Electromagnetic Energy Scavenger Based on Moving Permanent Magnets
First Claim
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1. An electromagnetic energy scavenger for converting kinetic energy into electrical energy, the electromagnetic energy scavenger comprising:
- at least one permanent magnet;
one or more coils lying in a coil plane, the one or more coils being electrically interconnected for delivery of electrical energy, wherein, upon mechanical movement of the energy scavenger, the at least one permanent magnet is freely movable relative to the coils in a plane parallel to the coil plane, thus generating an electrical field in at least one coil; and
at least one soft magnetic layer in a plane parallel to the coil plane for improving the magnetic flux confinement to the at least one coil, the at least one soft magnetic layer comprising a plurality of segments.
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Abstract
An electromagnetic energy scavenger (10) for converting kinetic energy into electrical energy comprises at least one permanent magnet (12) and one or more coils (11) lying in a coil plane, the one or more coils being electrically interconnected for delivery of electrical energy. Upon mechanical movement of the energy scavenger (10), the at least one permanent magnet (12) is freely movable relative to the coils (11) in a plane parallel to the coil plane, thus generating an electrical field in at least one coil (11).
49 Citations
15 Claims
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1. An electromagnetic energy scavenger for converting kinetic energy into electrical energy, the electromagnetic energy scavenger comprising:
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at least one permanent magnet; one or more coils lying in a coil plane, the one or more coils being electrically interconnected for delivery of electrical energy, wherein, upon mechanical movement of the energy scavenger, the at least one permanent magnet is freely movable relative to the coils in a plane parallel to the coil plane, thus generating an electrical field in at least one coil; and at least one soft magnetic layer in a plane parallel to the coil plane for improving the magnetic flux confinement to the at least one coil, the at least one soft magnetic layer comprising a plurality of segments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for converting kinetic energy into electrical energy, the method comprising:
mechanically moving at least one permanent magnet with respect to one or more coils lying in a coil plane, wherein mechanically moving the at least one permanent magnet provides a free movement of the at least one magnet in a plane parallel to the coil plane, and wherein at least one soft magnetic layer is provided in a plane parallel to the coil plane for improving the magnetic flux confinement to the at least one coil, the at least one soft magnetic layer comprising a plurality of segments. - View Dependent Claims (15)
Specification