Magnetic coupling
AssigneeTechnische UniversitäT Wien
InventorsChristoph Janeczek, Markus Hinteregger
Life of this patent
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Abstract
Disclosed is a magnetic coupling for transmitting torque along an axis of rotation, comprising two coupling parts which can be rotated relative to each other, wherein a drive-side coupling part has a drive-side permanent magnet and wherein an output-side coupling part has an output-side permanent magnet that lies opposite and at a distance from the drive-side permanent magnet along the axis of rotation. One of the coupling parts comprises a diverting element which is at least partially ferromagnetic and is non-rotatably connected to the permanent magnet of said coupling part and one part of the diverting element is disposed radially outside the opposite permanent magnet.
Claims17
A magnetic coupling for transmitting torque along an axis of rotation, comprising two coupling parts which can be rotated relative to each other, one of the two coupling parts being a drive-side coupling part comprising a drive-side permanent magnet, and the other of the two coupling parts being an output-side coupling part comprising an output-side permanent magnet that lies, in a direction of the axis of rotation, opposite and at a distance from the drive-side permanent magnet, wherein the drive-side permanent magnet and the output-side permanent magnet are separated by an even separation plane which is perpendicular to the axis of rotation, wherein one of the two coupling parts comprises an at least partially ferromagnetic diverting element which is non-rotatably connected to one of the drive-side permanent magnet or the output-side permanent magnet of each permanent magnet's respective coupling part, and wherein one part of the diverting element is disposed radially outside the other of the drive-side permanent magnet or the output-side permanent magnet and wherein a direction of magnetisation of the drive-side permanent magnet and a direction of magnetisation of the output-side permanent magnet are oriented perpendicular to the axis of rotation.
A magnetic coupling for transmitting torque along an axis of rotation, comprising two coupling parts which can be rotated relative to each other, one of the two coupling parts being a drive-side coupling part comprising a drive-side permanent magnet, and the other of the two coupling parts being an output-side coupling part comprising an output-side permanent magnet that lies opposite and at a distance from the drive-side permanent magnet along the axis of rotation, wherein one of the two coupling parts comprises an at least partially ferromagnetic diverting element which is non-rotatably connected to the one of the drive-side permanent magnet or the output-side permanent magnet of each permanent magnet's respective coupling part, and wherein one part of the diverting element is disposed radially outside the other one of the drive-side permanent magnet or the output-side permanent magnet, wherein a diamagnetic shielding element is arranged at a front side of the one of the drive-side permanent magnet or the output-side permanent magnet non-rotatably connected to the diverting element, which front side is facing the other one of the drive-side permanent magnet or the output-side permanent magnet in a region centred around the axis of rotation, and wherein the shielding element adjoins the diverting element circumferentially.
Dependencies are inferred from the claim text.