公开(公告)号：US20210028653A1

公开(公告)日：2021-01-28

申请号：US17044600

申请日：2019-04-02

Applicant: LG Electronics Inc.

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

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

Abstract: The present disclosure relates to a device and method for controlling transmission of power in a wireless power transmitting system. The present specification discloses a wireless power transmitting method comprising the steps of: performing a digital ping on each of a plurality of coil combinations formed from a plurality of primary coils; receiving a signal intensity packet of each of the coil combinations from the wireless power receiving device; and forming the magnetic coupling by operating a coil combination selected on the basis of the signal intensity packet, and transmitting wireless power to the wireless power receiving device on the basis of the magnetic coupling. Therefore, an optimal multi-coil can be rapidly selected according to the location of the wireless power receiving device.

公开(公告)号：US20200328629A1

公开(公告)日：2020-10-15

申请号：US16915836

申请日：2020-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Yongcheol PARK ,  Jihyun LEE ,  Gyunghwan YOOK

IPC: H02J50/60 ,  H02J50/80 ,  H04B5/00 ,  H02J50/12

Abstract: Provided are an apparatus and method for performing foreign object detection in a wireless power transfer system. The present specification discloses a method comprising receiving a digital ping from the wireless power transmitter; transmitting an identification and configuration packets to the wireless power transmitter; transmitting a foreign object detection (FOD) state packet which indicates a reference Q factor of the wireless power receiver to the wireless power transmitter; and receiving wireless power through magnetic coupling from the wireless power transmitter based on the foreign object detection result of the wireless power transmitter using the reference Q factor. Irrespective of individual characteristics of a wireless power receiver, accuracy and reliability of detecting a foreign object may be improved.

公开(公告)号：US20200244108A1

公开(公告)日：2020-07-30

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

Abstract: The present invention relates to a multi-coil based wireless power transmission device and method. Disclosed in the present specification is a wireless power transmission device comprising: a primary coil array forming a magnetic coupling with a secondary coil, which is provided in a wireless power reception device, so as to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one so as to selectively drive each of the plurality of primary coils; a communication and control unit, which controls the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven on the basis of 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. In an intermediate power level wireless power transmission system, a non-chargeable state due to coil misalignment can be compensated for on the basis of multi-coils, an extended design of a charging area at low cost is simple, and the degree of freedom of the position or the alignment of a reception device can be increased.

公开(公告)号：US20190150111A1

公开(公告)日：2019-05-16

申请号：US16248362

申请日：2019-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin LEE ,  Hanbyul SEO ,  Jihyun LEE

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04

Abstract: The present invention relates to a method for receiving a synchronisation reference signal for device-to-device (D2D) communication by a first terminal in a wireless communication system and an apparatus therefor. More specifically, the present invention comprises a step of receiving a plurality of synchronisation reference signals including a first synchronisation reference signal and a second synchronisation reference signal over a D2D synchronisation reference signal transmission cycle, wherein the first synchronisation reference signal is transmitted by a cluster head for D2D communication and the second synchronisation reference signal is transmitted by a second terminal that belongs to a cluster for the D2D communication.

公开(公告)号：US20190109494A1

公开(公告)日：2019-04-11

申请号：US16215080

申请日：2018-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Jaesung LEE ,  Jinmoo PARK ,  Jihyun LEE

IPC: H02J50/10 ,  H02J50/70 ,  H02J50/80 ,  H02J50/12 ,  H02J50/60

Abstract: A wireless power transfer device includes an inverter configured to convert DC input to an AC waveform that drives a resonant circuit, a primary coil configured to generate a magnetic field, a shield material placed below the primary coil, a current sensor configured to monitor current in the primary coil, and a communications and control unit configured to communicate with a wireless power receiver device and control power transfer, wherein the primary coil consists of a single layer of which a number of turns is 12, and consists of 105 strands Litz wire of which the diameter is 0.08 mm, wherein the shield material is at least 1.5 mm thick and extends at least 2.5 mm beyond the outside of the primary coil, and wherein the primary coil and the shield material has a self-inductance 10.0 μH.

公开(公告)号：US20190007957A1

公开(公告)日：2019-01-03

申请号：US16109250

申请日：2018-08-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin CHAE ,  Hakseong KIM ,  Hanbyul SEO ,  Jihyun LEE ,  Kijun KIM ,  Youngtae KIM

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W76/14 ,  H04L12/911

Abstract: Disclosed is a method for transmission and reception of a device-to-device (D2D) signal by a terminal in a wireless communication system. The method for transmission and reception of a D2D signal, according to an embodiment of the present invention, comprises the steps of: receiving a scheduling assignment comprising a resources pattern for transmission (RPT); and receiving a D2D signal in a subframe indicated in the RPT, wherein each bit of the RPT indicates whether or not the D2D signal is permitted to be transmitted in the subframe within a scheduling assignment period, and wherein, if the number of the subframes comprised in the scheduling assignment period is greater than the number of the bits of the RPT, at least one bit of the RPT indicates whether or not the D2D signal is permitted to be transmitted in two or more subframes.

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：US20170299255A1

公开(公告)日：2017-10-19

申请号：US15516929

申请日：2015-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Hyungki KIM ,  Junyi HEO ,  Jihyun LEE

IPC: F25D25/02 ,  A47B88/477 ,  F25D23/04

CPC classification number: F25D25/025 ,  A47B88/477 ,  A47B2210/175 ,  F25D23/025 ,  F25D23/04 ,  F25D2323/023 ,  F25D2323/024

Abstract: A refrigerator according to an embodiment of the present invention may include: a basket assembly slidably coupled to a first door in a front-to-rear direction of the first door, wherein the basket assembly comprises: a basket configured to accommodate food; a first base provided to be slidable in the front direction of the first door by passing through the opening of the first door, the basket being placed on an upper surface of the first base; a second base provided to be slidable in the rear direction of the first door, the first base being slidably coupled to an upper surface of the second base; and a third base of which a front end is fixed to a rear surface of the first door, wherein the second base is slidably coupled to an upper surface of the third base.

公开(公告)号：US20170227282A1

公开(公告)日：2017-08-10

申请号：US15496260

申请日：2017-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Jihyun LEE ,  Woonkyu Seo ,  Daesung Lee

IPC: F25D29/00 ,  H04N7/18 ,  H04N5/232 ,  H04N5/445 ,  F25D25/02 ,  F25D23/12

CPC classification number: F25D29/005 ,  F25D23/028 ,  F25D23/062 ,  F25D23/12 ,  F25D25/025 ,  F25D29/00 ,  F25D2400/36 ,  F25D2400/361 ,  F25D2500/06 ,  F25D2700/06 ,  F25D2700/08 ,  G06T7/38 ,  G06T2200/32 ,  H04N5/23293 ,  H04N5/44504 ,  H04N7/181

Abstract: Disclosed is a refrigerator. The refrigerator includes a main body having a first storage compartment and a second storage compartment, in which food is stored, a first door configured to open the first storage compartment via pivotal rotation thereof, a second door configured to be moved forward of the second storage compartment to open the second storage compartment, a receptacle configured to be moved along with the second door and received in the second storage compartment, the receptacle serving to store food therein, and a camera installed to the main body to take a picture of the receptacle. The refrigerator further includes a control unit configured to combine a plurality of pictures taken by the camera as the second door is moved and configured to correct the images into an image showing the receptacle.

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.