Wireless power transfer systems with shield openings
First Claim
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1. An apparatus for wireless power transfer, the apparatus comprising:
- a plurality of magnetic elements joined together to form a magnetic component extending in a plane, wherein discontinuities in the magnetic component between adjacent magnetic elements define gaps in the magnetic component;
a coil comprising one or more loops of conductive material positioned, at least in part, on a first side of the plane, the one or more loops on both sides of the gaps; and
a conductive shield positioned on a second side of the plane and comprising one or more openings positioned relative to the gaps.
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Abstract
In a first aspect, the disclosure features apparatuses for wireless power transfer, the apparatuses including a plurality of magnetic elements joined together to form a magnetic component extending in a plane, where discontinuities in the magnetic component between adjacent magnetic elements define gaps in the magnetic component, a coil including one or more loops of conductive material positioned, at least in part, on a first side of the plane. The apparatuses include a conductive shield positioned on a second side of the plane and which includes one or more openings positioned relative to the gaps.
684 Citations
23 Claims
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1. An apparatus for wireless power transfer, the apparatus comprising:
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a plurality of magnetic elements joined together to form a magnetic component extending in a plane, wherein discontinuities in the magnetic component between adjacent magnetic elements define gaps in the magnetic component; a coil comprising one or more loops of conductive material positioned, at least in part, on a first side of the plane, the one or more loops on both sides of the gaps; and a conductive shield positioned on a second side of the plane and comprising one or more openings positioned relative to the gaps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for wireless power transfer, comprising:
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a plurality of magnetic elements joined together to form a magnetic component extending in a plane, wherein discontinuities in the magnetic component between adjacent magnetic elements define gaps in the magnetic component; a coil comprising one or more loops of conductive material positioned, at least in part, on a first side of the plane, the one or more loops on both sides of the gaps; and a conductive shield positioned on a second side of the plane and comprising one or more depressions formed in a surface of the shield facing the magnetic component, wherein each of the one or more depressions is positioned relative to the gaps. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification