System for transferring power inductively to items within a container

摘要

An inductive power transfer system includes an inductive power transmitter in the shape of a container that is capable of holding one or more electrical devices. The system is operable to transfer power inductively to devices stowed within the container via inductive power receivers. The inductive power transmitter includes at least one primary inductor configured to couple inductively with at least one secondary inductor and at least one driver configured to provide a variable electric potential at a driving frequency across said primary inductor. The inductive power receiver may comprise at least one secondary inductor connectable to a receiving circuit and an electric load, said secondary inductor configured to couple inductively with said at least one primary inductor such that power is transferred to said electric load.

主权项

1. An inductive power transfer system comprising at least one of an inductive power transmitter and an inductive power receiver,
said inductive power transmitter comprising least one primary inductor configured to couple inductively with at least one secondary inductor and at least one driver configured to provide a variable electric potential at a driving frequency across said primary inductor; and said inductive power receiver comprising at least one secondary inductor connectable to a receiving circuit and an electric load, said secondary inductor configured to couple inductively with said at least one primary inductor such that power is transferred to said electric load, said inductive power receiver further comprising a regulator operable to trickle charge the load, and further operable to provide a current to the load such that a rate of charging the load is substantially the same as a self-discharging rate of the load, wherein said inductive power transmitter is in the shape of a container and comprises an inductive charging space capable of holding at least one of said inductive power receivers, and wherein said inductive power transmitter comprises a plurality of primary inductors being positioned such that a first primary inductor produces a first magnetic field in an orientation that is different from the orientation of a second magnetic field produced by a second primary inductor.