公开(公告)号：US20170279308A1

公开(公告)日：2017-09-28

申请号：US15460567

申请日：2017-03-16

Applicant: LG ELECTRONICS INC.

Inventor： Byungsang JUNG ,  Seonghun LEE ,  Hwanyong KIM ,  Seonwook PARK ,  Seungje PARK ,  Yongjun SON ,  Jaesung YANG ,  Gyoocheol CHOI

IPC: H02J50/12 ,  H05B37/02 ,  H01F38/14 ,  H05B33/08

CPC classification number: H02J50/12 ,  H01F38/14 ,  H05B33/0809 ,  H05B33/0842 ,  H05B37/0272

Abstract: A wireless power transmission system using multiple coils comprises a transmitter; and a receiver, wherein the transmitter includes a module for receiving a predetermined voltage, and a primary coil for generating a primary resonance frequency in accordance with the received voltage. The receiver spaced apart from the transmitter includes a load for emitting light, capacitors connected in series or in parallel in accordance with an equivalent resistance of the load, and a secondary coil for generating a secondary resonance frequency greater than the primary resonance frequency.

公开(公告)号：US20200161906A1

公开(公告)日：2020-05-21

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: H02J50/80 ,  H02J7/00 ,  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：US20190326784A1

公开(公告)日：2019-10-24

申请号：US16458819

申请日：2019-07-01

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 ,  F25D25/02 ,  F25D29/00 ,  F25D27/00 ,  H01F38/14 ,  F25D11/00

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：US20170211875A1

公开(公告)日：2017-07-27

申请号：US15381402

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: F25D27/00 ,  F25D11/00 ,  H02J50/12 ,  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：US20220247230A1

公开(公告)日：2022-08-04

申请号：US17597790

申请日：2020-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Gyunghwan YOOK ,  Hyoungseok KIM ,  Hwanyong KIM

IPC: H02J50/60 ,  H02J50/20 ,  H02J50/80 ,  H02J50/12

Abstract: A wireless power reception apparatus according to an embodiment of the present specification comprises: a power pickup circuit for receiving, by magnetic coupling to a wireless power transmission apparatus, wireless power from the wireless power transmission apparatus; and a communication/control circuit for communicating with the wireless power transmission apparatus and controlling the received wireless power, wherein the communication/control circuit transmits, before entering a power transmission phase, to the wireless power transmission apparatus, information regarding a first reference quality factor Qt1′(ref) measured at a first frequency f1(ref) and information regarding a second reference quality factor Qt2′(ref) measured at a second frequency f2(ref).

公开(公告)号：US20200266671A1

公开(公告)日：2020-08-20

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：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：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：US20230044514A1

公开(公告)日：2023-02-09

申请号：US17790260

申请日：2019-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Seong Hun LEE ,  Gyunghwan YOOK ,  Hyoung Seok KIM ,  Hwanyong KIM

IPC: H02J50/00 ,  H02J50/10

Abstract: Discussed is a wireless charging device that changes a direction of a magnetic field generated by a transmission coil, through a repeater capable of rotating in a plane, and supports a user terminal in parallel with the repeater, to wirelessly transmit power in various directions and at various angles. The wireless charging device includes a power transmitting module including a plurality of transmission coils arranged side by side, therein, a terminal supporting module including a repeater therein and disposed at a slant with respect to an upper surface of the power transmitting module on the upper surface of the power transmitting module, a moving module to move the terminal supporting module along a direction in which the transmission coils are arranged, and a controller to supply a voltage to any one of the plurality of transmission coils depending on a position of the moving module.

公开(公告)号：US20230032749A1

公开(公告)日：2023-02-02

申请号：US17790266

申请日：2019-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Seong Hun LEE ,  Gyunghwan YOOK ,  Hyoung Seok KIM ,  Hwanyong KIM

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

Abstract: Discussed is a wireless charging device which can change the direction of a magnetic field, generated in a transmission coil, through a vertically and horizontally rotatable repeater, and can hold a user terminal in parallel with the repeater, thereby transmitting wireless power in various directions and at various angles. The wireless charging device includes a case, a flat plate core disposed in the case, multiple transmission coils arranged parallel to each other on the flat plate core, a terminal holder including a repeater therein and disposed on the top surface of the case while sloping with respect to the top surface of the case, and a moving member for moving the terminal holder in the direction in which the plurality of transmission coils are arranged.