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US 7,586,220 B2Granted
Electromechanical generator for converting mechanical vibrational energy into electrical energy
AssigneePerpetuum Ltd.
InventorStephen Roberts
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AssigneePerpetuum Ltd.
InventorStephen Roberts
Estimating the term…
An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a housing, an electrically conductive coil assembly fixedly mounted in the housing, the coil assembly having radially inner and outer sides, and upper and lower edges, thereof, a mount for the coil assembly extending inwardly of the radially inner side for fixing the coil assembly in a fixed position in the housing, a magnetic core assembly movably mounted in the housing for linear vibrational motion along an axis, and a biasing device mounted between the housing and the magnetic core assembly to bias the magnetic core assembly in opposed directions along the axis towards a central position, wherein the magnetic core assembly encloses the electrically conductive coil assembly on the radially outer side and on the upper and lower edges, and on a part of the radially inner side, the magnetic core assembly having a gap on a radially inner portion thereof through which the mount extends, and the radially inner portion including two opposed magnets spaced along the axis.
An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a housing, an electrically conductive coil assembly fixedly mounted in the housing, the coil assembly having radially inner and outer sides, and upper and lower edges, thereof, a mount for the coil assembly extending inwardly of the radially inner side for fixing the coil assembly in a fixed position in the housing, a magnetic core assembly movably mounted in the housing for linear vibrational motion along an axis, and a biasing device mounted between the housing and the magnetic core assembly to bias the magnetic core assembly in opposed directions along the axis towards a central position, wherein the magnetic core assembly encloses the electrically conductive coil assembly on the radially outer side and on the upper and lower edges, and on a part of the radially inner side, the magnetic core assembly having a gap on a radially inner portion thereof through which the mount extends, and the radially inner portion including two opposed magnets spaced along the axis.
An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a fixed electrically conductive coil assembly and a magnet assembly movably mounted for linear vibrational motion along an axis, wherein the magnet assembly comprises a pair of magnets spaced along the axis, poles of the magnets having a first common polarity facing towards each other and separated by a gap, and poles of the magnets facing away from each other being of a second common polarity and being coupled to a common ferromagnetic body located radially outwardly of the magnets relative to the axis, and a biasing device for biasing the magnet assembly, comprising the pair of magnets and the ferromagnetic body coupled thereto, in opposed directions along the axis towards a central position, wherein the magnet assembly comprises two opposed magnetic circuits spaced along the axis, each magnetic circuit being associated with a respective portion of the coil assembly.
An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a fixed electrically conductive coil assembly and a magnet assembly movably mounted for linear vibrational motion along an axis, and a biasing device for biasing the magnet assembly in opposed directions along the axis towards a central position, wherein the magnet assembly is rotationally symmetric and has a substantially C-shaped cross-section enclosing an annular cavity, having a gap on the inner radius thereof in which cavity the coil assembly is disposed.
Dependencies are inferred from the claim text.