公开(公告)号：US11283307B2

公开(公告)日：2022-03-22

申请号：US16686041

申请日：2019-11-15

Applicant: LG Electronics Inc.

Inventor： Hyengcheul Choi ,  Eunsoo Lee ,  Jaesoon Kwon ,  Hwanyong Kim ,  Sooyong Park ,  Seong Hun Lee ,  Beom Seok Chae

IPC: H02J7/00 ,  H02J50/80 ,  H02J7/02

Abstract: Disclosed herein is a wireless power transmitting device that includes a charging module which is configured to transmit a foreign object sensing signal for sensing at least one of a wireless power receiving device and a foreign object on a charging pad, and which is configured to transmit a wireless power signal for charging the wireless power receiving device, and a control module which is configured to control the charging module such that the wireless power signal and the foreign object sensing signal are transmitted, and which is configured to sense at least one of the foreign object and the wireless power receiving device, based on an output voltage sensed by the charging module, after the foreign object sensing signal is transmitted.

公开(公告)号：US11924949B2

公开(公告)日：2024-03-05

申请号：US17257115

申请日：2019-06-11

Applicant: LG ELECTRONICS INC.

Inventor： Byungsang Jung ,  Gyunghwan Yuk ,  Seong Hun Lee

IPC: H05B6/06 ,  F24C7/08 ,  H05B1/02 ,  H05B6/12

CPC classification number: H05B6/062 ,  F24C7/083 ,  H05B1/0266 ,  H05B6/12

Abstract: The present disclosure relates to an induction heating device comprising: a heating coil provided in a main body; a knob switch, detachable from and attachable to a knob area formed on one surface of the main body, for adjusting a heating power of the heating coil by rotation when attached to the knob area; a resonance detecting unit for outputting a frequency pulse corresponding to an impedance inflection point that varies according to a degree of rotation of the knob switch; and a controller for controlling the heating power of the heating coil according to the frequency pulse.

公开(公告)号：US11056926B2

公开(公告)日：2021-07-06

申请号：US16742236

申请日：2020-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyengcheul Choi ,  Seong Hun Lee ,  Beom Seok Chae ,  Sooyong Park ,  Hwanyong Kim

IPC: H02J50/60 ,  H02J50/12 ,  H02J50/40 ,  H02J50/50 ,  H02J50/80 ,  H02J7/00

Abstract: An apparatus is provided in which electromagnetic field components generated by a transmitting coil is induced to other transmitting coils based on plurality of transmitting coils being driven for multiple wireless charging, for example, wirelessly charging two or more receivers to prevent degradation in performance of detecting a receiving coil and a foreign object during multiple wireless charging. According to the present disclosure, the receiving coil and foreign object detecting apparatus in multiple charging conditions using the plurality of transmitting coils includes an induced signal processor. The induced signal processor can control an amount of voltage and an operation frequency corresponding to the wireless charging coil and can detect a peak and can include a filter to thereby prevent interference of a signal induced from other neighboring transmitting coils.

公开(公告)号：US11469621B2

公开(公告)日：2022-10-11

申请号：US16707207

申请日：2019-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunsoo Lee ,  Jaesoon Kwon ,  Hwanyong Kim ,  Sooyong Park ,  Beom Seok Chae ,  Hyengcheul Choi ,  Seong Hun Lee

IPC: H02J7/00 ,  H02J50/40 ,  H01F38/14 ,  H02J7/02

Abstract: Provided are a wireless charging apparatus in which multiple coils overlaps with one another on separated cores, and a wireless charging system including such wireless charging apparatus. According to an embodiment of the present disclosure, the wireless charging apparatus includes a plurality of plate coils spaced apart from one another, a first coil disposed on the plurality plate coils, and a second coil disposed on the first coil to partially overlap with the first coil.

公开(公告)号：US11437860B2

公开(公告)日：2022-09-06

申请号：US16727040

申请日：2019-12-26

Applicant: LG ELECTRONICS INC.

Inventor： Jaesoon Kwon ,  Hwanyong Kim ,  Beom Seok Chae ,  Sooyong Park ,  Seong Hun Lee ,  Eunsoo Lee ,  Hyengcheul Choi

IPC: H02J50/00 ,  H02J50/40 ,  H02J50/90 ,  H01F27/32 ,  H01F38/14 ,  H02J7/02

Abstract: The present disclosure provides a wireless charging device in which multiple coils are overlapped with one another on separated cores. According to an embodiment of the present disclosure, the wireless charging device includes two flat cores spaced apart from each other, and a first layer coil to a fourth layer coil disposed above the two plate cores and disposed on different layers from one another and overlapped with one another, so that the multiple cores are overlapped with one another on the separated cores.

公开(公告)号：US11218028B2

公开(公告)日：2022-01-04

申请号：US16739749

申请日：2020-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Hyengcheul Choi ,  Bongsik Kwak ,  Seong Hun Lee

IPC: H02J50/40 ,  H02J50/12 ,  H01F38/14 ,  H02J50/80

Abstract: The present disclosure relates to a wireless power receiving apparatus capable of receiving multi-level power transmitted by a wireless power transmitting apparatus. According to an embodiment of the present disclosure, the wireless power receiving apparatus includes a first receiving coil in which induced current is generated by electromagnetic induction, a second receiving coil connected in series with the first receiving coil by a switch, and a processor that is driven based on the induced current generated by the first receiving coil and controls the switch based on power information included in the induction current to selectively connect the first receiving coil and the second receiving coil.

公开(公告)号：US11411425B2

公开(公告)日：2022-08-09

申请号：US16688661

申请日：2019-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Hwanyong Kim ,  Kyunghwan Kim ,  Hyoung Seok Kim ,  Gyunghwan Yuk ,  Seong Hun Lee

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/40 ,  H01F38/14

Abstract: The present disclosure relates to a wireless charging device capable of efficiently charging one or more user terminals by performing a tilt function with respect to a portion where the user terminal is held. According to an embodiment of the present disclosure, the wireless charging device include a first body, a depression defined in the first body, a terminal holder that is coupled to an inner surface at both sides of the depression using a hinge and rotates with respect to the first body, a wireless charger disposed in the terminal holder, a second body connected to the first body and inclined with respect to the first body, and a display provided in the second body.

公开(公告)号：US11381117B2

公开(公告)日：2022-07-05

申请号：US16797483

申请日：2020-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Hyengcheul Choi ,  Seong Hun Lee ,  Bongsik Kwak ,  Hyung Geol Kwak

IPC: H02J50/50 ,  H02J50/10 ,  H02J50/70 ,  H01F38/14 ,  H02J7/02

Abstract: Disclosed herein is a wireless charging apparatus for preventing cancelation of magnetic fields generated between a plurality of adjacent transmission coils by placing a repeater on the plurality of transmission coils, the wireless charging apparatus including a plurality of transmission coils spaced the same distance apart from a reference point, and a repeater placed on the plurality of transmission coils to be overlapped with each of the plurality of transmission coils with respect to the reference point that is a center, wherein a coupling coefficient between each of the plurality of transmission coils and the repeater is higher than a coupling coefficient between the plurality of transmission coils.