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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
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.
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12.发明申请公开(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
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.
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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
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.
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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
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.
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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
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.
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Patent Agency Ranking
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
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.
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17.发明申请公开(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
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.
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公开(公告)号：US20170291473A1
公开(公告)日：2017-10-12
申请号：US15425658
申请日：2017-02-06
Applicant: LG ELECTRONICS INC.
Inventor： Bumsuk KIM , Kyunghwan KIM , Namsik YIM , Joohyung KIM , Junggu LEE , Junyoung LIM
CPC classification number: B60H1/3217 , B60H1/00485 , B60H1/00978 , B60H1/3223 , B60H1/3225 , B60H2001/3266 , F04B49/03 , F04D27/0292 , F25B49/005
Abstract: A safety device for a vehicle can include an impulse sensor configured to sense an impact to the vehicle and generate an impulse signal based on the impact, a compressor configured to compress refrigerant for a refrigeration cycle of the vehicle, and a safety valve connected to the compressor and configured to receive the impulse signal from the impulse sensor, and in response to the impulse signal exceeding a predetermined value, open the safety valve to place an inner space of the compressor in communication with an outside of the compressor for discharging the refrigerant outside the vehicle.
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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
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.
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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
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.
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