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US 6,724,287 B2Granted
Electromagnet
AssigneeRobert Bosch GmbH
InventorsVolker Nadenau, Thomas Kupfer
Life of this patent
Estimating the term…
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AssigneeRobert Bosch GmbH
InventorsVolker Nadenau, Thomas Kupfer
Estimating the term…
In an electromagnet (10) having a magnet coil (13), which has an exciter winding (23) wound from an insulated winding wire (24), having a magnet core (14), having a movable armature (16) opposite the magnet core (14), and having a restoring spring (21) engaging the armature (16), a plurality of meltable stanchions (26) of electrically conductive material that are connected electrically conductively to one another are disposed on the magnet coil (13), for the sake of later calibration of the magnetic force furnished by the completed electromagnet (10). The winding wire (24) is guided around each of the stanchions (26), in selected windings of the exciter winding. To adjust the desired magnetic force, at least two stanchions (26) are melted, so that they form a reliable weld with the winding wire (24), through the wire insulation thereof (FIG. 4).
An electromagnet, having a magnet coil (14) which has an exciter winding (23) wound from an insulated winding wire (24), having a magnet core (14), having a movable armature (16) opposite the magnet core (14) with an air gap spacing between them, and having a restoring spring (21), engaging the armature (16), the spring force of which is oriented counter to the magnetic force, characterized in that disposed on the magnet coil (14) are a plurality of meltable stanchions (26) of electrically conductive material that are electrically conductively connected to one another, and that in selected windings of the exciter winding (23), the winding wire (24) is wrapped around each one of the stanchions (26) individually.
Dependencies are inferred from the claim text.