公开(公告)号：US20220199305A1

公开(公告)日：2022-06-23

申请号：US17673245

申请日：2022-02-16

Applicant: LG INNOTEK CO., LTD.

Inventor： Mi Jin Lee ,  Ji Yeon Song ,  Yu Seon Kim ,  Jong Wook Lim ,  Seok Bae ,  Sang Won Lee

IPC: H01F1/34 ,  H01F3/04 ,  H01F3/08 ,  H01F17/00 ,  H01F17/06 ,  H01F27/245 ,  H01F41/02

Abstract: An inductor includes a first magnetic body having a toroidal shape and having a ferrite; and a second magnetic body configured to be different from the first magnetic body and including a metal ribbon, wherein the second magnetic body includes an outer magnetic body disposed on an outer circumferential surface of the first magnetic body and an inner magnetic body disposed on an inner circumferential surface of the first magnetic body, and each of the outer magnetic body and inner magnetic body is wound in a plurality of layers in a circumferential direction of the first magnetic body.

公开(公告)号：US10476316B2

公开(公告)日：2019-11-12

申请号：US15113385

申请日：2015-01-21

Applicant: LG INNOTEK CO., LTD.

Inventor： Ji Yeon Song ,  Seok Bae ,  Soon Young Hyun

IPC: H02J50/10 ,  H02J50/70 ,  H05K1/16 ,  H02J7/02 ,  H01F27/28 ,  H01F27/40 ,  H01F38/14

Abstract: Provided are a wireless charging board and a wireless charging device. The wireless charging board includes: a shielding layer; a coil pattern disposed on one surface of the shielding layer; and a magnetic pattern disposed in a space of a central part of the coil pattern.

公开(公告)号：US09973026B2

公开(公告)日：2018-05-15

申请号：US14812536

申请日：2015-07-29

Applicant: LG INNOTEK CO., LTD.

Inventor： Seok Bae ,  Ji Yeon Song ,  Won Ha Moon ,  Sang Won Lee ,  Jong Hyuk Lee ,  Soon Young Hyun

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/12 ,  H02J50/70 ,  H01F38/14 ,  H02J17/00 ,  H01F1/153

CPC classification number: H02J50/70 ,  H01F1/15308 ,  H01F38/14 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12

Abstract: Disclosed are a soft magnetic alloy and a wireless charging apparatus including the soft magnetic alloy. The soft magnetic alloy has a chemical formula expressed as Fe100-x-yCuxBy (wherein x ranges from 0.1 at % to 1.7 at % and y ranges from 2.3 at % to 9.6 at %). Without adding any expensive alloying element, only iron (Fe), copper (Cu), and boron (B) are used to obtain a nanocrystalline soft magnetic alloy that has a low coercive force and a high saturation magnetic flux density. The nanocrystalline soft magnetic alloy is applied to a wireless power transmitter and a wireless power receiver. Thereby, it is possible to make a shield member thin and increase a power transmission capacity. The soft magnetic alloy is easily processed into a flake form. The soft magnetic alloy processed in this way is applied to the shield member. Thereby, it is possible to increase permeability in a surface direction.

公开(公告)号：US09887030B2

公开(公告)日：2018-02-06

申请号：US14605627

申请日：2015-01-26

Applicant: LG INNOTEK CO., LTD.

Inventor： Dong Hyuk Lee ,  Ji Yeon Song

IPC: H01F38/14 ,  H02J5/00 ,  H02J7/02 ,  H01F7/02 ,  H02J50/90 ,  H02J50/12

CPC classification number: H01F7/0231 ,  H01F7/0252 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/70 ,  H02J50/80 ,  H02J50/90

Abstract: A wireless power receiver includes a coil to receive the power; and a magnet to generate an intensity of a magnetic flux density sensed by a sensor of the wireless power transmitter. The coil has an empty central region. The magnet is disposed in the empty central region of the coil. The magnet includes an electric steel sheet.