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公开(公告)号：US20210083521A1
公开(公告)日：2021-03-18
申请号：US17103202
申请日：2020-11-24
Applicant: LG Electronics Inc.
Inventor： Seonghun LEE , Byungsang JUNG , Hwanyong KIM , Seungje PARK , Sangdoo HA , Yongjun SON , Seonwook PARK , Jaesung YANG , Wonbok LEE , Gyoocheol CHOI , Joonggil JEONG
Abstract: Disclosed is a refrigerator for uniformly illuminating an inner space thereof. The refrigerator includes a cabinet including a storage compartment having a predetermined size, a shelf installed in the storage compartment, the shelf including a light source unit for illuminating an inside of the storage compartment, a transmitter connected to an external power supply for wirelessly transmitting power, the transmitter having a primary resonance frequency within a predetermined range, and a receiver for wirelessly receiving the power from the transmitter so as to supply the power to the light source unit of the shelf, the transmitter transmitting the power to the receiver using a secondary resonance frequency generated when the receiver is located close to the transmitter.
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22.发明申请公开(公告)号：US20200382166A1
公开(公告)日：2020-12-03
申请号：US16988367
申请日：2020-08-07
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK , Gyunghwan YOOK , Seonghun LEE
Abstract: The present invention relates to a wireless power transmission system and, more particularly, to an apparatus and a method for performing handover between heterogeneous communication methods. A wireless power transmission apparatus and reception apparatus can indicate whether to support out-band communication thereof on the basis of an out-band flag. The wireless power transmission apparatus can request the wireless power reception apparatus to start a handover by using a bit pattern requesting the handover. The handover procedure to out-band may be performed in a negotiation phase or may be performed in a separate handover phase. Information for establishing an out-band communication connection can be transmitted from the wireless power reception apparatus to the wireless power transmission apparatus through in-band communication. Also, even after the handover to the out-band is completed, it is possible to periodically or intermittently perform the in-band communication in a power transmission phase to detect a swap of the wireless power reception apparatus.
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公开(公告)号：US20200295606A1
公开(公告)日：2020-09-17
申请号：US16793946
申请日：2020-02-18
Applicant: LG ELECTRONICS INC.
Inventor： Joonho PARK , Seonghun LEE , Bongsik KWAK
Abstract: Disclosed are a wireless power transfer apparatus and a method of controlling the same. The wireless power transfer apparatus in one example can include a power transmission circuit including a plurality of coils and configured to transfer power through the plurality of coils, and a controller, wherein the controller is configured to calculate a data value of a coil with respect to each of the plurality of coils, and determine a position of an object in a charge region corresponding to the plurality of coils in a charge region based on a comparison result obtained by comparing the data value calculated for each of the plurality of coils.
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公开(公告)号：US20200259374A1
公开(公告)日：2020-08-13
申请号：US16859519
申请日：2020-04-27
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK , Jeongkyo SEO , Seonghun LEE , Bongsik KWAK , Jaesung LEE
Abstract: A communication method of a wireless power receiver for receiving power in a wireless manner, includes generating information of the wireless power receiver based on a load modulation within a slot being allocated to the wireless power receiver while wireless power is received from a wireless power transmitter; receiving the wireless power from to the wireless power transmitter; generating first information of the wireless power receiver based on the load modulation within a first unallocated slot among the plurality of slots, wherein the first information is in collision with second information generated by another wireless power receiver; demodulating a collision related signal of the wireless power transmitter based on a frequency shift keying (FSK); and executing a collision resolution mechanism.
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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
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.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20170324450A1
公开(公告)日：2017-11-09
申请号：US15526678
申请日：2015-02-06
Applicant: LG ELECTRONICS INC.
Inventor： Seonghun LEE , Bongsik KWAK
CPC classification number: H04B5/0093 , H02J7/025 , H02J50/12 , H02J50/80 , H04B5/0031 , H04B5/0037
Abstract: The present disclosure relates to a wireless power transmitter, a wireless power receiver, and a wireless charging system, in the field of wireless power transmission. A wireless power transmitter configured to transmit wireless power to a wireless power receiver, according to the present invention, comprises: first and second coils which are arranged so that any one of the first and second coils winds around the other one of the first and second coils; a shielding unit having a plurality of shielding members which are sequentially arranged to be spaced apart from one another along the circumference of at least one of the first and second coils so as to form a radial shape; and a control unit adapted to control the first and second coils so that the wireless power is supplied to the wireless power receiver through at least one of the first and second coils.
