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Wireless power transmission system for transmitting alternating-current power wirelessly

專利號(hào)
US10097039B2
公開日期
2018-10-09
申請(qǐng)人
FURUKAWA ELECTRIC CO., LTD.(JP Tokyo)
發(fā)明人
Masahiro Kusunoki; Mitsuru Masuda
IPC分類
H02J5/00; H02J50/12; H02J7/02; H02J50/05
技術(shù)領(lǐng)域
coupler,electrode,power,electrodes,in,annular,reception,fig,inductors,center
地域: Tokyo

摘要

[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.

說明書

EXPLANATION OF REFERENCE SIGNS

310 power transmission coupler

311 center electrode (first electrode)

311a cutout

311b through hole

312 annular electrode (second electrode)

312a cutout

313, 314 inductor

315, 316 connection lines

320 power reception coupler

321 center electrode (third electrode)

321a cutout

321b through hole

322 annular electrode (fourth electrode)

322a cutout

323, 324 inductor

325, 326 connection line

410 power transmission coupler

411 electrode (first electrode)

412 electrode (second electrode)

420 power reception coupler

421 electrode (third electrode)

422 electrode (fourth electrode)

權(quán)利要求

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