US 12,247,728 B2
Wireless power feeding system having battery mounted device engaged with power receiving device with light unit mounted device
Yoshinori Kuno, Yokohama (JP); Yasushi Sekizawa, Kuki (JP); and Kenji Tahara, Kuki (JP)
Assigned to RAISONTECH INC., Kuki (JP)
Appl. No. 17/593,918
Filed by AOI JAPAN CO., LTD., Yokohama (JP); and RAISONTECH INC., Kuki (JP)
PCT Filed Mar. 24, 2020, PCT No. PCT/JP2020/012993
§ 371(c)(1), (2) Date Sep. 28, 2021,
PCT Pub. No. WO2020/196508, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-062924 (JP), filed on Mar. 28, 2019.
Prior Publication US 2022/0178530 A1, Jun. 9, 2022
Int. Cl. H02J 7/00 (2006.01); F21V 17/10 (2006.01); F21V 23/02 (2006.01); F21V 23/06 (2006.01); F21V 31/00 (2006.01); H02J 50/12 (2016.01); F21Y 115/10 (2016.01)
CPC F21V 23/06 (2013.01) [F21V 17/105 (2013.01); F21V 23/023 (2013.01); F21V 31/005 (2013.01); H02J 50/12 (2016.02); F21Y 2115/10 (2016.08)] 12 Claims
OG exemplary drawing
 
1. A composite wireless power feeding system comprising:
a wireless charging system, the wireless charging system having a power feeding coil, and a power feeding circuit unit supplying power to cause the power feeding coil to generate electromagnetic waves;
a wireless power system including
a power reception and feeding coil,
a power circuit unit coupled to the power reception and feeding coil and selectively configured as a power feeding circuit to supply power to the power reception and feeding coil to generate electromagnetic waves, the power circuit unit being selectively configured as a power storage circuit to recover energy induced in the power reception and feeding coil responsive to the power reception and feeding coil being proximate to the power feeding coil and receipt of electromagnetic waves emitted from the power feeding coil, and
a battery coupled the power circuit unit for storing the energy recovered from the power reception and feeding coil; and
an energy consumption circuit unit configured for receiving energy from the power circuit unit, the energy consumption circuit unit including a power reception coil coupled to an energy consumption circuit for receipt of electric energy by electromagnetic induction using a phenomenon in which the power reception and feeding coil and the power reception coil resonate at a predetermined resonance frequency,
wherein the battery functions as a power source that powers the power reception and feeding coil to generate electromagnetic waves, the power circuit unit switching between a power feeding mode and a power reception mode responsive to operation of a mode switching means,
where the power feeding mode is activated by the mode switching means, the power circuit unit is activated and outputs electromagnetic waves from the power reception and feeding coil in proximity to the power reception coil to supply energy to the energy consumption circuit unit, and
where the power reception mode is activated by the mode switching means, the power circuit unit is activated and receives energy induced in the power reception and feeding coil to charge the battery by electromagnetic waves emitted from the power feeding coil disposed in proximity to the power reception and feeding coil, and wherein
the power reception and feeding coil, the battery, the power circuit unit, and the mode switching means are integrally configured as a battery-mounted device,
the power reception coil, and the energy consumption circuit unit are integrally configured as a terminal consumption unit,
each of a plurality of types of the terminal consumption units includes a plurality of types of the energy consumption circuit units having different functions, and is replaceable with respect to a releasable coupling with the battery-mounted device, and
the terminal consumption unit and the battery-mounted device are connected and an electrical coupling portion is not exposed to an ambient environment thereof.