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公开(公告)号：US20160308397A1
公开(公告)日：2016-10-20
申请号：US15101826
申请日：2015-02-06
Applicant: LG ELECTRONICS INC.
Inventor： Byungsang JUNG , Hyunbeom LEE , Seonghun LEE , Yongcheol PARK
Abstract: The present disclosure relates to a wireless power reception method, a wireless power reception apparatus, and a wireless charging system in a wireless power transmission and reception field, and the wireless power reception apparatus may include a power receiving unit configured to change a magnetic flux to a current to receive power in a wireless manner, and a power controller connected to the power receiving unit to change a resonant frequency to control power received from the power receiving unit, wherein the power controller includes a first capacitor, a second capacitor connected to the first capacitor in parallel, a first switch connected to the second capacitor in series to flow a current in a first direction, a second switch configured to flow a current in a second direction opposite to the first direction, and a switch controller configured to control the first and the second switch.
Abstract translation: 本公开涉及无线电力发送和接收领域中的无线电力接收方法，无线电力接收装置和无线充电系统，并且无线电力接收装置可以包括被配置为将磁通量改变为 以无线方式接收电力的电流以及连接到所述受电部的电力控制器，以改变谐振频率以控制从所述电力接收单元接收到的功率，其中所述功率控制器包括第一电容器，连接到所述电力接收单元的第二电容器 并联的第一电容器，串联连接到第二电容器的第一开关以沿第一方向流动电流，第二开关被配置为沿与第一方向相反的第二方向流动电流;以及开关控制器，被配置为控制 第一和第二开关。
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公开(公告)号：US20240333040A1
公开(公告)日：2024-10-03
申请号：US18290606
申请日：2022-07-20
Applicant: LG Electronics Inc.
Inventor： Kyunghwan KIM , Seonghun LEE
CPC classification number: H02J50/402 , H02J50/10 , H02J50/80
Abstract: A wireless power transmitter includes: a plurality of primary coils for transmitting wireless power through magnetic coupling with a secondary coil of a wireless power receiver; and a plurality of permanent magnets arranged not to overlap the plurality of primary coils. The plurality of primary coils include: a first bottom coil and a second bottom coil which are arranged side by side in the width direction on a first plane and do not overlap each other; and a top coil disposed on a second plane positioned above the first plane. One side of the top coil is positioned above the first bottom coil, and the other side of the top coil is positioned above the second bottom coil. The plurality of permanent magnets are arranged between the first bottom coil and the second bottom coil at certain intervals along concentric circles around an axis perpendicular to the first plane.
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公开(公告)号：US20240297536A1
公开(公告)日：2024-09-05
申请号：US18280895
申请日：2021-03-09
Applicant: LG ELECTRONICS INC.
Inventor： Hyoungseok KIM , Jonggu KIM , Seonghun LEE , Jaeyeol KIM
CPC classification number: H02J50/90 , H02J50/12 , H02J50/402 , H02J50/80
Abstract: The present invention relates to a wireless power transmission device and a wireless power system comprising same. The wireless power transmission device and wireless power system comprising same, according to one embodiment of the present invention, comprise: a coil assembly including a plurality of coils; a first resonant capacitor connected to a first group of the plurality of coils; and a second resonant capacitor connected to a second group of the plurality of coils, and connected in parallel to the first resonant capacitor, wherein the number of groups of the plurality of coils is smaller than the number of the plurality of coils. Accordingly, a circuit for the selection and operation of at least some of the plurality of coils can be simply implemented, and charging can be quickly entered.
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30.发明公开公开(公告)号：US20230369916A1
公开(公告)日：2023-11-16
申请号：US18025634
申请日：2021-09-28
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan KIM , Seonghun LEE
CPC classification number: H02J50/70 , H02J50/12 , H02J50/402
Abstract: A wireless power transmission apparatus comprises: a plurality of transmission coils configured to transmit a wireless power to a wireless power reception apparatus; a shielding coil which is arranged on at least one surface of a dielectric substrate, and is configured in a loop shape having at least two turns so as to surround the plurality of transmission coils; and a capacitor configured to connect one point to the other point of the shielding coil. The plurality of transmission coils are arranged inside the shielding coil disposed on the dielectric substrate, and the direction of a magnetic field formed at one side and the other side of the plurality of transmission coils adjacent to the shielding coil is formed to be opposite to the direction of a magnetic field formed around the shielding coil so that the shielding coil shields external exposure of electromagnetic waves by the plurality of transmission coils.
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