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US 2006/0192643 A1Published application
Electromagnetic switching device
AssigneeSiemens Aktiengesellschaft
InventorsReinhard Maier, Erich Zerbian
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Abstract
A drive solenoid, a yoke, an armature and at least one contact are mounted in a housing of an electromagnetic switching device. The drive solenoid, yoke and armature are inductively intercoupled, in such a way that when an inrush current is applied to the drive solenoid, the armature can be displaced into a pickup position, thus directly or indirectly actuating the contact. The yoke and/or armature contain(s) pulverulent magnetic material.
Claims21
An electromagnetic switching device, comprising:
- a housing;
- a drive solenoid;
- a yoke;
- an armature;
- and
- at least one contact,
- the drive solenoid, the yoke, the armature and the at least one contact being mounted in the housing,
- the drive solenoid, the yoke and the armature being inductively intercoupled, so that, when an inrush current is applied to the drive solenoid, the armature is displaceable into a pickup position,
- the displacement of the armature into the pickup position allowing the contact to be directly or indirectly actuated,
- the yoke containing pulverulent magnetic material,
- wherein the drive solenoid and the yoke are cast with each other by way of a permanently elastic casting compound to form a block.
8 more elements
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Dependencies are inferred from the claim text.