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1.发明申请公开(公告)号：US20180287427A1
公开(公告)日：2018-10-04
申请号：US15902395
申请日：2018-02-22
Applicant: FUJITSU LIMITED
Inventor： Hirotaka OSHIMA , Kiyoto MATSUI
Abstract: A power receiving unit includes a secondary resonant coil for receiving electric power from a primary resonant coil using magnetic resonance or electric field resonance, a secondary coil capable of changing a number of turns or a pitch of a winding for receiving the electric power from the secondary resonant coil using electromagnetic induction, a rectification circuit, and a controller. The electric power received by the secondary coil is rectified by the rectification circuit, and transmitted to a DC-DC converter for supplying the electric power to a load circuit. The controller changes the number of turns or the pitch of the winding of the secondary coil such that an input voltage of the DC-DC converter does not exceed an upper limit, based on a magnitude of the electric power received from the primary resonant coil.
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公开(公告)号：US20180197678A1
公开(公告)日：2018-07-12
申请号：US15917519
申请日：2018-03-09
Applicant: FUJITSU LIMITED
Inventor： Akiyoshi UCHIDA , Kazuyuki OZAKI , Masakazu TAGUCHI , Satoshi SHIMOKAWA , Hiroyasu KAWANO , Kiyoto MATSUI
IPC: H01F38/14 , H04B5/00 , H02J7/02 , H02J5/00 , B60L11/18 , H02J50/60 , H02J50/50 , H02J50/40 , H02J50/12 , H02J50/90 , H02J50/80
CPC classification number: H01F38/14 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/12 , H02J50/40 , H02J50/50 , H02J50/60 , H02J50/80 , H02J50/90 , H04B5/0037 , Y10T307/305
Abstract: A wireless power transfer system includes a plurality of power sources and at least one power receiver, in which power transfer from the power sources to the power receiver is performed in wireless by using magnetic field resonance or electric field resonance. In the system, one of the plurality of power sources is designated as a master power source and the other one or more power sources are designated as slave power sources. In addition, the master power source controls the plurality of power sources and the at least one power receiver to perform the power transfer. This allows the system to perform the power transfer in an optimum state.
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公开(公告)号：US20160049698A1
公开(公告)日：2016-02-18
申请号：US14926743
申请日：2015-10-29
Applicant: FUJITSU LIMITED
Inventor： Hiroyasu KAWANO , Akiyoshi UCHIDA , Satoshi SHIMOKAWA , Kiyoto MATSUI , Kazuyuki OZAKI , Masakazu TAGUCHI
CPC classification number: H01M10/46 , H01M2/022 , H01M2220/30 , H02J5/005 , H02J7/0042 , H02J7/02 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/70
Abstract: A rechargeable battery includes: a battery body including a cylindrical outer peripheral side surface; and a power receiving coil wound in at most a single layer around the outer peripheral side surface, and electrically connected to the battery body. The power receiving coil is helically wound around the outer peripheral side surface while forming a space from which the outer peripheral side surface is exposed.
Abstract translation: 可充电电池包括：电池体，包括圆柱形外周侧表面; 以及绕外周侧表面缠绕在最多一层的受电线圈，并且电连接到电池体。 电力接收线圈在形成外周侧表面露出的空间的同时螺旋地缠绕在外周侧面上。
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公开(公告)号：US20130147283A1
公开(公告)日：2013-06-13
申请号：US13763901
申请日：2013-02-11
Applicant: Fujitsu Limited
Inventor： Hiroyasu KAWANO , Masakazu TAGUCHI , Satoshi SHIMOKAWA , Akiyoshi UCHIDA , Kiyoto MATSUI
IPC: H01F38/14
CPC classification number: H01F38/14 , H01F27/346 , H02J5/005 , H02J50/12 , H02J50/40 , H02J50/70 , H04B5/0037 , H04B5/0081
Abstract: A power transmission device includes a first coil and a second coil. The first coil emits a first electromagnetic wave. The second coil is arranged at a position where a center axis of the first coil and a center axis of the second coil are not overlapped to each other and emits a second electromagnetic wave having a strength distribution with a polarity opposite to a polarity of a strength distribution of the first electromagnetic wave.
Abstract translation: 动力传递装置包括第一线圈和第二线圈。 第一线圈发出第一电磁波。 第二线圈布置在第一线圈的中心轴线和第二线圈的中心轴线彼此不重叠的位置处，并且发射具有极性与强度极性相反的强度分布的第二电磁波 第一电磁波的分布。
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