Induction charging system
First Claim
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1. An inductive charging device comprising:
- a housing defining an upper surface;
an electromagnetic transceiver coil in the housing; and
a ferrofluid layer in the housing between the coil and the upper surface,and operative to shape an electromagnetic field between the transceiver coil and a receiving coil abutting the upper surface.
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Abstract
An inductive charging system and method is disclosed. A ferrofluid layer is disposed between the charging coil and the receiving coil. The ferrofluid layer directs and focuses the magnetic flux field flowing between the charging coil and the receiving coil.
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Citations
20 Claims
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1. An inductive charging device comprising:
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a housing defining an upper surface; an electromagnetic transceiver coil in the housing; and a ferrofluid layer in the housing between the coil and the upper surface, and operative to shape an electromagnetic field between the transceiver coil and a receiving coil abutting the upper surface. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An inductive charging system comprising:
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an electronic device including; a rechargeable battery; a receiving coil electromagnetically associated with said battery; an inductive charging device including; a housing having an upper surface; a transceiver coil in said housing; a ferrofluid layer positioned between said transceiver coil and said receiving coil; and whereby said ferrofluid layer directs an electromagnetic field between said receiving coil and said transceiver coil when said electronic device is positioned adjacent said upper surface. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for charging an electronic device comprising the steps of:
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providing an inductive charging device; placing an rechargeable battery on the inductive charging device; generating a magnetic flux field between the charging device and the rechargeable battery; and directing said magnetic flux field with a ferrofluid layer positioned between the charging device and the rechargeable battery. - View Dependent Claims (17, 18, 19, 20)
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Specification