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：US10992186B2

公开(公告)日：2021-04-27

申请号：US16468618

申请日：2017-08-03

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan Kim ,  Jinho Youn ,  Seonghun Lee

IPC: H02J50/30 ,  H02J50/80 ,  G02B3/00 ,  H02J7/02

Abstract: The present specification discloses a wireless power transmission device and method thereof. Here, the wireless power transmission device according to an embodiment of the present invention includes: a laser light source unit; a light output unit which emits laser light generated from the laser light source to a light receiving unit of the wireless power receiving device; and a control unit which controls shaping of the emitted light according to the angle of arrival with the light receiving unit so that an overfill loss is less than a predetermined threshold value. Here, the control unit detects the point at which the power conversion efficiency of the light receiving unit is highest, and sets and controls the power density value of the emitted light at the detected point.

公开(公告)号：US09793763B2

公开(公告)日：2017-10-17

申请号：US15381361

申请日：2016-12-16

Applicant: LG ELECTRONICS INC.

Inventor： Seonghun Lee ,  Byungsang Jung ,  Hwanyong Kim ,  Seungje Park ,  Sangdoo Ha ,  Yongjun Son ,  Seonwook Park ,  Jaesung Yang ,  Wonbok Lee ,  Gyoocheol Choi ,  Joonggil Jeong

IPC: H01F37/00 ,  H02J50/12 ,  H01F38/14 ,  F25D25/02 ,  F25D29/00 ,  F25D27/00 ,  F25D11/00

CPC classification number: H02J50/12 ,  F25D11/00 ,  F25D25/02 ,  F25D25/024 ,  F25D27/005 ,  F25D29/008 ,  F25D2325/022 ,  F25D2400/40 ,  F25D2700/02 ,  H01F27/2804 ,  H01F27/365 ,  H01F38/14

Abstract: Disclosed is a refrigerator for uniformly illuminating an inner space thereof. The refrigerator includes a cabinet including a storage compartment having a predetermined size, a shelf installed in the storage compartment, the shelf including a light source unit for illuminating an inside of the storage compartment, a transmitter connected to an external power supply for wirelessly transmitting power, the transmitter having a primary resonance frequency within a predetermined range, and a receiver for wirelessly receiving the power from the transmitter so as to supply the power to the light source unit of the shelf, the transmitter transmitting the power to the receiver using a secondary resonance frequency generated when the receiver is located close to the transmitter.

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：US11296556B2

公开(公告)日：2022-04-05

申请号：US16685874

申请日：2019-11-15

Applicant: LG ELECTRONICS INC.

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

IPC: H02J7/00 ,  H02J50/40 ,  H02J7/02 ,  H02J50/10

Abstract: A power relay device includes a power receiver configured to wirelessly receive power of a first class when coupled with a wireless power transmission device, a first power converter configured to convert power supplied from the power receiver into a form appropriate for a first mobile terminal, a second power converter configured to receive power from the first power converter and to convert the power into power of a second class, and a power transmitter configured to wirelessly transmit the power of the second class to a second mobile terminal.

公开(公告)号：US11289950B2

公开(公告)日：2022-03-29

申请号：US16713166

申请日：2019-12-13

Applicant: LG ELECTRONICS INC.

Inventor： Jaesoon Kwon ,  Hwanyong Kim ,  Beomseok Chae ,  Seonghun Lee

IPC: H02J7/00 ,  H02J50/40 ,  H02J50/10 ,  H02J50/70

Abstract: A wireless charging apparatus is disclosed. The wireless charging apparatus includes a plurality of coil arrays disposed so as to partially overlap each other, and a shielding member disposed at one side of each of the coil arrays to block a leaked magnetic field. The coil arrays include a first coil array including a plurality of transmission coils disposed adjacent to each other, a second coil array including a smaller number of transmission coils than the first coil array and disposed under the first coil array, and a third coil array including the same number of transmission coils as the second coil array and disposed on the first coil array. As a result, it is possible to simultaneously charge a plurality of devices requiring different amounts of power.

公开(公告)号：US11271436B2

公开(公告)日：2022-03-08

申请号：US16627200

申请日：2018-06-28

Applicant: LG Electronics Inc.

Inventor： Sungkyu Kim ,  Jeongkyo Seo ,  Jinmoo Park ,  Seonghun Lee ,  Bongsik Kwak ,  Jaesung Lee ,  Jihyun Lee ,  Gyunghwan Yook ,  Joonho Park ,  Youngchan Cho

IPC: H02J50/80 ,  H02J50/12 ,  H01F38/14 ,  H02J50/40 ,  H02J50/60 ,  H02J7/02 ,  H04B5/00 ,  H02J50/90 ,  H04L27/02

Abstract: A multi-coil based wireless power transmission device is disclosed that includes a primary coil array forming a magnetic coupling with a secondary coil provided in a wireless power reception device to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one to selectively drive each of the plurality of primary coils; a communication and control unit controlling the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven based on the degree of magnetic coupling formed by each primary coil and the secondary coil, thereby determining output, which can be provided by the primary coil array, within a value obtained by summing all the maximum outputs individually set to the respective primary coils.

公开(公告)号：US11171801B2

公开(公告)日：2021-11-09

申请号：US16169360

申请日：2018-10-24

Applicant: LG Electronics Inc.

Inventor： Seonghun Lee ,  Hwanyong Kim ,  Sooyong Park

IPC: H04L12/28 ,  G08C17/04 ,  G08C17/02 ,  H04M1/72 ,  H04M1/72415 ,  H04M1/72412

Abstract: Disclosed is a method for controlling a command input device. The method includes: sensing contact between a home appliance and the command input device; based on sensing the contact between the home appliance and the command input device, determining the home appliance as a target home appliance to be controlled by the command input device; and based on the determination of the home appliance as the target home appliance to be controlled by the command input device, activating a remote controller provided by the command input device and configured to control the target home appliance.

公开(公告)号：US11168430B2

公开(公告)日：2021-11-09

申请号：US16626096

申请日：2018-06-21

Applicant: LG ELECTRONICS INC.

Inventor： Sooyong Park ,  Kyunghwan Kim ,  Hwanyong Kim ,  Seonghun Lee ,  Byungsang Jung

IPC: D06F34/08 ,  D06F37/30 ,  D06F37/04 ,  D06F37/26

Abstract: Disclosed is a washing machine comprising: a tub which accommodates washing water; a drum which is disposed inside the tub, accommodates cloth, and is rotatable; a transmission coil which is disposed in the tub and supplies power wirelessly; a reception coil which is disposed in the drum and receives the power transmitted from the transmission coil; and a washing force reinforcing unit which is disposed in the drum, operated by the power delivered from the reception coil, and provides washing force to the cloth.