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1.发明申请公开(公告)号：US20150214749A1
公开(公告)日：2015-07-30
申请号：US14606613
申请日：2015-01-27
Applicant: LG INNOTEK CO., LTD.
Inventor： Yu Ri PARK , Dong Hyuk LEE , Sang Hak LEE
CPC classification number: H02J5/005 , G01R33/07 , G01R33/072 , H01F38/14 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/70 , H02J50/80 , H02J50/90
Abstract: A wireless power transfer system is disclosed. A wireless power transmitting apparatus for wirelessly transmitting power to a wireless power receiving apparatus includes a transmitting coil for transmitting the power, a hall sensor for sensing a change width of flux density caused y the wireless power receiving apparatus, and a controller for comparing the sensed change width of the flux density with a predetermined critical value to determine whether to transmit the power, wherein magnets provided in the wireless power transmitting apparatus and the wireless power receiving apparatus are disposed such that polarities of the magnets are different from each other at opposite faces thereof. In the wireless power transfer system, the magnets having polarities are disposed in the wireless power transmitting apparatus and the wireless power receiving apparatus. Consequently, the wireless power transmitting apparatus more effectively senses the change width of the flux density to wirelessly transfer power to the wireless power receiving apparatus.
Abstract translation: 公开了一种无线电力传输系统。 一种用于向无线电力接收装置无线发送电力的无线电力发送装置包括：用于发送电力的发送线圈，用于感测由无线电力接收装置引起的磁通密度变化幅度的霍尔传感器，以及用于比较感测到的电力的控制器 以预定的临界值改变通量密度的宽度，以确定是否发射功率，其中设置在无线电力发送装置中的磁体和无线电力接收装置被设置为使得磁铁的极性在相对的面上彼此不同 其中。 在无线电力传递系统中，具有极性的磁体设置在无线电力发送装置和无线电力接收装置中。 因此，无线电力发送装置更有效地感测通量密度的变化宽度，无线地向无线电力接收装置传送电力。
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公开(公告)号：US20190027954A1
公开(公告)日：2019-01-24
申请号：US16070188
申请日：2016-12-09
Applicant: LG INNOTEK CO., LTD.
Inventor： Sang Hak LEE , Sang Won LEE , Myeong Jae JEONG
Abstract: A wireless power transmitter, which transfers wireless power to a wireless power receiver, according to an embodiment includes: an accommodation part configured to accommodate the wireless power receiver; a transfer coil configured to surround the accommodation part in the form of a solenoid; a shield unit configured to surround the transfer coil in the form of the solenoid; an electromagnet disposed on a lower end of the accommodation part to fix the wireless power receiver; and a control unit configured to determine whether to transfer the wireless power to the wireless power receiver through the transfer coil, wherein the control unit controls the electromagnet so that the wireless power receiver is separated from the accommodation part due to a release of attractive force or repulsive force between the electromagnet and a metal body of the wireless power receiver when the wireless power is not transferred.
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公开(公告)号：US20180175631A1
公开(公告)日：2018-06-21
申请号：US15884020
申请日：2018-01-30
Applicant: LG INNOTEK CO., LTD.
Inventor： Yu Ri PARK , Dong Hyuk LEE , Sang Hak LEE
Abstract: A wireless power transfer system is disclosed. A wireless power transmitting apparatus for wirelessly transmitting power to a wireless power receiving apparatus includes a transmitting coil for transmitting the power, a hall sensor for sensing a change width of flux density caused by the wireless power receiving apparatus, and a controller for comparing the sensed change width of the flux density with a predetermined critical value to determine whether to transmit the power, wherein magnets provided in the wireless power transmitting apparatus and the wireless power receiving apparatus are disposed such that polarities of the magnets are different from each other at opposite faces thereof. In the wireless power transfer system, the magnets having polarities are disposed in the wireless power transmitting apparatus and the wireless power receiving apparatus.
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