vessel on the upper plate based on the number or a frequency of pulses of resonance current supplied to each of the plurality of coil patterns. The cooking apparatus recognizes the position of the cooking vessel disposed on the cooking apparatus and moves the heating module to the recognized position.
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Patent Agency Ranking
公开(公告)号：US20190104570A1
公开(公告)日：2019-04-04
申请号：US16145403
申请日：2018-09-28
Applicant: LG Electronics Inc.
Inventor： Hyunwook MOON , Eui Sung KIM , Byungkyu PARK , Jae-Woo LEE
Abstract: Disclosed is a support structure for an induction heating device that includes a working coil configured to heat an object. The support structure includes: a housing including an upper surface that is recessed do inward and that is configured to seat the object; a repeating coil that is located inside of the housing, that is configured to generate magnetic induction or magnetic resonance with the working coil, and that is configured to heat the object on the upper surface of the housing based on magnetic induction or magnetic resonance with the working coil; and a compensation capacitor located inside of the housing and connected to the repeating coil, where the compensation capacitor is configured to control output of the repeating coil.
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公开(公告)号：US20220087473A1
公开(公告)日：2022-03-24
申请号：US17422148
申请日：2020-01-10
Applicant: LG ELECTRONICS INC.
Inventor： Hag Soo KIM , Eui Sung KIM , Sung Mun YOON
Abstract: Disclosed herein is a cooking appliance. A working coil provided at a lower portion of the cooking appliance. The working coil heats a tray disposed in a cooking compartment in an IH mode. A temperature measurement module, which measures a temperature of the tray in a contact mode, is provided in the center of the working coil. The temperature measurement module includes a module body that is elastically biased upward by a spring. The module body is inserted into the spring and supports upper and lower ends of the spring. When the module body is installed on the working coil, the lower end of the spring is supported by an installation base of the working coil. The module body and the installation base are fastened in a key-to-key groove structure.
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8.发明申请公开(公告)号：US20190124727A1
公开(公告)日：2019-04-25
申请号：US16165061
申请日：2018-10-19
Applicant: LG Electronics Inc.
Inventor： Hyunwook MOON , Eui Sung KIM , Seungbok OK
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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9.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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公开(公告)号：US20190104573A1
公开(公告)日：2019-04-04
申请号：US16145278
申请日：2018-09-28
Applicant: LG Electronics Inc.
Inventor： Hyunwook MOON , Yangkyeong KIM , Eui Sung KIM
Abstract: An indicator for an induction heating device including a working coil, the indicator that includes: a magnetic flux sensing coil that is configured to (i) sense magnetic flux generated in a state in which the working coil is driven and (ii) convert the sensed magnetic flux into current; a rectifying portion that is configured to rectify current converted by the magnetic flux sensing coil; and a light emitting module that is configured to emit light based on current rectified by the rectifying portion is disclosed.
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