公开(公告)号：US20210249907A1

公开(公告)日：2021-08-12

申请号：US17244562

申请日：2021-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Jinmoo PARK ,  Jeongkyo SEO ,  Beomseok CHAE ,  Jaesung LEE ,  Jihyun LEE

IPC: H02J50/12 ,  H01F38/14 ,  B60L53/38 ,  B60L53/122 ,  B60L53/124 ,  B60L53/126 ,  H02J50/90

Abstract: A wireless power transmitter that transfers power to a wireless power receiver includes a coil assembly comprising first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; a series capacitance; a shielding extending to at least 2 mm beyond an outer boundary of the coil assembly, has a thickness of at least 1.5 mm and being composed of Mn—Zn; and a full-bridge inverter driving each of coils included in the coil assembly individually.

公开(公告)号：US20190020848A1

公开(公告)日：2019-01-17

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: H04N5/63 ,  H02J50/05 ,  H02M3/335

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：US20210206488A1

公开(公告)日：2021-07-08

申请号：US16499690

申请日：2019-07-23

Applicant: LG ELECTRONICS INC.

Inventor： Seokhee YI ,  Nakyeong KIM ,  Jeongkyo SEO ,  Kwangho AN ,  Beomseok CHAE

IPC: B64C39/02 ,  B64D47/08 ,  B64D45/08 ,  B64D27/24 ,  B64D47/02 ,  G05D1/00 ,  H04W72/14 ,  H04W4/80

Abstract: A station recognition and a landing method are disclosed. More specifically, an unmanned aerial robot includes a camera sensor configured to capture a first pattern that is marked on a station cover and is used for a station identification and a second pattern that is marked inside a station and is used for a precision landing; a transceiver configured to transmit and receive a radio signal; and a processor functionally connected to the camera sensor and the transceiver, wherein the processor is configured to determine a landing station for landing based on the first pattern captured by the camera sensor, control the transceiver to transmit a radio signal that indicates the landing station to open the station cover, and perform the precision landing at the landing station based on the second pattern of the landing station.

公开(公告)号：US20190207411A1

公开(公告)日：2019-07-04

申请号：US16325540

申请日：2016-12-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyoungseok KIM ,  Jeongkyo SEO ,  Jinmoo PARK ,  Beomseok CHAE

IPC: H02J7/02 ,  H02J50/10 ,  H02J50/80 ,  H01F38/14 ,  H02J50/90

CPC classification number: H02J7/025 ,  H01F38/14 ,  H02J7/02 ,  H02J50/10 ,  H02J50/80 ,  H02J50/90

Abstract: According to one embodiment of the present invention, a wireless power transmitter for transferring power to a wireless power receiver, the wireless power transmitter includes a coil assembly including a plurality of coils, a power conversion unit configured to convert an input direct current (DC) into an alternating current (AC) for driving the coil assembly, and a communication/control unit configured to communicate with the wireless power receiver and control an amount of power to be transferred to the wireless power receiver using the coil assembly, wherein the plurality of coils are arranged in first and second directions, wherein each of the plurality of coils has a substantially rectangular frame structure having a through hole at a center, and is arranged so that at least portion of the each coil overlaps, in a plane, with a neighboring coil in the first and second directions.

公开(公告)号：US20210116941A1

公开(公告)日：2021-04-22

申请号：US16843223

申请日：2020-04-08

Applicant: LG ELECTRONICS INC.

Inventor： Sanghak LEE ,  Jeongkyo SEO ,  Beomseok CHAE ,  Hyunjai SHIM ,  Pilwon KWAK

IPC: G05D1/10 ,  G01S17/894 ,  G05D1/00 ,  G08G5/00 ,  B60L53/12 ,  B64C39/02 ,  B64D47/08 ,  B64D27/24

Abstract: A flight system for indoor positioning includes an unmanned aerial robot, and a station and a server of the unmanned aerial robot. The unmanned aerial robot may sense a plurality of laser beams generated from the station through a first camera and/or a first sensor, perform adjustment such that a horizontal axis position of the unmanned aerial robot is located at a center position of a measurement space for the indoor positioning based on the plurality of sensed laser beams, and perform positioning in the measurement space while flying in a vertical direction.

公开(公告)号：US20190312464A1

公开(公告)日：2019-10-10

申请号：US16450263

申请日：2019-06-24

Applicant: LG ELECTRONICS INC.

Inventor： Jinmoo PARK ,  Jeongkyo SEO ,  Beomseok CHAE ,  Jaesung LEE ,  Jihyun LEE

IPC: H02J50/12 ,  H01F38/14 ,  H02J7/02 ,  B60L53/12 ,  B60L53/38 ,  H02J5/00 ,  H02J50/90

Abstract: A wireless power transmitter that transfers power to a wireless power receiver includes a coil assembly comprising first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; a series capacitance; a shielding extending to at least 2 mm beyond an outer boundary of the coil assembly, has a thickness of at least 1.5 mm and being composed of Mn—Zn; and a full-bridge inverter driving each of coils included in the coil assembly individually.

