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US 2014/0176058 A1Published application
Reducing Inductive Heating
AssigneeNokia Corporation
InventorJuha Reinhold BACKMAN
Life of this patent
Estimating the term…
Abstract
An apparatus including a magnet assembly having at least two magnet assembly components; and an eddy current heating reduction system configured to reduce heating of the magnet assembly by magnetic fields. The eddy current heating reduction system includes electrical insulation between the at least two magnet assembly components, and includes at least one of the at least two magnet assembly components having a divided current loop area at least two spaced subsections.
Claims20
An apparatus comprising:
- a magnet assembly comprising at least two magnet assembly components;
- and
- an eddy current heating reduction system configured to reduce heating of the magnet assembly by magnetic fields, where the eddy current heating reduction system comprises electrical insulation between the at least two magnet assembly components, and by providing at least one of the at least two magnet assembly components with a divided current loop area having at least two spaced subsections.
A method comprising:
- providing at least one magnet;
- and
- connecting at least one pole piece to the at least one magnet, where the at least one pole piece is electrically insulated from the at least one magnet, and where the at least one pole piece and/or the at least one magnet comprises a divided eddy current loop area having multiple spaced subsections to reduce eddy current heating of the at least one pole piece and/or the at least one magnet by magnetic fields.
An apparatus comprising:
- a housing;
- a rechargeable battery in the housing;
- an induction charging system in the housing coupled to the rechargeable battery;
- and
- a magnet assembly in the housing, where the magnet assembly comprises least one magnet and a first pole piece connected to the at least one magnet, where the first pole piece is electrically insulated from the at least one magnet, and where the first pole piece comprises a divided eddy current loop area having at least two spaced subsections to reduce eddy current heating of the first pole piece by magnetic fields used for recharging the battery by the induction charging system.
2 more elements
Dependencies are inferred from the claim text.