公开(公告)号：US20140327321A1

公开(公告)日：2014-11-06

申请号：US14334310

申请日：2014-07-17

Applicant: Furukawa Electric Co., Ltd.

Inventor： Masahiro KUSUNOKI ,  Mitsuru MASUDA ,  Hiroyuki TAMAOKA ,  Yoichi ISO

IPC: H01F38/14

CPC classification number: H01F38/14 ,  H01F2038/146 ,  H02J7/025 ,  H02J17/00 ,  H02J50/05 ,  H02J50/50 ,  H04B5/0012 ,  H04B5/0037

Abstract: A wireless power transmission system that transmits alternating-current power includes a power-transmitting device including first and second electrodes spaced apart and having a total width of λ/2π or less, i.e., a near field range, and a first inductor between the first and second electrodes and a AC power-generating section, and a power-receiving device including third and fourth electrodes spaced apart and having a total width of λ/2π or less, and a second inductor between the third and fourth electrodes and a load. A coupler including the first and second electrodes and the first inductor forms one resonant circuit and a coupler including the third and fourth electrodes and the second inductor forms another resonant circuit. Resonance frequencies of the couplers are substantially equal. The first and second electrodes and the third and fourth electrodes are spaced apart by λ/2π or less.

Abstract translation: 发送交流电力的无线电力传输系统包括：电力传输装置，包括间隔开的第一和第二电极，总宽度为λ/ 2和pgr; 以及第一和第二电极之间的第一电感器和AC发电部分，以及包括间隔开并且总宽度为λ/ 2和pgr的第三和第四电极的电力接收装置 ; 或更小，以及在第三和第四电极之间的第二电感器和负载。 包括第一和第二电极和第一电感器的耦合器形成一个谐振电路，并且包括第三和第四电极和第二电感器的耦合器形成另一谐振电路。 耦合器的谐振频率基本相等。 第一和第二电极和第三和第四电极间隔开λ/ 2和pgr; 或更少。

公开(公告)号：US20150333538A1

公开(公告)日：2015-11-19

申请号：US14813069

申请日：2015-07-29

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Masahiro KUSUNOKI ,  Mitsuru MASUDA

IPC: H02J5/00 ,  H02J17/00

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J17/00 ,  H02J50/05 ,  H02J50/80 ,  H04B5/0012 ,  H04B5/0037

Abstract: [OBJECT] There is provided a wireless power transmission system capable of transmitting power efficiently even when there is an obstacle or the like.[ORGANIZATION] A power transmission device has a first and a second electrode (111, 112), a first and a second connection line (115, 116), and a first inductor (113, 114). A power reception device has a third and a fourth electrode (121, 122), a third and a fourth connection line (125, 126), and a second inductor (123, 124). At least one of the first to the fourth electrode is housed in a conductive casing (310, 320) having an opening corresponding to an opposing electrode, and a resonance frequency of a power transmission coupler constituted of the first and the second electrode and the first inductor (113, 144) and a resonance frequency of a power reception coupler constituted of the third and the fourth electrode and the second inductor (123, 124) are set to be substantially equal.

Abstract translation: 提供一种能够有效地发送功率的无线电力传输系统，即使存在障碍物等。 [组织]动力传递装置具有第一和第二电极（111,112），第一和第二连接线（115,116）和第一电感器（113,114）。 电力接收装置具有第三和第四电极（121,122），第三和第四连接线（125,126）和第二电感器（123,124）。 第一至第四电极中的至少一个被容纳在具有对应于相对电极的开口的导电壳体（310,320）中，并且由第一和第二电极构成的动力传递耦合器的共振频率 电感器（113,144）和由第三和第四电极和第二电感器（123,124）构成的电力接收耦合器的谐振频率被设置为基本相等。

公开(公告)号：US20150333539A1

公开(公告)日：2015-11-19

申请号：US14813074

申请日：2015-07-29

Applicant: Furukawa Electric Co., Ltd.

Inventor： Masahiro KUSUNOKI ,  Mitsuru MASUDA

IPC: H02J5/00

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J50/05

Abstract: [OBJECT] There is provided a wireless power transmission system capable of transmitting power efficiently even when it is rotated.[ORGANIZATION] A power transmission device has a first and a second electrode (a center electrode 311 and an annular electrode 312) each having a rotationally symmetrical shape with respect to a common center axis, a first and a second connection line (connection lines 315, 316), and a first inductor to (inductor 313, 314). A power reception device has a third and a fourth electrode (center electrode 321 and annular electrode 322) each having a rotationally symmetrical shape with respect to a common center axis, a third and a fourth connection line (connection lines 325, 326), and a second inductor. The electrodes of the power transmission device and the power reception device are disposed to oppose each other across a distance of λ/2π or less as a near field, and a resonance frequency of a coupler constituted of the first and the second electrode and the first inductor and a resonance frequency of a coupler constituted of the third and the fourth electrode and the second inductor (inductor 323, 324) are set to be substantially equal.

Abstract translation: [OBJECT]提供了即使旋转时也能够有效地发送功率的无线电力传输系统。 [组织]动力传递装置具有相对于共同的中心轴具有旋转对称形状的第一和第二电极（中心电极311和环形电极312），第一和第二连接线（连接线315 ，316）和第一电感器耦合到（电感器313,314）。 受电装置具有相对于共同的中心轴，第三和第四连接线（连接线325,326）具有旋转对称形状的第三和第四电极（中心电极321和环形电极322），以及 第二电感器。 电力传输装置的电极和电力接收装置被设置成彼此相对的距离λ/ 2和pgr; 以下，以及由第一和第二电极和第一电感器构成的耦合器的谐振频率和由第三和第四电极和第二电感器（电感器323,324）构成的耦合器的谐振频率 ）被设定为基本相等。