公开(公告)号：US11355281B2

公开(公告)日：2022-06-07

申请号：US17256624

申请日：2018-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan Kim ,  Jihyun Lee ,  Bongsik Kwak ,  Yongcheol Park

IPC: H01F38/14 ,  H02J50/80 ,  H02J50/40 ,  H01F27/30 ,  H01F27/36 ,  H02J50/70

Abstract: The present disclosure relates to a wireless power receiver and a method therefor, the wireless power receiver comprising: a secondary coil which is magnetically coupled to a primary coil provided in a wireless power transmitter so as to receive wireless power from the wireless power transmitter; a shielding member for supporting the secondary coil; a power pickup unit including a rectifier circuit which rectifies an alternating current signal of 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 transmitter. On the basis of the secondary coil and shielding member according to the present embodiment, slimming of an applied product may be achieved and, simultaneously, the same target performance index (required for a medium power level (for example, 60 W) standard) may be realized.

公开(公告)号：US11258313B2

公开(公告)日：2022-02-22

申请号：US16793946

申请日：2020-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Joonho Park ,  Seonghun Lee ,  Bongsik Kwak

IPC: H02J50/90 ,  H02J50/80 ,  H02J50/10 ,  H02J50/40 ,  H01F27/28 ,  H01F38/14 ,  H02J7/00

Abstract: Disclosed are a wireless power transfer apparatus and a method of controlling the same. The wireless power transfer apparatus in one example can include a power transmission circuit including a plurality of coils and configured to transfer power through the plurality of coils, and a controller, wherein the controller is configured to calculate a data value of a coil with respect to each of the plurality of coils, and determine a position of an object in a charge region corresponding to the plurality of coils in a charge region based on a comparison result obtained by comparing the data value calculated for each of the plurality of coils.

公开(公告)号：US11211833B2

公开(公告)日：2021-12-28

申请号：US16741908

申请日：2020-01-14

Applicant: LG Electronics Inc.

Inventor： Joonho Park ,  Seonghun Lee ,  Bongsik Kwak ,  Jihyun Lee ,  Sungkyu Kim

IPC: H02J50/60 ,  H02J50/12 ,  H02J50/40 ,  H01F38/14 ,  H02J7/00

Abstract: The present invention relates to a wireless power transfer apparatus. The wireless power transfer apparatus includes: a resonant circuit unit including a plurality of coils and a plurality of capacitor elements respectively connected to the plurality of coils; and a controller configured to calculate individual quality factor of each of the plurality of coils and a total quality factor of the plurality of coils, at a resonant frequency, and calculate whether foreign matter exists on a charging surface, based on the total quality factor and the individual quality factor, at the resonance frequency. Accordingly, foreign matter on the charging surface can be detected more easily.

公开(公告)号：US11049648B2

公开(公告)日：2021-06-29

申请号：US16339988

申请日：2017-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Taewook Kwon ,  Bongsik Kwak ,  Jeongkyo Seo ,  Beomseok Chae ,  Jaesoon Kwon ,  Sungkyu Kim

IPC: H01F38/14 ,  H02J50/12 ,  H02J50/80 ,  H01F27/28 ,  H02J50/40

Abstract: According to an embodiment of the present invention, a resonator transmitting power in a resonant mode includes: a first coil having a wire group including three wires arranged in line and alternately extended in first direction and second direction orthogonal to the first direction; and a second coil including three sub-coils and ferrite plates, and the first coil may be stacked adjacent to the second coil, and the first coil may correspond to a resonance coil driven in the resonance mode and the second coil may correspond to an induction coil driven in an induction mode, respectively.

公开(公告)号：US10659718B2

公开(公告)日：2020-05-19

申请号：US16036245

申请日：2018-07-16

Applicant: LG ELECTRONICS INC.

Inventor： Taewook Kwon ,  Bongsik Kwak ,  Sungkyu Kim ,  Jeongkyo Seo ,  Beomseok Chae

IPC: G06F3/038 ,  G09G5/00 ,  H04N5/63 ,  H02J50/05 ,  H02M3/335 ,  H04N5/655 ,  H02M1/00 ,  H02M1/08

Abstract: An image display apparatus are disclosed. The image display apparatus includes a display including a first electrode and a second electrode, for wireless power reception, a signal processor disposed apart from the display, and including a third electrode and a fourth electrode, for wireless power transmission, and a first bridge electrode and a second bridge electrode, including one ends apart from the first electrode and the second electrode, facing the first electrode and the second electrode, and the other ends apart from the first bridge electrode and the second bridge electrode, facing the first bridge electrode and the second bridge electrode.

