公开(公告)号：US20240372400A1

公开(公告)日：2024-11-07

申请号：US18280442

申请日：2022-03-07

Applicant: LG Electronics Inc.

Inventor： Kyunghwan KIM ,  Seonghun LEE ,  Hyoungseok KIM ,  Euisuk CHOI

IPC: H02J50/00 ,  H01F27/28 ,  H01F38/14 ,  H02J50/10 ,  H02J50/40 ,  H02J50/70

Abstract: A wireless power transfer device transmits wireless power to a wireless power reception device and comprises primary coils, transmitting wireless power by magnetically coupling to secondary coils of the wireless power reception device, and a shield protecting the wireless power transfer device from a magnetic field from at least one of the primary coils. The primary coils comprise: a first bottom coil and a second bottom coil not overlapping each other on a first plane; and a first top coil and a second top coil not overlapping each other on a second plane located above the first plane, wherein one side of the first top coil is located above the first bottom coil, the other side of the first top coil is located above the second bottom coil, and one side of the second top coil is located above the second bottom coil.

公开(公告)号：US20240146829A1

公开(公告)日：2024-05-02

申请号：US18278981

申请日：2022-02-25

Applicant: LG ELECTRONICS INC.

Inventor： Jaeyeol KIM ,  Seonghun LEE ,  Jinho YOUN ,  Yongcheol PARK

IPC: H04L69/24 ,  H02J50/12 ,  H02J50/80

CPC classification number: H04L69/24 ,  H02J50/12 ,  H02J50/80

Abstract: The present disclosure relates to a method for transmitting data packet information, wherein the method is performed by a wireless power transmitter in a wireless power transmission system, and comprises the steps of: entering a power transfer phase; receiving a plurality of control error (CE) packets from a wireless power receiver during the power transfer phase; determining the intervals between the plurality of CE packets; and transmitting the data packet information to the wireless power receiver during the power transfer phase on the basis of the intervals, wherein the length of the data packet information is determined on the basis of the length of the intervals.

公开(公告)号：US20220173771A1

公开(公告)日：2022-06-02

申请号：US17675882

申请日：2022-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Jinho YOUN ,  Jaeyeol KIM ,  Seonghun LEE ,  Hyokune HWANG

IPC: H04B5/00 ,  H02J50/80 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J7/02

Abstract: A method for transmitting a control error packet to a wireless power transmitter includes transmitting the control error packet including a control error value to the wireless power transmitter within a first time interval or a second time interval larger than the first time interval, based on a type of a power profile and a version of wireless power transfer standard with which the wireless power receiver and the wireless power transmitter comply. When the version of the wireless power transfer standard is a first version, the wireless power receiver transmits the control error packet within the first time interval. When the version of the wireless power transfer standard is a second version higher than the first version and the type of the power profile is an extended power profile, the wireless power receiver transmits the control error packet within the second time interval.

公开(公告)号：US20210266042A1

公开(公告)日：2021-08-26

申请号：US17260790

申请日：2019-07-16

Applicant: LG ELECTRONICS INC.

Inventor： Joonho PARK ,  Bongsik KWAK ,  Sungkyu KIM ,  Yongcheol PARK ,  Seonghun LEE ,  Jihyun LEE

IPC: H04B5/00 ,  H04B17/10 ,  H04W52/38 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

Abstract: The present invention relates to an apparatus and a method for supporting heterogeneous communication in a wireless power transmission system. The present disclosure discloses a wireless power receiver comprising: a power pickup unit configured to receive, from a wireless power transmitter, a digital ping signal or wireless power by magnetically coupling with the wireless power transmitter at an operating frequency, and to convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit configured to receive the direct current signal from the power pickup unit, and to perform at least one of an in-band communication using the operating frequency and an out-band communication using a frequency other than the operating frequency; and a load configured to receive the direct current signal from the power pickup unit. As a heterogeneous communication protocol can be selected at an early stage of power transmission between the wireless power transmitter and the wireless power receiver, it is possible to support various applications of wireless power transmission.

公开(公告)号：US20210091601A1

公开(公告)日：2021-03-25

申请号：US17028733

申请日：2020-09-22

Applicant: LG ELECTRONICS INC.

