公开(公告)号：US20200322049A1

公开(公告)日：2020-10-08

申请号：US16904739

申请日：2020-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Gyunghwan YUK ,  Byungsang JUNG

IPC: H04B10/114 ,  H04B10/80 ,  H02J50/80 ,  H04B10/69 ,  H02J50/30 ,  H04B10/54

Abstract: An optical wireless power transfer system includes a transmission module, which includes a main light source configured to output a main light; a transmitting processor configured to modulate the main light to have a first modulation; a beam splitter configured to pass the main light as a power light; and a reception module. The reception module includes a retro-reflector configured to retro-reflect the main light back to the transmission module; and a receiving processor configured to control the retro-reflector to reflect the main light to have a second modulation based on a power generated by the main light. Further, the beam splitter is further configured to reflect the main light having the second modulation to a first photodiode included in the transmission module.

公开(公告)号：US20190326786A1

公开(公告)日：2019-10-24

申请号：US16375823

申请日：2019-04-04

Applicant: LG ELECTRONICS INC.

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

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

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：US20230100753A1

公开(公告)日：2023-03-30

申请号：US17895434

申请日：2022-08-25

Applicant: LG ELECTRONICS INC.

Inventor： Changwoo SUNG ,  Kyunghwan KIM ,  Minjung KIM

IPC: H02K9/06 ,  H02K7/00 ,  H02K21/22

Abstract: An outer rotor motor includes a frame, a stator disposed on the frame, a coil disposed on the stator, a rotating shaft rotatably coupled to a central region of the frame, a cover coupled to the rotating shaft and surrounding the stator, and a magnet disposed on the cover and facing the stator. The cover may include a fan bracket projecting in a radial direction from a radially outer surface, and a plurality of blades extending in an axial direction from the radially outer surface.

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.

公开(公告)号：US20200091774A1

公开(公告)日：2020-03-19

申请号：US16468618

申请日：2017-08-03

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Jinho YOUN ,  Seonghun LEE

IPC: H02J50/30 ,  H02J50/80 ,  H02J7/02 ,  G02B3/00

Abstract: The present specification discloses a wireless power transmission device and method thereof. Here, the wireless power transmission device according to an embodiment of the present invention includes: a laser light source unit; a light output unit which emits laser light generated from the laser light source to a light receiving unit of the wireless power receiving device; and a control unit which controls shaping of the emitted light according to the angle of arrival with the light receiving unit so that an overfill loss is less than a predetermined threshold value. Here, the control unit detects the point at which the power conversion efficiency of the light receiving unit is highest, and sets and controls the power density value of the emitted light at the detected point.

公开(公告)号：US20230283119A1

公开(公告)日：2023-09-07

申请号：US18016585

申请日：2020-07-17

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Seonghun LEE ,  Taewook KWON ,  Hyoungseok KIM ,  Hongkwon KIM

IPC: H02J50/70 ,  H02J50/12 ,  H01F27/36

CPC classification number: H02J50/70 ,  H02J50/12 ,  H01F27/36

Abstract: A wireless power transmission apparatus includes a shielding plate, a transmission coil on the shielding plate, and a shielding member disposed on the shielding plate and configured to surround the transmission coil. The shielding plate may shield a magnetic field formed to a lower side of the transmission coil. The shield member can offset the magnetic field formed on the side of the transmission coil. Thus, the embodiment can minimize EMI or EMF caused by the magnetic field formed on the lower side and the side of the transmission coil.

公开(公告)号：US20210265108A1

公开(公告)日：2021-08-26

申请号：US17256624

申请日：2018-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Jihyun LEE ,  Bongsik KWAK ,  Yongcheol PARK

IPC: H01F38/14 ,  H01F27/30 ,  H01F27/36 ,  H02J50/40 ,  H02J50/80

Abstract: The present disclosure relates to a wireless power receiver and a method therefor, the wireless power receiver comprising: a secondary coil which is magnetically coupled to a primary coil provided in a wireless power transmitter so as to receive wireless power from the wireless power transmitter; a shielding member for supporting the secondary coil; a power pickup unit including a rectifier circuit which rectifies an alternating current signal of the wireless power received by the secondary coil into a direct current signal; and a communication/control unit for controlling transmission of the wireless power and communicating with the wireless power transmitter. On the basis of the secondary coil and shielding member according to the present embodiment, slimming of an applied product may be achieved and, simultaneously, the same target performance index (required for a medium power level (for example, 60 W) standard) may be realized.

公开(公告)号：US20210211019A1

公开(公告)日：2021-07-08

申请号：US17142076

申请日：2021-01-05

Applicant: LG ELECTRONICS INC.

Inventor： Inho CHOI ,  Jooseong LEE ,  Kyunghwan KIM

IPC: H02K9/193 ,  H02K5/20 ,  B05B1/02 ,  B05B5/00 ,  B05B5/053 ,  B05B5/16

Abstract: A motor includes: a motor housing; a shaft disposed inside the motor housing and extending along a rotation axis; a rotor having magnetism, and coupled to an outer circumferential surface of the shaft; a stator accommodated in the motor housing, disposed to be spaced apart from an outside of the rotor in a radial direction of the shaft, and wound around with a coil; a nozzle for charging a cooling fluid by applying a voltage, and spraying the cooling fluid to at least one of the rotor and the stator; and a charging plate disposed to be spaced apart from a spray hole of the nozzle, and changes a spray form of the cooling fluid by applying a voltage.

公开(公告)号：US20210013732A1

公开(公告)日：2021-01-14

申请号：US16688661

申请日：2019-11-19

Applicant: LG ELECTRONICS INC.

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

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

Abstract: The present disclosure relates to a wireless charging device capable of efficiently charging one or more user terminals by performing a tilt function with respect to a portion where the user terminal is held. According to an embodiment of the present disclosure, the wireless charging device include a first body, a depression defined in the first body, a terminal holder that is coupled to an inner surface at both sides of the depression using a hinge and rotates with respect to the first body, a wireless charger disposed in the terminal holder, a second body connected to the first body and inclined with respect to the first body, and a display provided in the second body.