公开(公告)号：US09660486B2

公开(公告)日：2017-05-23

申请号：US14400265

申请日：2013-05-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung Lee ,  Seonghun Lee ,  Yongcheol Park ,  Bongsik Kwak ,  Jeongkyo Seo ,  Hyunbeom Lee

IPC: H02J7/00 ,  H02J17/00 ,  H02J5/00 ,  H02J7/02 ,  H02J50/12 ,  H01F38/14

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0004 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

Abstract: The present specification provides a wireless power transfer device formed to transmit power to a wireless power reception device, and a power transfer unit in the wireless power transfer device comprises: a first coil formed to generate a magnetic field so as to transmit power in an induction scheme; and a second coil wound around the first coil and formed to generate a magnetic field vibrating at a resonance frequency so as to transmit power in a resonance scheme.

公开(公告)号：US20150137746A1

公开(公告)日：2015-05-21

申请号：US14400265

申请日：2013-05-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung Lee ,  Seonghun Lee ,  Yongcheol Park ,  Bongsik Kwak ,  Jeongkyo Seo ,  Hyunbeom Lee

IPC: H02J17/00 ,  H02J7/02 ,  H02J5/00

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0004 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

Abstract: The present specification provides a wireless power transfer device formed to transmit power to a wireless power reception device, and a power transfer unit in the wireless power transfer device comprises: a first coil formed to generate a magnetic field so as to transmit power in an induction scheme; and a second coil wound around the first coil and formed to generate a magnetic field vibrating at a resonance frequency so as to transmit power in a resonance scheme.

Abstract translation: 本说明书提供了一种形成为向无线电力接收装置发送功率的无线电力传送装置，无线电力传送装置中的电力传送装置包括：第一线圈，其被形成为产生磁场，以便在感应中发射功率 方案; 以及缠绕在第一线圈上并形成为产生以共振频率振动以便以谐振方案发送功率的磁场的第二线圈。

公开(公告)号：US11996705B2

公开(公告)日：2024-05-28

申请号：US17664400

申请日：2022-05-20

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan Kim ,  Jihyun Lee ,  Bongsik Kwak ,  Yongcheol Park

IPC: H02J50/12 ,  H01F5/00 ,  H01F38/14 ,  H02J50/40

CPC classification number: H02J50/12 ,  H01F5/00 ,  H01F38/14 ,  H02J50/40

Abstract: A wireless power transmitter according to one embodiment of the present disclosure comprises a primary coil forming magnetic coupling with a secondary coil provided in a wireless power receiver and transmitting wireless power to the wireless power receiver, wherein the primary coil is formed by spirally winding a plurality of subcoils connected electrically in parallel while keeping the subcoils in contact with each other, and the subcoil is litz wire consisting of several conducting wires packed in a bundle.

公开(公告)号：US11817717B2

公开(公告)日：2023-11-14

申请号：US17593261

申请日：2020-03-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyengcheul Choi ,  Bongsik Kwak ,  Hyunggeol Kwak ,  Sungkyu Kim ,  Jonggu Kim ,  Jinhong Kim ,  Sooyong Park ,  Yongcheol Park ,  Joonho Park ,  Seonghun Lee

IPC: H02J50/12 ,  H02J50/80 ,  H04B5/00 ,  H02J50/40 ,  H02J50/10

CPC classification number: H02J50/12 ,  H02J50/10 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0081

Abstract: The present specification relates to a wireless power receiving device, receiving method, and receiving system, the device comprising individual rectifiers for each receiving coil, wherein the individual rectifiers comprise isolators for isolating a receiving coil for PC0 from a receiving coil for PC1.

公开(公告)号：US11770029B2

公开(公告)日：2023-09-26

申请号：US17282654

申请日：2019-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Joonho Park ,  Bongsik Kwak ,  Sungkyu Kim ,  Seonghun Lee ,  Jihyun Lee

IPC: H02J50/40 ,  H02J50/80 ,  H02J50/10 ,  H02J50/60 ,  H04B5/00

CPC classification number: H02J50/402 ,  H02J50/10 ,  H02J50/60 ,  H02J50/80 ,  H04B5/0087

Abstract: The present disclosure relates to a wireless power transmission device. A wireless power transmission device according to an embodiment of the present disclosure includes: a coil part including a plurality of partially overlapping coils; a coil combination generator configured to generate coil combinations including at least one of the plurality of coils; and a controller configured to transmit a coil selection signal through the coil combinations and to select an operating coil combination from the coil combinations based on a response intensity of a response signal for the coil selection signal and charging efficiency of a wireless power reception device. Accordingly, a high-efficiency charging area can be extended in partially overlapping multiple coils.