公开(公告)号：US20200220389A1

公开(公告)日：2020-07-09

申请号：US16713166

申请日：2019-12-13

Applicant: LG ELECTRONICS INC.

Inventor： Jaesoon KWON ,  Hwanyong KIM ,  Beomseok CHAE ,  Seonghun LEE

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

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：US20170368945A1

公开(公告)日：2017-12-28

申请号：US15541180

申请日：2016-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Jinmoo PARK ,  Jeongkyo SEO ,  Beomseok CHAE ,  Jaesung LEE ,  Jihyun LEE

IPC: B60L11/18 ,  H02J50/90 ,  H02J50/12 ,  H01F38/14

CPC classification number: H02J50/12 ,  B60L53/12 ,  B60L53/38 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/90 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/14

Abstract: According to an embodiment of present invention, a wireless power transmitter for a vehicle that transfers power to a wireless power receiver includes: a coil assembly comprising first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; and a full-bridge inverter driving each of the coils included in the coil assembly individually, wherein the first and second bottom coils and the top coil have a substantially rectangular frame structure with a through hole in the center, the top coil lies on a plane surface in the middle between the first and second bottom coils, and a distance from the center of the first and second bottom coils to the center of the top coil is set to a range of 23 mm to 25 mm.

公开(公告)号：US20170141604A1

公开(公告)日：2017-05-18

申请号：US15319980

申请日：2015-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jaesung LEE ,  Jeongkyo SEO ,  Jungjoon LEE ,  Beomseok CHAE ,  Jihyun LEE ,  Kyunghwan KIM

IPC: H02J7/02 ,  H02J50/60 ,  B60L11/18

Abstract: The present disclosure relates to a foreign object detection method of a wireless power transmitter, and the method may include acquiring the frequency characteristics of a current flowing through a coil within the wireless power transmitter, comparing a peak frequency with a resonant frequency, and detecting whether or not the foreign object is placed on the transmitter through the comparison. In addition, the present disclosure relates to an interference avoidance method of a wireless power transmitter, and the method may include connecting a head unit of an automobile in a wireless manner through a communication device, receiving a first signal for avoiding interference from the head unit to stop wireless charging or change a first frequency band to a second frequency band, and receiving a second signal from the head unit to resume the wireless charging or change to the first frequency band.

公开(公告)号：US20230231419A1

公开(公告)日：2023-07-20

申请号：US18186627

申请日：2023-03-20

Applicant: LG ELECTRONICS INC.

Inventor： Jinmoo PARK ,  Jeongkyo SEO ,  Beomseok CHAE ,  Jaesung LEE ,  Jihyun LEE

IPC: H02J50/12 ,  H01F38/14 ,  B60L53/38 ,  B60L53/122 ,  B60L53/124 ,  B60L53/126 ,  H02J7/00 ,  H02J50/90

CPC classification number: H02J50/12 ,  B60L53/38 ,  B60L53/122 ,  B60L53/124 ,  B60L53/126 ,  H01F38/14 ,  H02J7/00304 ,  H02J7/00308 ,  H02J50/90 ,  H02J7/00309

Abstract: A wireless power transmitter configured to transfer power to a wireless power receiver including primary coils comprising first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom coils and consisting of a single layer of 12 turns; a shielding; and a full-bridge inverter, wherein the first and second bottom coils and the top coil have a substantially rectangular frame structure with a through hole in the center, wherein the top coil lies on a plane surface in the middle between the first and second bottom coils, wherein a distance from the center of the first and second bottom coils to the center of the top coil is set to a range of 21 mm to 25 mm, wherein the first and second bottom coils have a height of 48 mm to 50 mm and a width of 43 mm to 45 mm, and the through hole in the first and second bottom coils has a height of 25 mm to 27 mm and a width of 21 mm to 23 mm, wherein the top coil has a height of 45 mm to 47 mm and a width of 48.5 mm to 50.5 mm, and the through hole in the top coil has a height of 20 mm to 22 mm and a width of 24.5 mm to 26.5 mm, wherein the first and second bottom coils and the top coil have a thickness of 0.9 mm to 1.3 mm, wherein an amount of power which is transferred is controlled based on an input voltage of the full-bridge inverter, wherein the input voltage has a range of 1 V to 18 V, wherein an operating frequency to control the amount of the power is within a range of 140 kHz to 150 kHz, wherein an assembly of the primary coils and the shielding has a self-inductance value of 11.3 µH, wherein the full-bridge invertor drives a series capacitance, and wherein a value of the series capacitance is 139 nF.