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US 8,143,977 B2Granted
Electromagnetic drive and an electromechanical switching device
AssigneeSiemens Aktiengesellschaft
InventorsChristian Gogeiβl, Martin Pfeifer
Life of this patent
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Abstract
In one embodiment of the present invention, an electromagnetic drive unit including a coil, a yoke, and an armature is disclosed. The winding of the coil is partly wound in one direction and partly in the other direction. An electromechanical switching device includes at least one input terminal and a respective output terminal and an electromagnetic drive unit adapted to limit or to break the electrical current between the at least one input terminal and the respective output terminal.
Claims13
An electromagnetic drive unit, comprising:
- a coil;
- a yoke;
- and
- an armature directly attached to a movable conductive contact bridge having at least two electrical contacts mounted thereon, one electrical contact on the contact bridge being disposed opposite a stationary contact on a current rail and another electrical contact on the contact bridge being disposed opposite a stationary contact attached to a conductor attached to the coil, wherein a winding of said coil is partly wound in one direction and partly wound in an other direction and the winding includes a first layer wound in the one direction and a second layer wound on the first layer in the other direction.
1 more element
Dependencies are inferred from the claim text.