Inventor： Sungkyu KIM ,  Bongsik KWAK ,  Hyunggeol KWAK ,  Seonghun LEE

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

Abstract: A wireless power transmitter can include a power transmitter including a plurality of first transmitting coils and a second transmitting coil; and a controller, in which the plurality of first transmitting coils are disposed on a same plane, the second transmitting coil is disposed on a different plane than the plurality of first transmitting coils, the second transmitting coil is disposed at a center of a region corresponding to the plurality of first transmitting coils, an area of a region corresponding to the second transmitting coil is smaller than an area of the region corresponding to the plurality of first transmitting coils, and the controller is configured to transmit power to a wireless power receiver through the plurality of first transmitting coils and the second transmitting coil when a receiving coil in the wireless power receiver is of a first type, and transmit power to the wireless power receiver through the second transmitting coil when the type of the receiving coil is of a second type.

公开(公告)号：US20200208325A1

公开(公告)日：2020-07-02

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: D06F37/30 ,  D06F37/26 ,  D06F37/04

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.

公开(公告)号：US20190334389A1

公开(公告)日：2019-10-31

申请号：US16475281

申请日：2018-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Jeongkyo SEO ,  Jinho YOUN ,  Seonghun LEE

IPC: H02J50/60 ,  H02J7/02 ,  H02J50/90 ,  H02J50/30 ,  G02B27/14 ,  G01V8/14

Abstract: Disclosed in the present specification are a wireless power transmission apparatus, and a method therefor. The wireless power transmission apparatus (Tx) according to one embodiment of the present invention comprises: a laser light source unit; a light output unit for outputting, for wireless charging, laser light generated by the laser light source unit to a light receiving unit of a wireless power receiving apparatus; a foreign object (FO) sensing unit for sensing an FO by utilizing supplementary light; and a control unit for controlling the laser light output when an FO is sensed by the FO sensing unit.

公开(公告)号：US20170214277A1

公开(公告)日：2017-07-27

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

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：US20240333040A1

公开(公告)日：2024-10-03

申请号：US18290606

申请日：2022-07-20

Applicant: LG Electronics Inc.

Inventor： Kyunghwan KIM ,  Seonghun LEE

IPC: H02J50/40 ,  H02J50/10 ,  H02J50/80

CPC classification number: H02J50/402 ,  H02J50/10 ,  H02J50/80

Abstract: A wireless power transmitter includes: a plurality of primary coils for transmitting wireless power through magnetic coupling with a secondary coil of a wireless power receiver; and a plurality of permanent magnets arranged not to overlap the plurality of primary coils. The plurality of primary coils include: a first bottom coil and a second bottom coil which are arranged side by side in the width direction on a first plane and do not overlap each other; and a top coil disposed on a second plane positioned above the first plane. One side of the top coil is positioned above the first bottom coil, and the other side of the top coil is positioned above the second bottom coil. The plurality of permanent magnets are arranged between the first bottom coil and the second bottom coil at certain intervals along concentric circles around an axis perpendicular to the first plane.

公开(公告)号：US20240297536A1

公开(公告)日：2024-09-05

申请号：US18280895

申请日：2021-03-09

Applicant: LG ELECTRONICS INC.

Inventor： Hyoungseok KIM ,  Jonggu KIM ,  Seonghun LEE ,  Jaeyeol KIM

IPC: H02J50/90 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

CPC classification number: H02J50/90 ,  H02J50/12 ,  H02J50/402 ,  H02J50/80

Abstract: The present invention relates to a wireless power transmission device and a wireless power system comprising same. The wireless power transmission device and wireless power system comprising same, according to one embodiment of the present invention, comprise: a coil assembly including a plurality of coils; a first resonant capacitor connected to a first group of the plurality of coils; and a second resonant capacitor connected to a second group of the plurality of coils, and connected in parallel to the first resonant capacitor, wherein the number of groups of the plurality of coils is smaller than the number of the plurality of coils. Accordingly, a circuit for the selection and operation of at least some of the plurality of coils can be simply implemented, and charging can be quickly entered.