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Title:
WIRELESS POWER FEEDING SYSTEM, AND POWER RECEIVER HAVING CIRCULAR, SPHERICAL, OR POLYHEDRAL SHAPE
Document Type and Number:
WIPO Patent Application WO/2020/170996
Kind Code:
A1
Abstract:
[Problem] To perform wireless charging using an existing electronic apparatus. [Solution] Provided is a wireless power feeding system comprising a power feeder and a power receiver including a power reception coil, a power reception circuit unit for recovering energy generated in the power reception coil, and an internal secondary battery for storing energy, wherein electric energy is supplied from the power feeder to the power receiver by means of electromagnetic induction using a resonance phenomenon. The power receiver has an outer shape identical to that of a conventional battery, and has a power receiver housing accommodating the power reception coil, the power reception circuit unit, and the internal secondary battery. Further, the power receiver has two electrodes disposed in positions identical to those of the conventional battery. Further, the power feeder includes a power feeding base on which the power receiver can be mounted. The power reception coil of the power receiver is capable of receiving power from any direction, and the power receiver is attached in a battery holder of another electronic apparatus. By placing the electronic apparatus with the power receiver attached therein on the power feeding base, it is possible to charge the internal secondary battery by means of wireless power feeding from the power feeder to the power receiver, while the power feeder simultaneously discharging and supplying the electronic apparatus with power.

Inventors:
SEKIZAWA YASUSHI (JP)
TAHARA KENJI (JP)
Application Number:
JP2020/005953
Publication Date:
August 27, 2020
Filing Date:
February 17, 2020
Export Citation:
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Assignee:
RAISONTECH INC (JP)
International Classes:
H02J50/12; H02J7/00; H02J50/40
Domestic Patent References:
WO2013021801A12013-02-14
Foreign References:
JP2015088376A2015-05-07
JP2011045236A2011-03-03
CN2852415Y2006-12-27
Attorney, Agent or Firm:
THE PATENT CORPORATE BODY PROTEC (JP)
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