Wireless power transmission system for transmitting alternating-current power wirelessly
US10075021B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2015 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Aug 19, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/79
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.