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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
申请人： LG Electronics Inc.
发明人： Kyunghwan KIM , Seonghun LEE
CPC分类号： H02J50/402 , H02J50/10 , H02J50/80
摘要： 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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2.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
申请人： LG ELECTRONICS INC.
发明人： Kyunghwan KIM , Seonghun LEE
CPC分类号： H02J50/70 , H02J50/12 , H02J50/402
摘要： 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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公开(公告)号：US20220285991A1
公开(公告)日：2022-09-08
申请号：US17664400
申请日：2022-05-20
申请人： LG ELECTRONICS INC.
发明人： Kyunghwan KIM , Jihyun LEE , Bongsik KWAK , Yongcheol PARK
摘要： A wireless power transmitter according to one embodiment of the present disclosure comprises a primary coil forming magnetic coupling with a secondary coil provided in a wireless power receiver and transmitting wireless power to the wireless power receiver, wherein the primary coil is formed by spirally winding a plurality of subcoils connected electrically in parallel while keeping the subcoils in contact with each other, and the subcoil is litz wire consisting of several conducting wires packed in a bundle.
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公开(公告)号：US20210206232A1
公开(公告)日：2021-07-08
申请号：US17141869
申请日：2021-01-05
申请人： LG ELECTRONICS INC.
发明人： Jooseong LEE , Inho CHOI , Kyunghwan KIM
摘要： The present disclosure relates to a heat pump device for an electric vehicle, and more particularly, to a heat pump device that constitute three types of independent refrigerant cycle in which three different types of refrigerant flow respectively, and disposes a first heat exchange unit and a second heat exchange unit in which the refrigerants exchange heat with each other, in the refrigerant cycle, thereby performing an integrated heat management of an indoor space, a battery, and a driving module.
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5.发明申请公开(公告)号：US20200373789A1
公开(公告)日：2020-11-26
申请号：US16990466
申请日：2020-08-11
申请人： LG Electronics Inc.
发明人： Yongcheol PARK , Kyunghwan KIM
摘要： The present specification provides a wireless power reception apparatus comprising: a power pick-up unit configured to receive wireless power from a wireless power transmission apparatus by magnetic coupling with the wireless power transmission apparatus and convert an AC signal generated by the wireless power into a DC signal; a communication/control unit configured to receive the DC signal from the power pick-up unit and control the wireless power; and a load configured to receive the DC signal from the power pick-up unit. When foreign material is detected before power transmission, wireless power transmission is sustained on the basis of a safe basic power profile of 5 W or less, without interrupting power transmission, and thus, a charging delay can be prevented and the accuracy and reliability of detection of foreign material can be increased despite individual characteristics of the wireless power reception apparatus.
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公开(公告)号：US20200317022A1
公开(公告)日：2020-10-08
申请号：US16796374
申请日：2020-02-20
申请人： LG ELECTRONICS INC.
发明人： Jooseong LEE , Inho CHOI , Kyunghwan KIM
IPC分类号： B60H1/00 , F16K11/074 , F16K31/04
摘要： Disclosed is a four-way valve including a housing having a refrigerant filling chamber formed therein, a high pressure pipe hole formed on a bottom surface of the housing and coupled to a high pressure pipe through which refrigerant discharged from the compressor flows, a first pipe hole formed on an upper surface of the housing and coupled to a first pipe extending to a first heat exchanger, a second pipe hole formed on the upper surface of the housing and coupled to a second pipe extending to a second heat exchanger, a low pressure pipe hole formed on the upper surface of the housing and configured to allow the refrigerant to be collected to the compressor, and a switching guide configured to rotate to allow the low pressure pipe hole to selectively communicate with the first pipe hole or the second pipe hole.
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公开(公告)号：US20230093934A1
公开(公告)日：2023-03-30
申请号：US17875071
申请日：2022-07-27
申请人： LG ELECTRONICS INC.
发明人： Changwoo SUNG , Kyunghwan KIM , Minjung KIM
摘要： An outer rotor motor includes: a frame, a stator disposed on the frame, a coil wound around 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, where an inner surface of the cover includes a plurality of blades protruding from the inner surface of the cover and extending in a radial direction of the rotating shaft.
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8.发明申请公开(公告)号：US20220190650A1
公开(公告)日：2022-06-16
申请号：US17684905
申请日：2022-03-02
申请人： LG ELECTRONICS INC.
发明人： Kyunghwan KIM , Yongcheol PARK , Jihyun LEE , Gyunghwan YOOK
摘要： 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：US20220029471A1
公开(公告)日：2022-01-27
申请号：US17497266
申请日：2021-10-08
申请人： LG Electronics Inc.
发明人： Yongcheol PARK , Kyunghwan KIM
摘要： The present specification provides a wireless power reception apparatus comprising: a power pick-up unit configured to receive wireless power from a wireless power transmission apparatus by magnetic coupling with the wireless power transmission apparatus and convert an AC signal generated by the wireless power into a DC signal; a communication/control unit configured to receive the DC signal from the power pick-up unit and control the wireless power; and a load configured to receive the DC signal from the power pick-up unit. When foreign material is detected before power transmission, wireless power transmission is sustained on the basis of a safe basic power profile of 5 W or less, without interrupting power transmission, and thus, a charging delay can be prevented and the accuracy and reliability of detection of foreign material can be increased despite individual characteristics of the wireless power reception apparatus.
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10.发明申请公开(公告)号：US20210218287A1
公开(公告)日：2021-07-15
申请号：US17217170
申请日：2021-03-30
申请人： LG ELECTRONICS INC.
发明人： Kyunghwan KIM , Yongcheol PARK , Jihyun LEE , Gyunghwan YOOK
摘要： 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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