公开(公告)号：US10367368B2

公开(公告)日：2019-07-30

申请号：US15484728

申请日：2017-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Gyunghwan Yuk ,  Jaesung Lee ,  Jaesoon Kwon ,  Jinsup Park ,  Jeongkyo Seo ,  Byungsang Jung ,  Youngchan Cho

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

Abstract: The present relates to a wireless power transmitter performing communication with a wireless power receiver, and a wireless power transfer method thereof. The wireless power transmitter includes a power conversion unit configured to transmit a wireless power signal transferred in a form of an energy field, such as an electric field, a magnetic field or an electromagnetic field, and a power transmission control unit configured to transfer power to the wireless power receiver using the wireless power signal, wherein the power transmission control unit is configured to control the power conversion unit to transmit a near-field communication (NFC) detection signal, other than the wireless power signal, when a preset condition is satisfied, and wherein the power transmission control unit controls the wireless conversion unit in a different manner according to whether or not a response signal to the NFC detection signal is detected.

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：US11283307B2

公开(公告)日：2022-03-22

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: H02J7/00 ,  H02J50/80 ,  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：US09997836B2

公开(公告)日：2018-06-12

申请号：US14621772

申请日：2015-02-13

Applicant: LG Electronics Inc.

Inventor： Jaesoon Kwon ,  Jeongkyo Seo ,  Joosung Hwang

IPC: H01Q9/04 ,  H02J50/70 ,  H02J50/90 ,  H02J50/12 ,  H01Q1/22 ,  H01Q1/48 ,  H02J7/02 ,  H01Q1/52 ,  H01Q9/40 ,  H01Q21/30 ,  H01Q5/364 ,  H01Q1/32 ,  H04B5/00

CPC classification number: H01Q9/0407 ,  H01Q1/22 ,  H01Q1/3291 ,  H01Q1/48 ,  H01Q1/52 ,  H01Q5/364 ,  H01Q9/40 ,  H01Q21/30 ,  H02J7/025 ,  H02J50/12 ,  H02J50/70 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0075

Abstract: A reradiation antenna including an insulation panel; a ground contact formed on one side of the insulation panel; a slot formed by eliminating a part of the ground contact by exposing the insulation panel; a power feeding unit formed on the insulation panel between the slot and separated from the ground contact and connected with a power source using a first end of the power feeding unit; and a radiation unit formed on one side of the insulation panel, and connected with a second end of the power feeding unit positioned at an opened end of the slot.

公开(公告)号：US11469621B2

公开(公告)日：2022-10-11

申请号：US16707207

申请日：2019-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunsoo Lee ,  Jaesoon Kwon ,  Hwanyong Kim ,  Sooyong Park ,  Beom Seok Chae ,  Hyengcheul Choi ,  Seong Hun Lee

IPC: H02J7/00 ,  H02J50/40 ,  H01F38/14 ,  H02J7/02

Abstract: Provided are a wireless charging apparatus in which multiple coils overlaps with one another on separated cores, and a wireless charging system including such wireless charging apparatus. According to an embodiment of the present disclosure, the wireless charging apparatus includes a plurality of plate coils spaced apart from one another, a first coil disposed on the plurality plate coils, and a second coil disposed on the first coil to partially overlap with the first coil.

公开(公告)号：US11437860B2

公开(公告)日：2022-09-06

申请号：US16727040

申请日：2019-12-26

Applicant: LG ELECTRONICS INC.

Inventor： Jaesoon Kwon ,  Hwanyong Kim ,  Beom Seok Chae ,  Sooyong Park ,  Seong Hun Lee ,  Eunsoo Lee ,  Hyengcheul Choi

IPC: H02J50/00 ,  H02J50/40 ,  H02J50/90 ,  H01F27/32 ,  H01F38/14 ,  H02J7/02

Abstract: The present disclosure provides a wireless charging device in which multiple coils are overlapped with one another on separated cores. According to an embodiment of the present disclosure, the wireless charging device includes two flat cores spaced apart from each other, and a first layer coil to a fourth layer coil disposed above the two plate cores and disposed on different layers from one another and overlapped with one another, so that the multiple cores are overlapped with one another on the separated cores.

公开(公告)号：US11049648B2

公开(公告)日：2021-06-29

申请号：US16339988

申请日：2017-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Taewook Kwon ,  Bongsik Kwak ,  Jeongkyo Seo ,  Beomseok Chae ,  Jaesoon Kwon ,  Sungkyu Kim

IPC: H01F38/14 ,  H02J50/12 ,  H02J50/80 ,  H01F27/28 ,  H02J50/40

Abstract: According to an embodiment of the present invention, a resonator transmitting power in a resonant mode includes: a first coil having a wire group including three wires arranged in line and alternately extended in first direction and second direction orthogonal to the first direction; and a second coil including three sub-coils and ferrite plates, and the first coil may be stacked adjacent to the second coil, and the first coil may correspond to a resonance coil driven in the resonance mode and the second coil may correspond to an induction coil driven in an induction mode, respectively.